Mopar model 812 car radio, (early 1950's Chrysler product)

K

klem kedidelhopper

Guest
It seems like everything coming in here lately is other than TV
repairs. But TV's are getting so cheap now and as a consequence things
are so slow I hate to turn anything away these days.This is a six volt
positive ground radio out of an early 1950's Chrysler product. Tubes
light up but vibrator will not buzz. I pulled the vibrator and
connected the coil terminals up to six volts and it does buzz. Not
conclusive but at the very least it tells me that six volts is not
reaching the coil. Does anyone have a schematic for this radio, or do
you know where I might find one? The owner just bought the car, is
restoring it and really wants to keep it original, so he'd really like
to have this radio working. Thanks, Lenny
 
klem kedidelhopper <captainvideo462009@gmail.com> wrote in message
news:a5b8ddea-d0b2-40c4-b137-f151d4146709@r6g2000vbz.googlegroups.com...
It seems like everything coming in here lately is other than TV
repairs. But TV's are getting so cheap now and as a consequence things
are so slow I hate to turn anything away these days.This is a six volt
positive ground radio out of an early 1950's Chrysler product. Tubes
light up but vibrator will not buzz. I pulled the vibrator and
connected the coil terminals up to six volts and it does buzz. Not
conclusive but at the very least it tells me that six volts is not
reaching the coil. Does anyone have a schematic for this radio, or do
you know where I might find one? The owner just bought the car, is
restoring it and really wants to keep it original, so he'd really like
to have this radio working. Thanks, Lenny
Click to expand...

I have renovated a vibrator, usual pitted contacts problem, robbing contacts
from
a power relay or switch and swaging them into the carrier.
 
On Apr 19, 7:25 pm, klem kedidelhopper <captainvideo462...@gmail.com>
wrote:
It seems like everything coming in here lately is other than TV
repairs. But TV's are getting so cheap now and as a consequence things
are so slow I hate to turn anything away these days.This is a six volt
positive ground radio out of an early 1950's Chrysler product. Tubes
light up but vibrator will not buzz. I pulled the vibrator and
connected the coil terminals up to six volts and it does buzz. Not
conclusive but at the very least it tells me that six volts is not
reaching the coil. Does anyone have a schematic for this radio, or do
you know where I might find one? The owner just bought the car, is
restoring it and really wants to keep it original, so he'd really like
to have this radio working. Thanks, Lenny
Click to expand...
Do you have six dollars and fifty cents? A NOS Sams Photofact can be
yours:

http://www.smcelectronics.com/samsauto.htm

MOPAR Models: 812/813/815/816/817 AM Car Radio. - $6.50
 
This is a six volt
positive ground radio out of an early 1950's Chrysler product. Tubes
light up but vibrator will not buzz. I pulled the vibrator and
connected the coil terminals up to six volts and it does buzz.
Click to expand...
FWIW:

There were solid state vibrators available. Not sure where to look and/
or find one today.

Bob AZ
 
"klem kedidelhopper" <captainvideo462009@gmail.com> wrote in message
news:a5b8ddea-d0b2-40c4-b137-f151d4146709@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than TV
: repairs. But TV's are getting so cheap now and as a consequence things
: are so slow I hate to turn anything away these days.This is a six volt
: positive ground radio out of an early 1950's Chrysler product. Tubes
: light up but vibrator will not buzz. I pulled the vibrator and
: connected the coil terminals up to six volts and it does buzz. Not
: conclusive but at the very least it tells me that six volts is not
: reaching the coil. Does anyone have a schematic for this radio, or do
: you know where I might find one? The owner just bought the car, is
: restoring it and really wants to keep it original, so he'd really like
: to have this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS
 
On Apr 20, 6:56 am, "Colin Horsley" <horsley-s...@westnet.com.au>
wrote:
"klem kedidelhopper" <captainvideo462...@gmail.com> wrote in message

news:a5b8ddea-d0b2-40c4-b137-f151d4146709@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than TV
: repairs. But TV's are getting so cheap now and as a consequence things
: are so slow I hate to turn anything away these days.This is a six volt
: positive ground radio out of an early 1950's Chrysler product. Tubes
: light up but vibrator will not buzz. I pulled the vibrator and
: connected the coil terminals up to six volts and it does buzz. Not
: conclusive but at the very least it tells me that six volts is not
: reaching the coil. Does anyone have a schematic for this radio, or do
: you know where I might find one? The owner just bought the car, is
: restoring it and really wants to keep it original, so he'd really like
: to have this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS
Click to expand...
Thanks for all the info guys.I don't know for certain yet if I need a
vibrator but I do need to order a schematic. Lenny
 
On 4/20/2011 1:55 PM, Meat Plow wrote:
On Wed, 20 Apr 2011 05:29:17 -0700, klem kedidelhopper wrote:

On Apr 20, 6:56 am, "Colin Horsley"<horsley-s...@westnet.com.au> wrote:
"klem kedidelhopper"<captainvideo462...@gmail.com> wrote in message

news:a5b8ddea-d0b2-40c4-b137-
f151d4146709@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than TV :
repairs. But TV's are getting so cheap now and as a consequence things
: are so slow I hate to turn anything away these days.This is a six
volt : positive ground radio out of an early 1950's Chrysler product.
Tubes : light up but vibrator will not buzz. I pulled the vibrator and
: connected the coil terminals up to six volts and it does buzz. Not :
conclusive but at the very least it tells me that six volts is not :
reaching the coil. Does anyone have a schematic for this radio, or do :
you know where I might find one? The owner just bought the car, is :
restoring it and really wants to keep it original, so he'd really like
: to have this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS

Thanks for all the info guys.I don't know for certain yet if I need a
vibrator but I do need to order a schematic. Lenny

Pull the vibrator out of its case and look for welded contacts. Lots of
times they can be separated and dressed with a relay file or fine emery
nail file. Sometimes you can even bang on the vibrator and loosen the
contacts if they aren't stuck together badly. I ran across this Youtube
video some while back. It will help you immensly

http://youtu.be/Fp6PkRTmb8U
Click to expand...
yes, this can work. I've repaired a few over the years by disassembling
and using an auto points file on the contacts. They are usually easy to
take apart, too.

--
I'm never going to grow up.
 
On Tue, 19 Apr 2011 19:25:51 -0700 (PDT), klem kedidelhopper
<captainvideo462009@gmail.com> wrote:

It seems like everything coming in here lately is other than TV
repairs. But TV's are getting so cheap now and as a consequence things
are so slow I hate to turn anything away these days.This is a six volt
positive ground radio out of an early 1950's Chrysler product. Tubes
light up but vibrator will not buzz. I pulled the vibrator and
connected the coil terminals up to six volts and it does buzz. Not
conclusive but at the very least it tells me that six volts is not
reaching the coil. Does anyone have a schematic for this radio, or do
you know where I might find one? The owner just bought the car, is
restoring it and really wants to keep it original, so he'd really like
to have this radio working. Thanks, Lenny
It looks like most of the other replys totally missed the fact that
Click to expand...
the vibrator isn't vibrating in the radio, but does work with DC
applied directly.
I just did a quick check and two terminals of the vibrator are
usually connected directly across the DC input. That should make
troubleshooting fairly simple, even without a schematic.

Of course, if this is point to point wiring, it's probably a rats nest
of wires in there. But no lead free solder!!

PlainBill
 
On 4/20/2011 2:53 PM, spamtrap1888 wrote:

Guys, the OP says his vibrator buzzes when he applies 6 volts directly
to it. That argues that the vibrator is not the problem, but that
there's an open circuit between the power supply and the vibrator.

I would suspect that either the socket contacts or the pins on the
vibrator are corroded.
Click to expand...
I did miss that... Likely it is good and there is a supply problem then

--
I'm never going to grow up.
 
On Wed, 20 Apr 2011 05:29:17 -0700, klem kedidelhopper wrote:

On Apr 20, 6:56 am, "Colin Horsley" <horsley-s...@westnet.com.au> wrote:
"klem kedidelhopper" <captainvideo462...@gmail.com> wrote in message

news:a5b8ddea-d0b2-40c4-b137-
f151d4146709@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than TV :
repairs. But TV's are getting so cheap now and as a consequence things
: are so slow I hate to turn anything away these days.This is a six
volt : positive ground radio out of an early 1950's Chrysler product.
Tubes : light up but vibrator will not buzz. I pulled the vibrator and
: connected the coil terminals up to six volts and it does buzz. Not :
conclusive but at the very least it tells me that six volts is not :
reaching the coil. Does anyone have a schematic for this radio, or do :
you know where I might find one? The owner just bought the car, is :
restoring it and really wants to keep it original, so he'd really like
: to have this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS

Thanks for all the info guys.I don't know for certain yet if I need a
vibrator but I do need to order a schematic. Lenny
Click to expand...
Pull the vibrator out of its case and look for welded contacts. Lots of
times they can be separated and dressed with a relay file or fine emery
nail file. Sometimes you can even bang on the vibrator and loosen the
contacts if they aren't stuck together badly. I ran across this Youtube
video some while back. It will help you immensly

http://youtu.be/Fp6PkRTmb8U



--
Live Fast Die Young, Leave A Pretty Corpse
 
On Wed, 20 Apr 2011 05:29:17 -0700 (PDT), klem kedidelhopper
<captainvideo462009@gmail.com> wrote:

On Apr 20, 6:56 am, "Colin Horsley" <horsley-s...@westnet.com.au
wrote:
"klem kedidelhopper" <captainvideo462...@gmail.com> wrote in message

news:a5b8ddea-d0b2-40c4-b137-f151d4146709@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than TV
: repairs. But TV's are getting so cheap now and as a consequence things
: are so slow I hate to turn anything away these days.This is a six volt
: positive ground radio out of an early 1950's Chrysler product. Tubes
: light up but vibrator will not buzz. I pulled the vibrator and
: connected the coil terminals up to six volts and it does buzz. Not
: conclusive but at the very least it tells me that six volts is not
: reaching the coil. Does anyone have a schematic for this radio, or do
: you know where I might find one? The owner just bought the car, is
: restoring it and really wants to keep it original, so he'd really like
: to have this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS

Thanks for all the info guys.I don't know for certain yet if I need a
vibrator but I do need to order a schematic. Lenny
Click to expand...
Did you see Spam's first post:
Do you have six dollars and fifty cents? A NOS Sams Photofact can be
yours:

http://www.smcelectronics.com/samsauto.htm

MOPAR Models: 812/813/815/816/817 AM Car Radio. - $6.50
Click to expand...
When are you going to be back on tv?
 
I think I know who might have solid state one (Antique Electronic
Supply) I built one for an old Blaupunkt 3 band radio laid out in
wavelength rather than frequency for a 73 vehicle. My replacement was
huge though. Threw it together with a few parts from. Radio Shack.
 
On Apr 20, 11:03 am, PeterD <pet...@hipson.net> wrote:
On 4/20/2011 1:55 PM, Meat Plow wrote:



On Wed, 20 Apr 2011 05:29:17 -0700, klem kedidelhopper wrote:

On Apr 20, 6:56 am, "Colin Horsley"<horsley-s...@westnet.com.au>  wrote:
"klem kedidelhopper"<captainvideo462...@gmail.com>  wrote in message

news:a5b8ddea-d0b2-40c4-b137-
f151d4146...@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than TV :
repairs. But TV's are getting so cheap now and as a consequence things
: are so slow I hate to turn anything away these days.This is a six
volt : positive ground radio out of an early 1950's Chrysler product.
Tubes : light up but vibrator will not buzz. I pulled the vibrator and
: connected the coil terminals up to six volts and it does buzz. Not :
conclusive but at the very least it tells me that six volts is not :
reaching the coil. Does anyone have a schematic for this radio, or do :
you know where I might find one? The owner just bought the car, is :
restoring it and really wants to keep it original, so he'd really like
: to have this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS

Thanks for all the info guys.I don't know for certain yet if I need a
vibrator but I do need to order a schematic. Lenny

Pull the vibrator out of its case and look for welded contacts. Lots of
times they can be separated and dressed with a relay file or fine emery
nail file. Sometimes you can even bang on the vibrator and loosen the
contacts if they aren't stuck together badly. I ran across this Youtube
video some while back. It will help you immensly

http://youtu.be/Fp6PkRTmb8U

yes, this can work. I've repaired a few over the years by disassembling
and using an auto points file on the contacts. They are usually easy to
take apart, too.
Click to expand...
Guys, the OP says his vibrator buzzes when he applies 6 volts directly
to it. That argues that the vibrator is not the problem, but that
there's an open circuit between the power supply and the vibrator.

I would suspect that either the socket contacts or the pins on the
vibrator are corroded.
 
On 4/20/2011 1:14 PM mm spake thus:

On Wed, 20 Apr 2011 05:29:17 -0700 (PDT), klem kedidelhopper
captainvideo462009@gmail.com> wrote:
Click to expand...
[stuff]

When are you going to be back on tv?
Click to expand...
Well, if that's really him, he doesn't know how to spell his own name.
It's Clem Kadiddlehopper, as anyone who ever saw Red Skelton could tell
you ...


--
The current state of literacy in our advanced civilization:

yo
wassup
nuttin
wan2 hang
k
where
here
k
l8tr
by

- from Usenet (what's *that*?)
 
On Wed, 20 Apr 2011 11:53:34 -0700, spamtrap1888 wrote:

On Apr 20, 11:03 am, PeterD <pet...@hipson.net> wrote:
On 4/20/2011 1:55 PM, Meat Plow wrote:



On Wed, 20 Apr 2011 05:29:17 -0700, klem kedidelhopper wrote:

On Apr 20, 6:56 am, "Colin Horsley"<horsley-s...@westnet.com.au
 wrote:
"klem kedidelhopper"<captainvideo462...@gmail.com>  wrote in
message

news:a5b8ddea-d0b2-40c4-b137-
f151d4146...@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than TV :
repairs. But TV's are getting so cheap now and as a consequence
things : are so slow I hate to turn anything away these days.This
is a six volt : positive ground radio out of an early 1950's
Chrysler product. Tubes : light up but vibrator will not buzz. I
pulled the vibrator and : connected the coil terminals up to six
volts and it does buzz. Not : conclusive but at the very least it
tells me that six volts is not : reaching the coil. Does anyone
have a schematic for this radio, or do : you know where I might
find one? The owner just bought the car, is : restoring it and
really wants to keep it original, so he'd really like : to have
this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS

Thanks for all the info guys.I don't know for certain yet if I need
a vibrator but I do need to order a schematic. Lenny

Pull the vibrator out of its case and look for welded contacts. Lots
of times they can be separated and dressed with a relay file or fine
emery nail file. Sometimes you can even bang on the vibrator and
loosen the contacts if they aren't stuck together badly. I ran across
this Youtube video some while back. It will help you immensly

http://youtu.be/Fp6PkRTmb8U

yes, this can work. I've repaired a few over the years by disassembling
and using an auto points file on the contacts. They are usually easy to
take apart, too.

Guys, the OP says his vibrator buzzes when he applies 6 volts directly
to it. That argues that the vibrator is not the problem, but that
there's an open circuit between the power supply and the vibrator.

I would suspect that either the socket contacts or the pins on the
vibrator are corroded.
Click to expand...
That's right, missed it. The video I posted can be used to troubleshoot
it further, the circuits are all pretty basic.




--
Live Fast Die Young, Leave A Pretty Corpse
 
On Apr 20, 6:38 pm, Meat Plow <mhywa...@yahoo.com> wrote:
On Wed, 20 Apr 2011 11:53:34 -0700, spamtrap1888 wrote:
On Apr 20, 11:03 am, PeterD <pet...@hipson.net> wrote:
On 4/20/2011 1:55 PM, Meat Plow wrote:

On Wed, 20 Apr 2011 05:29:17 -0700, klem kedidelhopper wrote:

On Apr 20, 6:56 am, "Colin Horsley"<horsley-s...@westnet.com.au
 wrote:
"klem kedidelhopper"<captainvideo462...@gmail.com>  wrote in
message

news:a5b8ddea-d0b2-40c4-b137-
f151d4146...@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than TV :
repairs. But TV's are getting so cheap now and as a consequence
things : are so slow I hate to turn anything away these days.This
is a six volt : positive ground radio out of an early 1950's
Chrysler product. Tubes : light up but vibrator will not buzz. I
pulled the vibrator and : connected the coil terminals up to six
volts and it does buzz. Not : conclusive but at the very least it
tells me that six volts is not : reaching the coil. Does anyone
have a schematic for this radio, or do : you know where I might
find one? The owner just bought the car, is : restoring it and
really wants to keep it original, so he'd really like : to have
this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS

Thanks for all the info guys.I don't know for certain yet if I need
a vibrator but I do need to order a schematic. Lenny

Pull the vibrator out of its case and look for welded contacts. Lots
of times they can be separated and dressed with a relay file or fine
emery nail file. Sometimes you can even bang on the vibrator and
loosen the contacts if they aren't stuck together badly. I ran across
this Youtube video some while back. It will help you immensly

http://youtu.be/Fp6PkRTmb8U

yes, this can work. I've repaired a few over the years by disassembling
and using an auto points file on the contacts. They are usually easy to
take apart, too.

Guys, the OP says his vibrator buzzes when he applies 6 volts directly
to it. That argues that the vibrator is not the problem, but that
there's an open circuit between the power supply and the vibrator.

I would suspect that either the socket contacts or the pins on the
vibrator are corroded.

That's right, missed it. The video I posted can be used to troubleshoot
it further, the circuits are all pretty basic.

--
Live Fast Die Young, Leave A Pretty Corpse
Click to expand...
Thanks everyone for the response I
just came home from the hospital after having my hip replaced so I've
been away from my repairs and this group for a few days. Lucky my shop
is in my home so when I do feel like it I can try to get back to work.
I did get the Sams from a guy in another group and I also got the
vibrator to vibrate and the radio to work somewhat
before I left. Possibly it was the rapping on the can that started it
up. I also had some buzzing in the speaker and bridged an electrolytic
across one of the terminals of the three section cap in the radio
which improved it. So I'll replace that and possibly cut the vibrator
open when I feel better. I remember doing that MANY years ago. Wow
this thing draws 6.50 amps at 6,0 volts! I guess it HAS been a long
time....Lenny
-
BTW thanks Meat Plow for the redirect to the video. It was a real good
review.
 
Meat Plow wrote:
On Sat, 23 Apr 2011 15:49:06 -0700, klem kedidelhopper wrote:

On Apr 20, 6:38Â pm, Meat Plow <mhywa...@yahoo.com> wrote:
On Wed, 20 Apr 2011 11:53:34 -0700, spamtrap1888 wrote:
On Apr 20, 11:03Â am, PeterD <pet...@hipson.net> wrote:
On 4/20/2011 1:55 PM, Meat Plow wrote:

On Wed, 20 Apr 2011 05:29:17 -0700, klem kedidelhopper wrote:

On Apr 20, 6:56 am, "Colin Horsley"<horsley-s...@westnet.com.au
 wrote:
"klem kedidelhopper"<captainvideo462...@gmail.com> Â wrote in
message

news:a5b8ddea-d0b2-40c4-b137-
f151d4146...@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than
TV : repairs. But TV's are getting so cheap now and as a
consequence things : are so slow I hate to turn anything away
these days.This is a six volt : positive ground radio out of an
early 1950's Chrysler product. Tubes : light up but vibrator
will not buzz. I pulled the vibrator and : connected the coil
terminals up to six volts and it does buzz. Not : conclusive but
at the very least it tells me that six volts is not : reaching
the coil. Does anyone have a schematic for this radio, or do :
you know where I might find one? The owner just bought the car,
is : restoring it and really wants to keep it original, so he'd
really like : to have this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS

Thanks for all the info guys.I don't know for certain yet if I
need a vibrator but I do need to order a schematic. Lenny

Pull the vibrator out of its case and look for welded contacts.
Lots of times they can be separated and dressed with a relay file
or fine emery nail file. Sometimes you can even bang on the
vibrator and loosen the contacts if they aren't stuck together
badly. I ran across this Youtube video some while back. It will
help you immensly

http://youtu.be/Fp6PkRTmb8U

yes, this can work. I've repaired a few over the years by
disassembling and using an auto points file on the contacts. They
are usually easy to take apart, too.

Guys, the OP says his vibrator buzzes when he applies 6 volts
directly to it. That argues that the vibrator is not the problem, but
that there's an open circuit between the power supply and the
vibrator.

I would suspect that either the socket contacts or the pins on the
vibrator are corroded.

That's right, missed it. The video I posted can be used to troubleshoot
it further, the circuits are all pretty basic.

--
Live Fast Die Young, Leave A Pretty Corpse

Thanks everyone for the response I
just came home from the hospital after having my hip replaced so I've
been away from my repairs and this group for a few days. Lucky my shop
is in my home so when I do feel like it I can try to get back to work. I
did get the Sams from a guy in another group and I also got the vibrator
to vibrate and the radio to work somewhat before I left. Possibly it was
the rapping on the can that started it up. I also had some buzzing in
the speaker and bridged an electrolytic across one of the terminals of
the three section cap in the radio which improved it. So I'll replace
that and possibly cut the vibrator open when I feel better. I remember
doing that MANY years ago. Wow this thing draws 6.50 amps at 6,0 volts!
I guess it HAS been a long time....Lenny
-
BTW thanks Meat Plow for the redirect to the video. It was a real good
review.

Make sure those suppressor caps on the vibrator are changed. Very
important not only for the life of the reed switches but also to suppress
EMI-RFI. Start with those and the power supply. Remember it's 6 volts so
it's going to appear to draw an unusual amount of current over a 12 volt
tube radio. Once you get the voltages up to snuff you may want to tweak
the receiver by disabling the 455khz osc (that thing should have a
superhet receiver) and insert a modulated tone signal of 455khz at the
(guessing here) G2 pin of the first tube in the line through an .01 cap.
Then a voltmeter at the output. Start with a minimum reading on the VM
then adjust the caps and IF cans for max. Need a plastic hex tool for the
cans they have two slugs, one for the in and one for the out. Just some
tips to spruce up that old goat.

I've worked on my fair share of them back when you still found them on
cars driven every day.
Click to expand...

A lot of old car radios used a 262.5 KHz IF to prevent image problems
at 910 KHz. 262.5 KHz puts them all out of band.


--
You can't fix stupid. You can't even put a Band-Aid™ on it, because it's
Teflon coated.
 
On Sat, 23 Apr 2011 15:49:06 -0700, klem kedidelhopper wrote:

On Apr 20, 6:38 pm, Meat Plow <mhywa...@yahoo.com> wrote:
On Wed, 20 Apr 2011 11:53:34 -0700, spamtrap1888 wrote:
On Apr 20, 11:03 am, PeterD <pet...@hipson.net> wrote:
On 4/20/2011 1:55 PM, Meat Plow wrote:

On Wed, 20 Apr 2011 05:29:17 -0700, klem kedidelhopper wrote:

On Apr 20, 6:56 am, "Colin Horsley"<horsley-s...@westnet.com.au
 wrote:
"klem kedidelhopper"<captainvideo462...@gmail.com>  wrote in
message

news:a5b8ddea-d0b2-40c4-b137-
f151d4146...@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other than
TV : repairs. But TV's are getting so cheap now and as a
consequence things : are so slow I hate to turn anything away
these days.This is a six volt : positive ground radio out of an
early 1950's Chrysler product. Tubes : light up but vibrator
will not buzz. I pulled the vibrator and : connected the coil
terminals up to six volts and it does buzz. Not : conclusive but
at the very least it tells me that six volts is not : reaching
the coil. Does anyone have a schematic for this radio, or do :
you know where I might find one? The owner just bought the car,
is : restoring it and really wants to keep it original, so he'd
really like : to have this radio working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS

Thanks for all the info guys.I don't know for certain yet if I
need a vibrator but I do need to order a schematic. Lenny

Pull the vibrator out of its case and look for welded contacts.
Lots of times they can be separated and dressed with a relay file
or fine emery nail file. Sometimes you can even bang on the
vibrator and loosen the contacts if they aren't stuck together
badly. I ran across this Youtube video some while back. It will
help you immensly

http://youtu.be/Fp6PkRTmb8U

yes, this can work. I've repaired a few over the years by
disassembling and using an auto points file on the contacts. They
are usually easy to take apart, too.

Guys, the OP says his vibrator buzzes when he applies 6 volts
directly to it. That argues that the vibrator is not the problem, but
that there's an open circuit between the power supply and the
vibrator.

I would suspect that either the socket contacts or the pins on the
vibrator are corroded.

That's right, missed it. The video I posted can be used to troubleshoot
it further, the circuits are all pretty basic.

--
Live Fast Die Young, Leave A Pretty Corpse

Thanks everyone for the response I
just came home from the hospital after having my hip replaced so I've
been away from my repairs and this group for a few days. Lucky my shop
is in my home so when I do feel like it I can try to get back to work. I
did get the Sams from a guy in another group and I also got the vibrator
to vibrate and the radio to work somewhat before I left. Possibly it was
the rapping on the can that started it up. I also had some buzzing in
the speaker and bridged an electrolytic across one of the terminals of
the three section cap in the radio which improved it. So I'll replace
that and possibly cut the vibrator open when I feel better. I remember
doing that MANY years ago. Wow this thing draws 6.50 amps at 6,0 volts!
I guess it HAS been a long time....Lenny
-
BTW thanks Meat Plow for the redirect to the video. It was a real good
review.
Click to expand...
Make sure those suppressor caps on the vibrator are changed. Very
important not only for the life of the reed switches but also to suppress
EMI-RFI. Start with those and the power supply. Remember it's 6 volts so
it's going to appear to draw an unusual amount of current over a 12 volt
tube radio. Once you get the voltages up to snuff you may want to tweak
the receiver by disabling the 455khz osc (that thing should have a
superhet receiver) and insert a modulated tone signal of 455khz at the
(guessing here) G2 pin of the first tube in the line through an .01 cap.
Then a voltmeter at the output. Start with a minimum reading on the VM
then adjust the caps and IF cans for max. Need a plastic hex tool for the
cans they have two slugs, one for the in and one for the out. Just some
tips to spruce up that old goat.

I've worked on my fair share of them back when you still found them on
cars driven every day.

Hope the hip job went well. I've seen one of those done and in this
video, they split you open like a pig for a roast. Hope I don't go
through that although I had a month of therapy on my right hip last June.
Found out a have lost about 50% of the range of motion for both. Doing
some stretching exercises now trying to get some of that back.




--
Live Fast Die Young, Leave A Pretty Corpse
 
On Apr 23, 3:49 pm, klem kedidelhopper <captainvideo462...@gmail.com>
wrote:

I did get the Sams from a guy in another group and I also got the
vibrator to vibrate and the radio to work somewhat
before I left. Possibly it was the rapping on the can that started it
up. I also had some buzzing in the speaker and bridged an electrolytic
across one of the terminals of the three section cap in the radio
which improved it. So I'll replace that and possibly cut the vibrator
open when I feel better. I remember doing that MANY years ago.
Click to expand...
My buddy who restores prewar radios replaces all the caps as a matter
of course. I wonder if that's a good idea for 50s radios as well.

Wow
this thing draws 6.50 amps at 6,0 volts! I guess it HAS been a long
time....Lenny
Click to expand...
This clarifies a mystery for me. My mother once let slip she ran down
the car battery by listening to the radio when my parents were parking
during their courtship.
 
On Sun, 24 Apr 2011 15:23:00 -0400, Michael A. Terrell wrote:

Meat Plow wrote:

On Sat, 23 Apr 2011 15:49:06 -0700, klem kedidelhopper wrote:

On Apr 20, 6:38Â pm, Meat Plow <mhywa...@yahoo.com> wrote:
On Wed, 20 Apr 2011 11:53:34 -0700, spamtrap1888 wrote:
On Apr 20, 11:03Â am, PeterD <pet...@hipson.net> wrote:
On 4/20/2011 1:55 PM, Meat Plow wrote:

On Wed, 20 Apr 2011 05:29:17 -0700, klem kedidelhopper wrote:

On Apr 20, 6:56 am, "Colin
Horsley"<horsley-s...@westnet.com.au> Â wrote:
"klem kedidelhopper"<captainvideo462...@gmail.com> Â wrote in
message

news:a5b8ddea-d0b2-40c4-b137-
f151d4146...@r6g2000vbz.googlegroups.com...
: It seems like everything coming in here lately is other
than TV : repairs. But TV's are getting so cheap now and as a
consequence things : are so slow I hate to turn anything away
these days.This is a six volt : positive ground radio out of
an early 1950's Chrysler product. Tubes : light up but
vibrator will not buzz. I pulled the vibrator and : connected
the coil terminals up to six volts and it does buzz. Not :
conclusive but at the very least it tells me that six volts
is not : reaching the coil. Does anyone have a schematic for
this radio, or do : you know where I might find one? The
owner just bought the car, is : restoring it and really wants
to keep it original, so he'd really like : to have this radio
working. Thanks, Lenny

Look here for your vibrator:-

http://www.radiosforoldcars.com/vibrators.htm

Colin in AUS

Thanks for all the info guys.I don't know for certain yet if I
need a vibrator but I do need to order a schematic. Lenny

Pull the vibrator out of its case and look for welded contacts.
Lots of times they can be separated and dressed with a relay
file or fine emery nail file. Sometimes you can even bang on
the vibrator and loosen the contacts if they aren't stuck
together badly. I ran across this Youtube video some while
back. It will help you immensly

http://youtu.be/Fp6PkRTmb8U

yes, this can work. I've repaired a few over the years by
disassembling and using an auto points file on the contacts. They
are usually easy to take apart, too.

Guys, the OP says his vibrator buzzes when he applies 6 volts
directly to it. That argues that the vibrator is not the problem,
but that there's an open circuit between the power supply and the
vibrator.

I would suspect that either the socket contacts or the pins on the
vibrator are corroded.

That's right, missed it. The video I posted can be used to
troubleshoot it further, the circuits are all pretty basic.

--
Live Fast Die Young, Leave A Pretty Corpse

Thanks everyone for the response I
just came home from the hospital after having my hip replaced so I've
been away from my repairs and this group for a few days. Lucky my
shop is in my home so when I do feel like it I can try to get back to
work. I did get the Sams from a guy in another group and I also got
the vibrator to vibrate and the radio to work somewhat before I left.
Possibly it was the rapping on the can that started it up. I also had
some buzzing in the speaker and bridged an electrolytic across one of
the terminals of the three section cap in the radio which improved
it. So I'll replace that and possibly cut the vibrator open when I
feel better. I remember doing that MANY years ago. Wow this thing
draws 6.50 amps at 6,0 volts! I guess it HAS been a long
time....Lenny -
BTW thanks Meat Plow for the redirect to the video. It was a real
good review.

Make sure those suppressor caps on the vibrator are changed. Very
important not only for the life of the reed switches but also to
suppress EMI-RFI. Start with those and the power supply. Remember it's
6 volts so it's going to appear to draw an unusual amount of current
over a 12 volt tube radio. Once you get the voltages up to snuff you
may want to tweak the receiver by disabling the 455khz osc (that thing
should have a superhet receiver) and insert a modulated tone signal of
455khz at the (guessing here) G2 pin of the first tube in the line
through an .01 cap. Then a voltmeter at the output. Start with a
minimum reading on the VM then adjust the caps and IF cans for max.
Need a plastic hex tool for the cans they have two slugs, one for the
in and one for the out. Just some tips to spruce up that old goat.

I've worked on my fair share of them back when you still found them on
cars driven every day.


A lot of old car radios used a 262.5 KHz IF to prevent image problems
at 910 KHz. 262.5 KHz puts them all out of band.
Click to expand...
Old being before what year? I was just a young pup learning back in the
70's so I don't recall a 262 IF. Probably too much LSD later on.




--
Live Fast Die Young, Leave A Pretty Corpse
 
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