stpetecubby
New member
Hey guys,
I've got a RM100 that has the power output severely limited. It made a loud pop a couple weeks ago, and I didn't think much of it at the time, but later realized that for where the levels were set and where the master was set, it should have been screaming loud. I did a sanity check with the RM20, which (sadly) blows the RM100 away right now.
I did some reading here about problems that people have had, and I'm starting to worry. I checked the 4 external fuses, I found 7 fuses inside (are there more hidden?). All of the elements looked intact. I put all of the tubes on a tester, and found them all to test strong without any shorts. I also swapped the 12AX7s for some vintage tubes. Everything glows. I haven't checked the bias yet to see if something in the bias circuit was damaged. When I was inside the amp, I didn't see any vaporized semiconductors, no capacitor explosions, no burned traces, nothing out of the ordinary. Doesn't matter which channel its on.
Any ideas on things to check? Or should I proceed to panic mode and prep to send this thing into Randall? My biggest fear is having cooked the primary of the OPT.
Thanks for your help guys.
Jeff
I've got a RM100 that has the power output severely limited. It made a loud pop a couple weeks ago, and I didn't think much of it at the time, but later realized that for where the levels were set and where the master was set, it should have been screaming loud. I did a sanity check with the RM20, which (sadly) blows the RM100 away right now.
I did some reading here about problems that people have had, and I'm starting to worry. I checked the 4 external fuses, I found 7 fuses inside (are there more hidden?). All of the elements looked intact. I put all of the tubes on a tester, and found them all to test strong without any shorts. I also swapped the 12AX7s for some vintage tubes. Everything glows. I haven't checked the bias yet to see if something in the bias circuit was damaged. When I was inside the amp, I didn't see any vaporized semiconductors, no capacitor explosions, no burned traces, nothing out of the ordinary. Doesn't matter which channel its on.
Any ideas on things to check? Or should I proceed to panic mode and prep to send this thing into Randall? My biggest fear is having cooked the primary of the OPT.
Thanks for your help guys.
Jeff