PRC as a amplifier in GPS question.

[Jason James]

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f161303$0$20081$afc38c87@news.optusnet.com.au...

"John Mackesy" <mack@melbpc.org.au> wrote in message
news:bf3les$ksq$1@possum.melbpc.org.au...

Looks like a single-ended valve-type output transformer with
multi-tapped
secondary - marked '2624.' I'd like to know what its characteristics
are,
if
anyone has any old A & R data sheets around.


** You could always measure it.

Do a 400 Hz sine wave test to get the turns ratio to the full
secondary - square the result and multiply by 15 to get the primary Z.
The DC current handling *is* a bit more work.



........... Phil

Wouldn't he be better to know which load Z he's going to use rather than
mult by 15? Or is a 15 ohm load the standard for expressing primary Z?

Jason

 

[KLR]

On Thu, 17 Jul 2003 10:36:55 +1000, "Rod Speed" <rod_speed@yahoo.com>
wrote:

KLR <kreed@bigpond.net.au> wrote in message
news:iopbhvkmvtf407iocduk4fd9rlkmehi6gu@4ax.com...
Rod Speed <rod_speed@yahoo.com> wrote
Bob Parker <bobp@bluebottle.com> wrote
Rod Speed <rod_speed@yahoo.com> wrote

That cat is obviously an alien too.

Maybe, but at least it doesn't have flashing
green eyes like that mongrel yapping dog.

It does have one hell of a 'why dont you go and fuck yourself' glare tho |-)

That just proves that she is a normal, healthy cat.

None of the neighbours cats have anything like that glare.

Looks like its a Norwegian forest cat (or pretty close to it)- same as

mine. He gets that look too sometimes in pics but is a very kind cat
and have never seen him viscious (except one time when a neighbours
dog entered the workshop and picked a fight) to anyone. I think it
goes with the breed..

And that at that moment was NOT hungry too.

That cat looks like it would just start ripping
strips off your leg if it was feeling a tad peckish.

 

[McBarry]

That's what I was thinking too..

my old Farnell cat lists a couple, and I was considering a trial ans see
what eventuated.

Thanks for the reply trhough,

DB

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f1675bf$0$26535$afc38c87@news.optusnet.com.au...

"McBarry" <McBarry@Swiftdsl.com.au> wrote in message
news:3f167239$0$6693$41ce378f@news.swiftel.com.au...

Hi,
am repairing a CANON Bubblejet printer (BJC40OJ)
Diac right after the AC connector to main board cooked - marked as part
X001
on ther board

Markings are:

471

E 45

in front of the 45 is a symbol like an E but it has about 8 horizontal
lines
instead of the 3 which an "E" has..

Can anyone ID it for me so I can get another one??



** Even if it was identified buying **one** somewhere could be a big
problem.

Diacs are rare these days and Farnell list only two similar ones in
their catalogue for less than $1 each.

You could take a punt on one of them.



........... Phil

 

[Angelo Sartore]

Try:
Wes Components in NSW,
Radio Parts in North Melbourne or Malvern
Angelo Sartore

Melbourne
AUSTRALIA

ADOPT, ADAPT, INVENT, DESTROY !

"Data888" <kcinSPAMBLOCK@bigfoot.com.au> wrote in message
news:3F153CB6.4040708@bigfoot.com.au...

No, I don't want a F connector. I want the standard 75ohm connector to
plug into VCRs & TVs and stuff, but I can only find ones that screw onto
the cable. I want crimp ones.

Nick



Data888 wrote:
Hi.
Does anyone know where in Melbourne (preferably near the city) that
sells crimp type PAL TV line plugs & sockets like Foxtel installers use?
I have found a few mailorder places online, but I don't really want to
mailorder a few plugs...

Nick

 

[Dave Horsfall]

On Fri, 18 Jul 2003, Rod Speed wrote:

but is a very kind cat and have never seen him viscious

Not even after rolling in golden syrup/sump oil ?

My brother used to keep car bits etc in the back yard, and one day I found
one of my kittens trying to climb out of a tin of old sump oil.

I nearly killed the bastard (the brother, that is) but the kitty scrubbed
up OK with lots of soap and water (I knew that kero would burn the skin).

-- Dave

 

[Rod Speed]

Dave Horsfall <daveh@ci.com.au> wrote in message
news:20030718133553.A6177@mippet.ci.com.au...

Rod Speed wrote

but is a very kind cat and have never seen him viscious

Not even after rolling in golden syrup/sump oil ?

My brother used to keep car bits etc in the back yard, and one day
I found one of my kittens trying to climb out of a tin of old sump oil.

Very viscious indeed.

I nearly killed the bastard (the brother, that is)
but the kitty scrubbed up OK with lots of soap
and water (I knew that kero would burn the skin).

Did you encourage it to savage your bastard ?

 

[Jason James]

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f17343e$0$1212$afc38c87@news.optusnet.com.au...

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:LXBRa.984$OM3.195@news-server.bigpond.net.au...

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f161303$0$20081$afc38c87@news.optusnet.com.au...


** You could always measure it.

Do a 400 Hz sine wave test to get the turns ratio to the
full
secondary - square the result and multiply by 15 to get the primary
Z.
The DC current handling *is* a bit more work.



........... Phil


Wouldn't he be better to know which load Z he's going to use rather than
mult by 15? Or is a 15 ohm load the standard for expressing primary Z?


** The "full secondary " on an A&R multitap tranny is rated for a 15
ohm load.

............. Phil

Assuming it's not a valve output tranny then.. Class A or B valve outputs
are not likely to be running 15 ohm spkrs.

Jason

 

[KLR]

On Fri, 18 Jul 2003 13:39:57 +1000, Dave Horsfall <daveh@ci.com.au>
wrote:

On Fri, 18 Jul 2003, Rod Speed wrote:

but is a very kind cat and have never seen him viscious

Not even after rolling in golden syrup/sump oil ?

My brother used to keep car bits etc in the back yard, and one day I found
one of my kittens trying to climb out of a tin of old sump oil.

I nearly killed the bastard (the brother, that is) but the kitty scrubbed
up OK with lots of soap and water (I knew that kero would burn the skin).

-- Dave

Poor Kitten.

Im always careful about what I ever put on cats and kittens as they
will lick it off - they are going to swallow it.

Glad to hear that the kitten was all right. They are very tough
little creatures though.

 

[Phil Allison]

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:vXURa.2699$OM3.1635@news-server.bigpond.net.au...

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f17343e$0$1212$afc38c87@news.optusnet.com.au...

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:LXBRa.984$OM3.195@news-server.bigpond.net.au...

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f161303$0$20081$afc38c87@news.optusnet.com.au...


** You could always measure it.

Do a 400 Hz sine wave test to get the turns ratio to the
full
secondary - square the result and multiply by 15 to get the
primary
Z.
The DC current handling *is* a bit more work.



........... Phil


Wouldn't he be better to know which load Z he's going to use rather
than
mult by 15? Or is a 15 ohm load the standard for expressing primary Z?


** The "full secondary " on an A&R multitap tranny is rated for a
15
ohm load.

............. Phil


Assuming it's not a valve output tranny then..

** It is a valve output trannny.



Class A or B valve outputs

are not likely to be running 15 ohm spkrs.

** They were circa 1964 when that tranny was made.



............... Phil

 

[Jason James]

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f18883f$0$11109$afc38c87@news.optusnet.com.au...

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:vXURa.2699$OM3.1635@news-server.bigpond.net.au...

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f17343e$0$1212$afc38c87@news.optusnet.com.au...

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:LXBRa.984$OM3.195@news-server.bigpond.net.au...

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f161303$0$20081$afc38c87@news.optusnet.com.au...


** You could always measure it.

Do a 400 Hz sine wave test to get the turns ratio to the
full
secondary - square the result and multiply by 15 to get the
primary
Z.
The DC current handling *is* a bit more work.



........... Phil


Wouldn't he be better to know which load Z he's going to use rather
than
mult by 15? Or is a 15 ohm load the standard for expressing primary
Z?


** The "full secondary " on an A&R multitap tranny is rated for a
15
ohm load.

............. Phil


Assuming it's not a valve output tranny then..


** It is a valve output trannny.



Class A or B valve outputs
are not likely to be running 15 ohm spkrs.


** They were circa 1964 when that tranny was made.

.............. Phil

Maybe as part of a cross over bass spkr or something, but as a 'mantle
radio' no.

Jason

 

[KLR]

On Sat, 19 Jul 2003 00:10:20 GMT, "Jason James"
<stratosphere2@bigpond.com> wrote:

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f18883f$0$11109$afc38c87@news.optusnet.com.au...

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:vXURa.2699$OM3.1635@news-server.bigpond.net.au...

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f17343e$0$1212$afc38c87@news.optusnet.com.au...

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:LXBRa.984$OM3.195@news-server.bigpond.net.au...

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f161303$0$20081$afc38c87@news.optusnet.com.au...


** You could always measure it.

Do a 400 Hz sine wave test to get the turns ratio to the
full
secondary - square the result and multiply by 15 to get the
primary
Z.
The DC current handling *is* a bit more work.



........... Phil


Wouldn't he be better to know which load Z he's going to use rather
than
mult by 15? Or is a 15 ohm load the standard for expressing primary
Z?


** The "full secondary " on an A&R multitap tranny is rated for a
15
ohm load.

............. Phil


Assuming it's not a valve output tranny then..


** It is a valve output trannny.



Class A or B valve outputs
are not likely to be running 15 ohm spkrs.

not directly no - but through a speaker transformer

** They were circa 1964 when that tranny was made.

.............. Phil

Maybe as part of a cross over bass spkr or something, but as a 'mantle
radio' no.

Jason

16 ohm speakers were VERY common in the valve days.


what would this have to do with a bass crossover ?

 

[Wayne]

You can download the schemes here
http://www.geocities.com/monitorss/schematics.html

On Fri, 18 Jul 2003 14:04:26 GMT, budgie
<budgie@nowhere.cantech.net.au> wrote:

One of my kids managed to zap my old favourite monitor - rotten
bugger! Now the power light comes on but the big lamp doesn't even
glow inside. Anyone have a cct diagram for these beasties?

TIA

 

[Jason James]

"KLR" <kreed@bigpond.net.au> wrote in message
news:1t5hhv0o2iut3ims1nhsqk01c5cf10nejs@4ax.com...

On Sat, 19 Jul 2003 00:10:20 GMT, "Jason James"
stratosphere2@bigpond.com> wrote:


"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f18883f$0$11109$afc38c87@news.optusnet.com.au...

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:vXURa.2699$OM3.1635@news-server.bigpond.net.au...

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f17343e$0$1212$afc38c87@news.optusnet.com.au...

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:LXBRa.984$OM3.195@news-server.bigpond.net.au...

"Phil Allison" <philallison@optusnet.com.au> wrote in message
news:3f161303$0$20081$afc38c87@news.optusnet.com.au...


** You could always measure it.

Do a 400 Hz sine wave test to get the turns ratio to
the
full
secondary - square the result and multiply by 15 to get the
primary
Z.
The DC current handling *is* a bit more work.



........... Phil


Wouldn't he be better to know which load Z he's going to use
rather
than
mult by 15? Or is a 15 ohm load the standard for expressing
primary
Z?


** The "full secondary " on an A&R multitap tranny is rated
for a
15
ohm load.

............. Phil


Assuming it's not a valve output tranny then..


** It is a valve output trannny.



Class A or B valve outputs
are not likely to be running 15 ohm spkrs.



not directly no - but through a speaker transformer

** They were circa 1964 when that tranny was made.

.............. Phil

Maybe as part of a cross over bass spkr or something, but as a 'mantle
radio' no.

Jason


16 ohm speakers were VERY common in the valve days.

Which equipmemts and which years?

what would this have to do with a bass crossover ?

To avoid presenting too low a total load, cross-overs often used higher than
normal Z spkrs.

Jason

 

[budgie]

On Sat, 19 Jul 2003 01:52:48 GMT, whmrs@mrbc.ca (Wayne) wrote:

You can download the schemes here
http://www.geocities.com/monitorss/schematics.html

Tnx - have d/l-ed it.

Q: what to do witha .djvu file type - did I miss something at that
site re their favourite compression tool?

 

[Wayne]

Requires DjVu web browser plug-in (similar to Acrobat Reader for
pdf's). Get it (free, as is Acrobat Reader) from www.lizardtech.com

Wayne

On Sat, 19 Jul 2003 06:17:51 GMT, budgie
<budgie@nowhere.cantech.net.au> wrote:

On Sat, 19 Jul 2003 01:52:48 GMT, whmrs@mrbc.ca (Wayne) wrote:

You can download the schemes here
http://www.geocities.com/monitorss/schematics.html

Tnx - have d/l-ed it.

Q: what to do witha .djvu file type - did I miss something at that
site re their favourite compression tool?

 

[onestone]

Do you still have the old odometer? Before being able to reprogram this
someone would need to be able to identify the micro used, or the memory
chip used. I would try Suzuki directly first though. They may have a
simple solution for you. failing that there are Suzuki related news groups.

Al

turtle wrote:

I am looking for someone that can reprogram my replacement odometer to read
the correct milage. The odometer is for a Suzuki Hayabusa. I have rung
various auto electricians with no solutions.
Please note that this is not illegal as I only want the odometer to read the
correct milage as the old one read. This is a cult motorcycle and I wish it
to be as original as possible.

Cheers
Turtle

 

[Rob]

"turtle" <speedturtle@mail.com> wrote in message
news:3f1936db$0$26532$afc38c87@news.optusnet.com.au...

I am looking for someone that can reprogram my replacement odometer to
read
the correct milage. The odometer is for a Suzuki Hayabusa. I have rung
various auto electricians with no solutions.
Please note that this is not illegal as I only want the odometer to read
the
correct milage as the old one read. This is a cult motorcycle and I wish
it
to be as original as possible.

Cheers
Turtle

Would a signal generator hooked into the speed sensor input work? It may
take a while.

rob

 

[HH]

Hello,
I am a newbie in the electronics field, I am an "old boy" and want a circuit for a solid state relay.
What I want to do is switch 12vdc @ 500 ma max, as a mechanical relay draws way too much current.
Any suggestions?
Harry Harms

 

[Mike Harding]

On Sun, 20 Jul 2003 04:49:29 GMT, "HH" <Harryharms@hotmail.com> wrote:

Hello,
I am a newbie in the electronics field, I am an "old boy" and want a circuit for a solid state relay.
What I want to do is switch 12vdc @ 500 ma max, as a mechanical relay draws way too much current.
Any suggestions?

A single transistor? MOSFET or a bipolar with a
base resistor?

Tell us more about the load and what you are doing the
switching from.

Mike Harding

 

[HH]

Dear Mike,
Firstly, thank you for your reply!

I have an alarm system at my place of work, and recently, the SLA battery failed, and as our alarm system is a back to base system,
the Security company called out their patrol man three times over the weekend and they charge $35 per callout!! I was not notified
until late Sunday night, and I replaced the SLA, end of problem, That is the background.

I want to connect a 3.5 digit LED voltmeter (Dick Smith Cat no Q2230 across the battery, that is switched on when the mains power is
interrupted, so its a warning that the mains supply is interrupted. The supply current is for the LED meter is 115ma with "000" lit,
plus 5ma per lit segment.
I can sketch & send you a circuit if you want.
Thanks
Harry

"Mike Harding" <mike_harding1@hotmail.com> wrote in message news:tq9khvg90q7bl6g1u5vlclpaa8h791q8eo@4ax.com...
| On Sun, 20 Jul 2003 04:49:29 GMT, "HH" <Harryharms@hotmail.com> wrote:
|
| >Hello,
| >I am a newbie in the electronics field, I am an "old boy" and want a circuit for a solid state relay.
| >What I want to do is switch 12vdc @ 500 ma max, as a mechanical relay draws way too much current.
| >Any suggestions?
|
| A single transistor? MOSFET or a bipolar with a
| base resistor?
|
| Tell us more about the load and what you are doing the
| switching from.
|
| Mike Harding
|