Hello
I am about to replace the 4 power valves on this amplfier (6AQ5 type)
I see there are pre-sets under the valve bases, am i correct in thinking these are for setting the bias on the output valves?
If i am correct how do I go about doing this, I have a Fluke digital multi meter
Gary
I am about to replace the 4 power valves on this amplfier (6AQ5 type)
I see there are pre-sets under the valve bases, am i correct in thinking these are for setting the bias on the output valves?
If i am correct how do I go about doing this, I have a Fluke digital multi meter
Gary
Often the Meng 6P1 has 4 trimpots, 2 for hum balance and 2 for phase splitter balance. The output valves are 6P1 (9 pin) and not 6AQ5 (7 pin) but they are generally considered equivalents. The output valves are self-biased so just fit the new ones, no adjustments should be needed. The Mengs I have seen have the 4 trimpots near the front two input stage valves, not the output valves, so if you have trimpots under the bases of the output valves then disregard this info.
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