Also- this is the bias that controls the socket where I recently blew a power tube (already replaced).
Furthermore there is considerably more hum coming out of my right speaker vs my left.
Thanks, in advance, for advice I still have a lot to learn.
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B&WTube wrote:3 out of 4 of my bias pots have the same setting to reach .450 and the other is much lower on the pot dial to achieve.450. Upon playing with it this bias, I noticed that even if I turn it all of the way down- it still reads .160
Also- this is the bias that controls the socket where I recently blew a power tube (already replaced).
Furthermore there is considerably more hum coming out of my right speaker vs my left.
Thanks, in advance, for advice I still have a lot to learn.
B&WTube wrote:Thanks, Bob! I went ahead and ordered those. It is amazing that I can purchase and get them shipped to my house for $2.59 total.
Do you know of any good tutorial that can walk me through the basics of what NOT to do/touch when testing internal voltages? I have never done anything inside of the amp with the power ON. I've heard there are things that if messed with have enough power to kill, and my kids still need me around for a few more years.
Dale Stevens wrote:B&W, hold on; Be sure you read the sticky here on SAFETY.
Bob, why not measure the bias res from the top without opening the amp??
Just go from pin 8 on each power tube to ground? Dale
B&WTube wrote:Could it be something to do with pin6 of V7, where it connects to the VTA board or the other wires off the VTA? My triode wires are correct there is a place where the insulated wire touches a solder on the neighboring pin.
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