The ones in the back of the unit are for calibrating the meters in 'limit' mode; The ones just behind the 5751 are for balancing-out differences between the two halves of the 'mU-tube' (5670). The ones attached to the inside of the front panel are for calibrating the meters in 'Compression' mode. If you have the T-Bar mod, I think that there's also a 'balance' (6BA6) trimmer on that board, too.
This
link may not be for your unit, but there's more info about the trimpots on page 15.
Best,
Graemme
Quote:
Originally Posted by grandmasters  that last post just jinxed me. a tube died in the middle of my session today. the 5751 tube. luckily i had the old tube from when i retubed it last december. i was surprised to find that the 5751 tube was a 12AX7EH from the factory. Are they the same tube?
Can anyone tell me what the trim pots inside the unit apply to? |