"Bill" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
----------------------------------------------------------------------
Hello:
Measure the ps voltages, the bias supply voltage.
Voltages on the AC4 are 650 HV........250 LV....and  -60 to -100+ bias
voltage....this should be set to idle the 6jb6 finals as described in the
operating manual.  Check the bias voltage with the t4x hooked up and
running....
The filter caps in the ac4 are usually the problem. So if you have another
ac4 try it first before going to further work to find the problem.
When a rig quits working properly one should check the power supply voltages
first!

I just repaired a t4 that keyed up by itself, and it was the bias supply
filter cap failure and the bias voltage could not be adjusted to more
than -30..

Good luck, Bill, KØWLU.


----------------------------------------------------------------------
Submissions:        [EMAIL PROTECTED]
Unsubscribe:        [EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:    [EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
----------------------------------------------------------------------

Reply via email to