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You new guys don’t see what someone like Don has done for the Phase linear community. All the manuals flying around the web all came from Don. Maybe you can build a board but it’s a bastard. You’ll pay the price later when you try to sell it. His stuff is the standard and it’s about time people...

Don sells blank boards just buy those and use your parts.I do that

I’ve bought about 30 of Dons boards over the years Not one problem Not sure why you you guys are wasting your time on a proven product I am building 1200 watts amps with about the same effort

There you go Don Giving away the farm

My wife said this sums up our communications

This is my life

Hi George I always like to see something new can you give a bit of detail on what the preamp is capable of. Number of channels output max voltage and the phono section details. if we can give you support in any way we’ll be there. I may like to build one as well Glen

I’d sure like to see this run through some test gear. Kind of goes against the grain and your hearing may be a lot different than mine. Larger cap on the output is usually better dynamic not smaller one. The resistor is only a dampener of sorts . You can find Joe had done a good write up on...

George directed me to this site today only to find My $50 order turned into $200 but what will we do when all these guys are gone ALL ELECTRONICS IS GOING OUT OF BUSINESS Clearance Sale in Progress After 56 years supplying surplus and new electronic parts and supplies, we have decided to call...

Having done this experiment several times on Carvers using brown dog adapters and opa2134 chips I have gone back to installing new RC4136’s In the phono and main drive circuits only No measurable sound difference or in noise floor measuring on the AP. I’ll be interested in your results

I guess I need to unpackage the two I bought a while back and get up to date Joe. Keep up the good work

You have nailed it. I have verified with my Audio Precision that bundling them lowers noise and everything else. keep then together and as far from the op amps as possible. Raising the control board 1/2” helps as well

Living in the land of raging forest fires the real culprit is lightening. Had to put two lighting strikes out in May a mile from the lake house the real problem is the pansy’s in office waffling about instead of taking action and slowing the fire crews to go attack fires when they start if you...

Is not what he knows but what he smoked