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Old August 27th 03, 12:35 PM
Frank Dinger
 
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I have searched many of the usual sources and can't seem to locate
replacement lamps; as a last resort I could go to Pacific Parts but they

are
so expensive. These are just inexpensively made tiny bulbs with wire

leads.

Any suggestions?

========
Suggest you have a look at QST -Sep 2003 , page 38 .
There you find an article : Solid-State Those Pilot Lamps , by AD5X

Since your bulbs have wire leads you can readily replace them by a LED (of
your desired coulour) and an appropriate resistor.
After that you can forget about replacement for ever .

Good Luck

Frank GM0CSZ / KN6WH



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Old August 27th 03, 06:14 PM
Bob
 
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To all who suggested LEDs, thanks for the suggestions but there is a
problem. These are not pilot lamps. They illuminate an LCD and need to be
controllable by a regulator circuit for intensity. LEDs aren't really
suited to this application, although some modification of the circuitry and
optics might make it work.

All I want to do is get some more incandescent lamps for this radio, and
keep it close to original.

Bob


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Old August 28th 03, 12:52 AM
Randy and/or Sherry
 
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Bob wrote:

All I want to do is get some more incandescent lamps for this radio, and
keep it close to original.


email JKL Lamps and ask what they've got to meet your specs. If they
don't have it - you're in trouble- they have several THOUSAND types
available. You do have to go through one of their distributors - but
they'll tell you who has the lamp you want.

You're going to need to measure the bulb very carefully length &
diameter - is it round or cylindrical; wires out the bottom (standard)
or each end (axial)... and you're going to need the voltage and current
of one bulb.

JKL has wire base bulbs in 5 and 6 volts from T-3/4 size (.187 Long X
..094 diameter( to T-1 3/4 (.520 long X .230 diameter)...

the T-1 1/4 standard size come in
5V @21, 40, 60, 75, 115ma -
6V @ 40, 60, 200ma
6.3V @70 & 200ma -
life ave 10,000 - 100,000

This is the bunch that the has "fuse clip" bulbs in 6.3, 8 and 12V

email:

best regards...
--
randy guttery

A Tender Tale - a page dedicated to those Ships and Crews
so vital to the United States Silent Service:
http://tendertale.com

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Old August 28th 03, 12:52 AM
Randy and/or Sherry
 
Posts: n/a
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Bob wrote:

All I want to do is get some more incandescent lamps for this radio, and
keep it close to original.


email JKL Lamps and ask what they've got to meet your specs. If they
don't have it - you're in trouble- they have several THOUSAND types
available. You do have to go through one of their distributors - but
they'll tell you who has the lamp you want.

You're going to need to measure the bulb very carefully length &
diameter - is it round or cylindrical; wires out the bottom (standard)
or each end (axial)... and you're going to need the voltage and current
of one bulb.

JKL has wire base bulbs in 5 and 6 volts from T-3/4 size (.187 Long X
..094 diameter( to T-1 3/4 (.520 long X .230 diameter)...

the T-1 1/4 standard size come in
5V @21, 40, 60, 75, 115ma -
6V @ 40, 60, 200ma
6.3V @70 & 200ma -
life ave 10,000 - 100,000

This is the bunch that the has "fuse clip" bulbs in 6.3, 8 and 12V

email:

best regards...
--
randy guttery

A Tender Tale - a page dedicated to those Ships and Crews
so vital to the United States Silent Service:
http://tendertale.com

  #5   Report Post  
Old August 27th 03, 06:14 PM
Bob
 
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To all who suggested LEDs, thanks for the suggestions but there is a
problem. These are not pilot lamps. They illuminate an LCD and need to be
controllable by a regulator circuit for intensity. LEDs aren't really
suited to this application, although some modification of the circuitry and
optics might make it work.

All I want to do is get some more incandescent lamps for this radio, and
keep it close to original.

Bob




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Old August 30th 03, 05:31 PM
Mark Jones
 
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Bob wrote:
Looking for tiny incandescent lamps for my TM-451A Kenwood.

Apparently these are 6 V or so; there are four of them in
series parallel controlled by a regulator to vary intensity.
They light up the LCD and two of them are burned out.

I have searched many of the usual sources and can't seem to
locate replacement lamps; as a last resort I could go to
Pacific Parts but they are so expensive. These are just
inexpensively made tiny bulbs with wire leads.

Any suggestions?

Bob


Perhaps one of these might fit the bill, LED replacements for typical
incandesents...

http://dkc3.digikey.com/PDF/T033/1200.pdf




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Old August 30th 03, 05:51 PM
Al
 
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Default

In article ,
"Mark Jones" 127.0.0.1 wrote:

Bob wrote:
Looking for tiny incandescent lamps for my TM-451A Kenwood.

Apparently these are 6 V or so; there are four of them in
series parallel controlled by a regulator to vary intensity.
They light up the LCD and two of them are burned out.

I have searched many of the usual sources and can't seem to
locate replacement lamps; as a last resort I could go to
Pacific Parts but they are so expensive. These are just
inexpensively made tiny bulbs with wire leads.

Any suggestions?

Bob


Perhaps one of these might fit the bill, LED replacements for typical
incandesents...

http://dkc3.digikey.com/PDF/T033/1200.pdf


You seem fixated on replacing the originals with incadescent bulbs. Here
is another source: http://www.lightbulbwarehouse.com/

And if that is too expensive, try the miniature bulbs used for model
trains or doll houses or christmas tree lights.

Al

--
There's never enough time to do it right the first time.......
  #8   Report Post  
Old August 30th 03, 05:51 PM
Al
 
Posts: n/a
Default

In article ,
"Mark Jones" 127.0.0.1 wrote:

Bob wrote:
Looking for tiny incandescent lamps for my TM-451A Kenwood.

Apparently these are 6 V or so; there are four of them in
series parallel controlled by a regulator to vary intensity.
They light up the LCD and two of them are burned out.

I have searched many of the usual sources and can't seem to
locate replacement lamps; as a last resort I could go to
Pacific Parts but they are so expensive. These are just
inexpensively made tiny bulbs with wire leads.

Any suggestions?

Bob


Perhaps one of these might fit the bill, LED replacements for typical
incandesents...

http://dkc3.digikey.com/PDF/T033/1200.pdf


You seem fixated on replacing the originals with incadescent bulbs. Here
is another source: http://www.lightbulbwarehouse.com/

And if that is too expensive, try the miniature bulbs used for model
trains or doll houses or christmas tree lights.

Al

--
There's never enough time to do it right the first time.......
  #9   Report Post  
Old August 30th 03, 05:31 PM
Mark Jones
 
Posts: n/a
Default

Bob wrote:
Looking for tiny incandescent lamps for my TM-451A Kenwood.

Apparently these are 6 V or so; there are four of them in
series parallel controlled by a regulator to vary intensity.
They light up the LCD and two of them are burned out.

I have searched many of the usual sources and can't seem to
locate replacement lamps; as a last resort I could go to
Pacific Parts but they are so expensive. These are just
inexpensively made tiny bulbs with wire leads.

Any suggestions?

Bob


Perhaps one of these might fit the bill, LED replacements for typical
incandesents...

http://dkc3.digikey.com/PDF/T033/1200.pdf




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