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No idea comes to mind unless it failed for some reason

C111 is simply a local power supply bypass capacitor. It does no harm to have this capacitor installed. Really has nothing to do with the loop stability of the amplifier.

Is that from the PL guru Lee??

A key focus for me Lee...

Polar opposites

Nobody can say you don't have any 'nads' now Jim

It seemed like a good idea at the time...

Did you take off the transistor covers Lee?

These will be included in all new Backplane Board Kit shipments. Both PL400 and PL700. These replace the lower standoffs that host the bias transistor. These plus a 1/32" thick nylon washer replace the round standoff with 1/8" thick nylon washer used before. Goal, better thermal interface to...

To dress up that old amp of yours with missing faceplate bolts...

Put a 2A fast blow fuse in line

Bob Dylan - Blood on the Tracks. Great album, beginning to end.

No it is not, 1V in on a 400 may hit the power supply clipping limit while the 700 still has room to move and needs 1.25V to hit clipping due to a higher voltage power supply in the 700. What is true is that up to the onset of clipping, the same input level into the 400 and 700 will produce the...

High side Perry, there is little energy in the HF when compared to the lows...

As is the damping factor and every other parameter

The gain of 400s, 700s (with pots maxed), Model ONEs (also with pots maxed or bypassed) is IDENTICAL. The only difference is the max power each can produce before clipping

I suppose it depends on the price of eggs, Chris...

Most towns surrounding me in MA are Right to Farm towns; horses, cows, pigs, goats, sheep, chickens, ducks, etc.

Still $5.00 per completely organic dozen from many neighbors in the area here. Chickens are everywhere.

Very, very lucky...part of my mech design group at work was responsible for packaging. So I know just by looking at packaging whether it stands a chance of working or not. That original attempt was a no go.