At 10:05 AM 9/16/97 -0400, you wrote:
> Phil, how about some definition of small pilot lamps, as think
>that is a good idea. Drake first used this concept on the TR-3/TR-4
>transceivers, and Yaesu also uses a series "lamp filament". If you have
>identification, would help. I suspect you are probably using something
>like the small "wheatstone" bulbs, lo current application to get the
>"fuse protection" from the filaments. The old #48/49 bulbs are 2.0 volt,
>60 ma rating, which is about the lowest I find in an old handbook...
> Another tip I got from a fellow Lo-Bander, is to put a neon bulb
>across the terminating resistor on a Beverage to protect against surge
>voltages wiping out the terminating resistors. No filament failure to
>replace if a lightning voltage surge occurs, as it fires the neon...
> 73- George, W4BUW
These are very small 12v bulbs that I found at a hobby shop to replace
dial lamps in my Yaesu FT-ONE and Icom VHF radios. They already have the
pigtails soldered on, so it made an easy installation. GL!
(((73)))
Phil, K5PC
-
---
FAQ on WWW: http://www.contesting.com/topband.html
Submissions: topband@contesting.com
Administrative requests: topband-REQUEST@contesting.com
Problems: owner-topband@contesting.com
|