12-28-2015, 07:04 PM
As I recall, the winding for the dial lamps is 6.3V.
I used some LED replacement fuse lamps in a few of my Fisher receivers before the supplier doubled the price on them and I quit buying them as a result. Anyway, they were designed for use at 6.3V and they work just fine.
I have no idea why you would have two 200 uF electrolytics in parallel at the C17 position. The early manual and a later manual (above serial number 30001) both call for a single 200 uF cap for C17.
If you drop in a tiny LED to replace the dial pointer lamp (which is what I would do if I had to replace one), you might have to adjust the value of R72 plus add a diode in series so that the LED will be happier than by using raw AC.
I used some LED replacement fuse lamps in a few of my Fisher receivers before the supplier doubled the price on them and I quit buying them as a result. Anyway, they were designed for use at 6.3V and they work just fine.
I have no idea why you would have two 200 uF electrolytics in parallel at the C17 position. The early manual and a later manual (above serial number 30001) both call for a single 200 uF cap for C17.
If you drop in a tiny LED to replace the dial pointer lamp (which is what I would do if I had to replace one), you might have to adjust the value of R72 plus add a diode in series so that the LED will be happier than by using raw AC.
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Ron Ramirez
Ferdinand IN
