Hi Guys,
I bought a used Mark V recently and so far it seems to work perfectly. The last owner replaced all the tubes before selling, so they are only about 2 months old. Last night when switching (footswitch) from CH3 (any mode) to CH2 (Mark 1 mode only) I get this strange moaning sound from the speaker. It does not do this when switching between any other modes or channels. Any idea if this would be tube microphonics or something else? Thanks in advance for reading.
I bought a used Mark V recently and so far it seems to work perfectly. The last owner replaced all the tubes before selling, so they are only about 2 months old. Last night when switching (footswitch) from CH3 (any mode) to CH2 (Mark 1 mode only) I get this strange moaning sound from the speaker. It does not do this when switching between any other modes or channels. Any idea if this would be tube microphonics or something else? Thanks in advance for reading.
