Building an amp

24 - Biasing

Biasing

Biasing.

Plate voltage 335 V. Biased on 25 mA. (for now)

25 mA was a little hot, so I ended up at 21 mA. But this was after many hours of playing and listening. A little hot sounded very nice, but the headroom was a very small. I think it's following the rules, but listen carefully. And not once, no try your settings tomorrow, next week, till your happy with it.

Doghouse

I'll mount the doghouse first; for safety reasons. Very high voltages underneath the chassis. First discharge the filtercaps.

Oeps

One of the screws of the doghouse came very close too the input jack. Just shortened the screw a little.

Doghouse Mounted

Doghouse mounted.

Finished Amp

This is what the amp looks like now.