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Author Topic: Blue LED mod for Drake radios  (Read 2471 times)
N9DO
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Posts: 55




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« on: October 05, 2012, 11:01:14 AM »

Recently saw an ad for sale a Drake TR4 with blue LED mod installed. Can anyone fill me in on where this blue led mod information can be found.
Thanks,
Fred
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N0RU
Member

Posts: 8




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« Reply #1 on: October 05, 2012, 03:35:52 PM »

There are several sources for these kits.  I have added them to three of my stations and think they look great.  Purists may not like them, but to each their own.  Installing one set in my TR-7 seems to have slowed the drift rate on the VFO.  Only draw back is the need to remove the DR-7 board which can be tricky.  Nationwide Radio & Equipment Sales LLC is who I purchased the kits from.  Another good source for Drake parts is 2B Radio Parts, google both for thir sites.

Good Luck.

Robb  N0RU
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W9GB
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Posts: 2626




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« Reply #2 on: October 05, 2012, 04:47:52 PM »

The automotive, aviation, and pinball enthusiasts (and restorers) spend $$$ and get products.

Most bulb mfg., like Chicago Miniature (CML) now offer LED versions
in popular bulb holders and voltages. North America:
http://www.chml.com/

For Europe and Asia
http://www.cml-it.com/DEBD/index.php?p=25&c=14

Ablaze offers 1 and 3 LED versions of the #47 bulb (6.3 V)
http://www.ablazelighting.com/index.php?page=led-lighting

http://www.centsibleamusements.com/pinball-led-44-47.aspx
« Last Edit: October 05, 2012, 05:02:07 PM by W9GB » Logged
KA4POL
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Posts: 2032




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« Reply #3 on: October 05, 2012, 11:29:44 PM »

My top result of 223,000 upon searching for 'drake blue led mod': http://www.radiolabworks.com/products/4linelamps/4linelamp.html
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W9GB
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Posts: 2626




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« Reply #4 on: October 06, 2012, 09:49:12 AM »

Dieter,

That is D.A. Buska, in Kenosha, WI
These are not mass produced lamps.  
He hand assembles each lamp in his shop, hence the pricing.
« Last Edit: October 06, 2012, 09:51:46 AM by W9GB » Logged
KA4POL
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Posts: 2032




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« Reply #5 on: October 06, 2012, 10:21:35 AM »

I would do that myself as a DIY project. I think it's easy enough. Calculate the series resistor for the right current of the selected LED. Solder it and voila.
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WB0CJB
Member

Posts: 38




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« Reply #6 on: October 10, 2012, 04:54:26 PM »

There's a website www.superbrightled.com that sells the blue LEDs. I found a plastic report cover that had a clear front and blue back that almost matches the original blue filter. I cut a piece and you can barely tell the difference. Only cost me couple of bucks at the school supply section in Walmart.

Paul WB0CJB
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W9GB
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Posts: 2626




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« Reply #7 on: October 10, 2012, 06:07:49 PM »

Paul --

Don't forget the COLORED drinking straws at Starbucks and McDonald's.

I use these for regular brightness SM LEDs on a strip.  Green and Red common (straw colors),
 I have not seen a blue straw yet -- but they are likely sold somewhere.
==
Hobby shops sell translucent white and blue plastic sheets ~ 8 x 10 inch

w9gb
« Last Edit: October 10, 2012, 06:10:19 PM by W9GB » Logged
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