Fred -
All bands??
NOT a power supply problem.
IF you key the transmitter can you hear it in a nearby receiver where it
'should' be?
If you're set up for transceive with the R-4B, does it work in TRANSCEIVE under
RCVR control?
The power supply hum may be the result of transmitter bolts loosening. Some hum is normal, would
NOT be related to a particular band(s).
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
[email protected] wrote:
/Well, the earlier problem with the spot frequency function not working has lead to no output at
all from the transmitter. It shows idle current only when you go to tune or hold the PTT on the mic. /
//
/Any ideas where to start. Tubes or power supply? Power supply rebuilt 3 or 4 years ago .After
rebuilt it always had a 60 cycle hum on 40 meters. You could feel the cabinet vibrating. /
//
/Thanks /
//
/73 de Fred WD8ADG /
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