Help : MOCOM 70 LIGHTBULB

Post by **radioman202** » Tue May 15, 2007 4:01 pm

Can anyone tell me what the part number is for the 2 lightbulbs used for tx and rx in the mocom70 base.
Or where i could find some that would fit with the right voltage.

Jonathan KC8RYW · Post by **Jonathan KC8RYW** » Tue May 15, 2007 4:43 pm

Lightbulbs?

You mean the tubes?

FireCpt809 · Post by **FireCpt809** » Tue May 15, 2007 4:50 pm

probably the tx/rx bulbs for the inidcator light

MetroMan · Post by **MetroMan** » Tue May 15, 2007 5:08 pm

pretty sure it's a #53 lamp

Oops, just noticed you wanted the "Base" lamp. I think it was a #756 in the consolette. I'll check the book in work tomorrow if I can find one.

Will · Post by **Will** » Tue May 15, 2007 11:12 pm

MetroMan wrote: I think it was a #756 in the consolette. I'll check the book in work tomorrow if I can find one.

Yes it IS a #756, 14 volt bulb. Also check the consolette power supply voltage they creep up when they 'age'. Anything over 13.8 is too high....

bernie · Post by **bernie** » Sat May 19, 2007 10:32 am

My two bits worth:
The last time I serviced one of these I used a "Super bright" green LED with a limiting resistor. Just wire it to the socket.
Took less time than locating a replacement light bulb.

The original lamps do not last very long.
Many of the current replacement lamps are of very poor quality.