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previous: Milan Hi. I've got a 76 2204 Marshall hea... -- 8/12/1999 3:31 AM

Re: My Marshall is sick! HELP

8/12/1999 3:48 AM
Trace	Re: My Marshall is sick! HELP Milan; It sound like the amp is loosing bias and that's why the power tubes are glowing red and the amp hums. (I just had this happen to me) The tubes will stop glowing red and will stop humming when you flip the standby switch but as soon as you put the standby switch in the "play" position the tubes will do the same thing. Check your solder connections where you put the caps in, swap each cap out with a cap you know is good (maybe one is bad...it happens every now and then but it's rare if they are new caps) What values did you put in? I'd also make sure they are around 600volts to be on the safe side. Hollar back Trace

8/12/1999 3:48 AM

Trace

Re: My Marshall is sick! HELP

Milan;

It sound like the amp is loosing bias and that's why the power tubes are glowing red and the amp hums. (I just had this happen to me)

The tubes will stop glowing red and will stop humming when you flip the standby switch but as soon as you put the standby switch in the "play" position the tubes will do the same thing.

Check your solder connections where you put the caps in, swap each cap out with a cap you know is good (maybe one is bad...it happens every now and then but it's rare if they are new caps)

What values did you put in? I'd also make sure they are around 600volts to be on the safe side.

Hollar back

Trace

Replies:

Milan I'm sure the connections on the par... -- 8/12/1999 4:09 AM