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Author Topic: TM-733 Front Panel Lamps  (Read 2799 times)
WB4PPW
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Posts: 17




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« on: July 07, 2012, 08:03:05 PM »

I need 4 Miniature wheat grain lamps for the display of my TM-733. Any one know what voltage I need, and  a source for these bulbs ?
Jess WB4PPW
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KA5IPF
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« Reply #1 on: July 07, 2012, 08:24:21 PM »

6.3v 75ma T1 with leads. Kenwood PN B30-0865-15
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W9GB
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« Reply #2 on: July 09, 2012, 07:59:43 PM »

Ron Spoon, AH6RR has T1 (3mm) 6.3 V pilot lamps that fit Kenwood Radios, part number B30-0865-15.
Kenwood part number: B30-0865-15 is no longer available from Kenwood parts.

These fit the following radios maybe more: TM-641,721,731,732,733 and TS-50/60.

It could be more radios they fit check your service manual for the above part numbers
When the Kenwood parts had them they were $3.58 each.

AH6RR sells these for $1.50 each plus $1.00 shipping (up to 5 lamps) or $12.50 for 10 and $2.50 shipping.
Ron had to buy a large quantity to fix his TM-733 back lights so he may still have spares available (over 90).

CONTACT Ron Spoon (Hawaii): AH6RR at ARRL dot NET
« Last Edit: July 09, 2012, 08:06:45 PM by W9GB » Logged
KE4DRN
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Posts: 3710




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« Reply #3 on: July 10, 2012, 04:52:34 PM »

hi,

if you need them fast, w5cia has bulbs on ebay,
his callsign is his store name.

73 james
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KA5IPF
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« Reply #4 on: July 10, 2012, 07:44:08 PM »


Kenwood part number: B30-0865-15 is no longer available from Kenwood parts.

These fit the following radios maybe more: TM-641,721,731,732,733 and TS-50/60.

The updated # is B30-0865-25 and they are available.

Hint the last 2 number are Rev numbers. If you leave them off the search engine will pull up all available or discontinued.

Clif
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KA4POL
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« Reply #5 on: July 10, 2012, 10:12:57 PM »

I'd consider LEDs as replacement. They come in suitable sizes. You'll probably need wide angle ones. Just use a resistor to reduce the voltage.
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SWMAN
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Posts: 543




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« Reply #6 on: July 11, 2012, 10:03:23 AM »

 Radio Shack has wheat lamps but they are 12 volt. I use them in my older Heathkit stereo amp for the dial pointer. Or LEDs are good too.
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KA5IPF
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« Reply #7 on: July 11, 2012, 12:18:52 PM »

I'd consider LEDs as replacement. They come in suitable sizes. You'll probably need wide angle ones. Just use a resistor to reduce the voltage.

Problem is I've never seen a LED that shines out the side. If you know of a wide angle that size with 180 deg coverage I'll like to know.

Clif
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SWMAN
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« Reply #8 on: July 11, 2012, 12:37:52 PM »

Clif,
 The Shack has thoes also. The rectangular shape ones have a wide angle dispersion of about 180 to 240 degrees. They have blue, white and yellow colored ones. I have used these on panel meter replacements.  Good luck and 73, Jim  W5JJG
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WB4PPW
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« Reply #9 on: July 11, 2012, 06:03:23 PM »

Thanks for all the help.  I'll give Ron call. I don't know about the LED's not much room for resistors, I'll have to check that out and see what I need to change over.
73 Jess WB4PPW
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