Toshiba TV29C90 problem; Image fades to black...

In article <1151715911.770930.162610@b68g2000cwa.googlegroups.com>,
"Michael (Mickey) Sattler" <got.kilt@gmail.com> wrote:

On behalf of a non-profit public service group I'm trying to adapt
military surplus Astrocom helicopter headsets to civilian uses, to be
used by ham radio users with Kenwood and Motorola handheld
transceivers.

To that end I believe what I need to do is get some U-94A/U plugs (with
built-in PTT) and the appropriate adapter (i.e. the Kenwood E11-0420-15
mic jack), figure out which wire is which, and solder away. I don't
believe that I need any capacitor with the PTT switch, but if you know
better I'd love to hear all about it.

I'm having trouble sourcing the U-94A/U, so I'd like some help on that
too.
Click to expand...
Mickey-

Check out the Astrocom website at
http://www.astrocom-electronics.com/

They have a downloadable catalog, but it is 23 MB. You might send them an
eMail explaining your project, and ask for technical information about
your particular headsets.

If the headsets can be used, you may want to just wire new connectors on
them, and not worry about adapters. The U-94 connectors might cost more
than you think!

Fred
 
On behalf of a non-profit public service group I'm trying to adapt
military surplus Astrocom helicopter headsets to civilian uses, to be
used by ham radio users with Kenwood and Motorola handheld
transceivers.
Ditto the previous comment on impedance mismatch. Ham/LMR HTs are
Click to expand...
8-16 ohm speaker impedance, vs typical 600 for aviation headsets.

I played with an old British aviation headset once, setting it up for
a Yaesu ham HT...the audio was useable but very tinny driving 600 ohms
directly. Would have been better with a 600-8 ohm transformer. The
mic element audio was way too low to be useable and I ended up
strapping an electret element to the original mic...worked OK, but of
course it was no longer noise cancelling and was way too sensitive.

However, yours being old military heli sets, they may be lower
impedance.(?) First of all I would try ONE headset with the speaker
& mic audios mocked up to the right connectors for the HTs. I would
plan on cutting off the existing heli plug and wiring thru a tiny box
to hold a PTT switch, and any matching network you may need.

Or...sell the headsets on ebay and buy what you really need...!

--Don
Don Byrer
Radar Tech & Smilin' Commercial Pilot Guy
Amateur Radio KJ5KB
kj5kb-at-hotmail.com

"I have slipped the surly bonds of earth; now if I can just land without bending the gear..."
"Watch out for those doves...<smack-smack-smack-smack...>"
 
"Don Byrer" <kj5kb@hotmail.com> wrote in message
news:pq8ha252gv46s0ucmrj4v0ud773heu0ncs@4ax.com...
On behalf of a non-profit public service group I'm trying to adapt
military surplus Astrocom helicopter headsets to civilian uses, to be
used by ham radio users with Kenwood and Motorola handheld
transceivers.
Ditto the previous comment on impedance mismatch. Ham/LMR HTs are
8-16 ohm speaker impedance, vs typical 600 for aviation headsets.

I played with an old British aviation headset once, setting it up for
a Yaesu ham HT...the audio was useable but very tinny driving 600 ohms
directly. Would have been better with a 600-8 ohm transformer. The
mic element audio was way too low to be useable and I ended up
strapping an electret element to the original mic...worked OK, but of
course it was no longer noise cancelling and was way too sensitive.

However, yours being old military heli sets, they may be lower
impedance.(?) First of all I would try ONE headset with the speaker
& mic audios mocked up to the right connectors for the HTs. I would
plan on cutting off the existing heli plug and wiring thru a tiny box
to hold a PTT switch, and any matching network you may need.

Nope, 600-ohm was the standard when I was a radio operator for Uncle
Click to expand...
Sam's Misguided Children back in 195....., well, long enough for them to be
considered "old" even if'n I'm not.
 
ya you have a problem alright ... your stuck in fantasy land .....

where do you fuck twigs come from ? jeeezus





<diplome333@hotmail.com> wrote in message
news:1151969341.764185.189670@p79g2000cwp.googlegroups.com...
hi !

I have a problem.... i don't understand...help me please !!!
http://www.animals-superstars.com/photo-109260.html

Tank you

Patate069
Click to expand...
 
On Wed, 5 Jul 2006 12:37:07 -0400, johnreynolds2222@yahoo.com wrote
(in article <1152117427.101542.289290@b68g2000cwa.googlegroups.com>):

Coulter is at best a bitchy troll, and as all us internet folks
know, the real suckers are those who respond to trolls.
Click to expand...
Um, then that would be you.

--
Nelson
 
Bob Parker wrote:
On 1 Jul 2006 20:31:36 -0700, "Ken Layton" <KLayton888@aol.com> wrote:

Reported to Google.

The problem is that Google does absolutely nothing about newsgroup
spammers... that's why the spammers post through Google in the first
place.
Thanks for trying, anyway.
Click to expand...
Report it to the ISP: abuse@tmn.pt
--
My sig file can beat up your sig file!
 
Coulter is at best a bitchy troll, and as all us internet folks
know, the real suckers are those who respond to trolls.

Um, then that would be you.

--
Nelson
Click to expand...
Um, and you.

byt
 
Michael (Mickey) Sattler wrote:

Help please.

On behalf of a non-profit public service group I'm trying to adapt
military surplus Astrocom helicopter headsets to civilian uses, to be
used by ham radio users with Kenwood and Motorola handheld
transceivers.

To that end I believe what I need to do is get some U-94A/U plugs (with
built-in PTT) and the appropriate adapter (i.e. the Kenwood E11-0420-15
mic jack), figure out which wire is which, and solder away. I don't
believe that I need any capacitor with the PTT switch, but if you know
better I'd love to hear all about it.

I'm having trouble sourcing the U-94A/U, so I'd like some help on that
too.

Many thanks from all of you,

Mickey

Mickey,
Click to expand...
Back in the olden days, I was a Comm Tech in the USAF. One of my
accomplishments was designing a mod for C-12 aircraft (Civilian Beech
Queen Air), which used the non-mil Headset/Microphones. The aircrews
wanted to use H-157 Headset ($57.00, and available on every USAF base in
the world) instead of special order David Clark Headsets at a cost of
over $300.00 at that time. There is a audio transformer that was
specified in one of the radio test sets to do just what you want. It
even was pre-wired with a U-92/U on one end. You would need to add the
connectors for H/S and Mic to the attached cable. The transformer is
MX-!#^*%/ARC. This worked great for the crews, and I was awarded a
substantial sum for the suggestion/proposal. The aircrews did not
want/need the PTT feature you are wanting. I will search through my
papers for the exact part number of the transformer. FYI, the
transformer is housed in a cylindrical can about 1.5" by 4" with 2
cables attached, one cable has a U-92A/U attached, the other has no
termination.

KenG
 
KENG wrote:
Michael (Mickey) Sattler wrote:

Help please.

On behalf of a non-profit public service group I'm trying to adapt
military surplus Astrocom helicopter headsets to civilian uses, to be
used by ham radio users with Kenwood and Motorola handheld
transceivers.

To that end I believe what I need to do is get some U-94A/U plugs (with
built-in PTT) and the appropriate adapter (i.e. the Kenwood E11-0420-15
mic jack), figure out which wire is which, and solder away. I don't
believe that I need any capacitor with the PTT switch, but if you know
better I'd love to hear all about it.

I'm having trouble sourcing the U-94A/U, so I'd like some help on that
too.

Many thanks from all of you,

Mickey

Mickey,
Back in the olden days, I was a Comm Tech in the USAF. One of my
accomplishments was designing a mod for C-12 aircraft (Civilian Beech
Queen Air), which used the non-mil Headset/Microphones. The aircrews
wanted to use H-157 Headset ($57.00, and available on every USAF base in
the world) instead of special order David Clark Headsets at a cost of
over $300.00 at that time. There is a audio transformer that was
specified in one of the radio test sets to do just what you want. It
even was pre-wired with a U-92/U on one end. You would need to add the
connectors for H/S and Mic to the attached cable. The transformer is
MX-!#^*%/ARC. This worked great for the crews, and I was awarded a
substantial sum for the suggestion/proposal. The aircrews did not
want/need the PTT feature you are wanting. I will search through my
papers for the exact part number of the transformer. FYI, the
transformer is housed in a cylindrical can about 1.5" by 4" with 2
cables attached, one cable has a U-92A/U attached, the other has no
termination.

KenG
Mickey,
Click to expand...
As a followup to this post, the adapter/transformer is MX-1646/AIC.
Link To Specs
http://www.dscc.dla.mil/Downloads/MilSpec/Docs/MIL-DTL-8416/dtl8416.pdf

KenG
 
KENG wrote:

KENG wrote:

Michael (Mickey) Sattler wrote:

Help please.

On behalf of a non-profit public service group I'm trying to adapt
military surplus Astrocom helicopter headsets to civilian uses, to be
used by ham radio users with Kenwood and Motorola handheld
transceivers.

To that end I believe what I need to do is get some U-94A/U plugs (with
built-in PTT) and the appropriate adapter (i.e. the Kenwood E11-0420-15
mic jack), figure out which wire is which, and solder away. I don't
believe that I need any capacitor with the PTT switch, but if you know
better I'd love to hear all about it.

I'm having trouble sourcing the U-94A/U, so I'd like some help on that
too.

Many thanks from all of you,

Mickey

Mickey,
Back in the olden days, I was a Comm Tech in the USAF. One of my
accomplishments was designing a mod for C-12 aircraft (Civilian Beech
Queen Air), which used the non-mil Headset/Microphones. The aircrews
wanted to use H-157 Headset ($57.00, and available on every USAF base
in the world) instead of special order David Clark Headsets at a cost
of over $300.00 at that time. There is a audio transformer that was
specified in one of the radio test sets to do just what you want. It
even was pre-wired with a U-92/U on one end. You would need to add
the connectors for H/S and Mic to the attached cable. The
transformer is MX-!#^*%/ARC. This worked great for the crews, and I
was awarded a substantial sum for the suggestion/proposal. The
aircrews did not want/need the PTT feature you are wanting. I will
search through my papers for the exact part number of the
transformer. FYI, the transformer is housed in a cylindrical can
about 1.5" by 4" with 2 cables attached, one cable has a U-92A/U
attached, the other has no termination.

KenG

Mickey,
As a followup to this post, the adapter/transformer is MX-1646/AIC.
Link To Specs
http://www.dscc.dla.mil/Downloads/MilSpec/Docs/MIL-DTL-8416/dtl8416.pdf
Click to expand...
One for sale here...
http://www.bpbsurplus.com/lc/cart.php?target=product&product_id=16496&category_id=296

KenG
Click to expand...
 
KENG wrote:
Michael (Mickey) Sattler wrote:

Help please.

On behalf of a non-profit public service group I'm trying to adapt
military surplus Astrocom helicopter headsets to civilian uses, to be
used by ham radio users with Kenwood and Motorola handheld
transceivers.

To that end I believe what I need to do is get some U-94A/U plugs (with
built-in PTT) and the appropriate adapter (i.e. the Kenwood E11-0420-15
mic jack), figure out which wire is which, and solder away. I don't
believe that I need any capacitor with the PTT switch, but if you know
better I'd love to hear all about it.

I'm having trouble sourcing the U-94A/U, so I'd like some help on that
too.

Many thanks from all of you,

Mickey

Mickey,
Back in the olden days, I was a Comm Tech in the USAF. One of my
accomplishments was designing a mod for C-12 aircraft (Civilian Beech
Queen Air), which used the non-mil Headset/Microphones. The aircrews
wanted to use H-157 Headset ($57.00, and available on every USAF base in
the world) instead of special order David Clark Headsets at a cost of
over $300.00 at that time. There is a audio transformer that was
specified in one of the radio test sets to do just what you want. It
even was pre-wired with a U-92/U on one end. You would need to add the
connectors for H/S and Mic to the attached cable. The transformer is
MX-!#^*%/ARC. This worked great for the crews, and I was awarded a
substantial sum for the suggestion/proposal. The aircrews did not
want/need the PTT feature you are wanting. I will search through my
papers for the exact part number of the transformer. FYI, the
transformer is housed in a cylindrical can about 1.5" by 4" with 2
cables attached, one cable has a U-92A/U attached, the other has no
termination.

KenG
Mickey
Click to expand...
Mickey,
As a followup to this post, the adapter/transformer is MX-1646/AIC.
Link To Specs
http://www.dscc.dla.mil/Downloads/MilSpec/Docs/MIL-DTL-8416/dtl8416.pdf

Here's one for sale:
http://www.bpbsurplus.com/lc/cart.php?target=product&product_id=16496&category_id=296
KenG
 
Mickey,
As a followup to this post, the adapter/transformer is MX-1646/AIC.
Link To Specs
http://www.dscc.dla.mil/Downloads/MilSpec/Docs/MIL-DTL-8416/dtl8416.pdf

One for sale here...
http://www.bpbsurplus.com/lc/cart.php?target=product&product_id=16496&category_id=296


KenG
 
"http://4onemillion.blogspot.com/" wrote:


Spam. Report it with full headers to: abuse@ish.de


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
hello Friends,
I have the same problem with an identically television.( chassis
11AAK30A4)
I think to change the IC MC44608P40. Do you remember the solution of the
problem?
 
"CAINE" <bb69@epix.net> wrote in news:1152878967.518460.192880@
35g2000cwc.googlegroups.com:

http://search.ebay.com/_W0QQfgtpZ1QQfrppZ25QQsassZ66fourdoor

CONCORD QUADRAPHONIC/STEREO 8-TRACK DECK-AC MOTOR-testd - $24.99
Not specified 2d 13h 58m
[snip]
Click to expand...
Try news:rec.antiques.radio+phono
 
Jim Land wrote:
Try news:rec.antiques.radio+phono
Click to expand...

He already spams that group enough, thank you.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
money maker wrote:

Spam, ponzi sceme. Report with full headers to:
postmaster@cdpdspco.org & cc groups-abuse@google.com


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
Service Provider Corporation in New Jersey.
(215) 489-7599

helpdesk @ wdspco.org
 
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