Seeking Kat34 documentation

[Stefan]

Greetings.

Some 15 years ago I built a KAT34 amp. Liked it so much that I sprung for the 300B PSE monoblocs and listened to them for several years. Then I moved from Europe to the US and both systems languished. In the last couple of weeks, I revived the monoblocs. They both needed work: one was motorboating, the other generating distortion due to an aging solder joint. Anyway, they are sounding great now. So I want to tackle the older KAT34, but I lack the documentation, in particular the circuit diagrams. Could someone kindly provide these? KIT34 would do just as well, of course. I would be very grateful.

It's such a pleasure to listen to my 300Bs! It may be, in part, due to the high-end components that I installed during the build. I picked them up during business trips to Tokyo, rummaging through the wonderful shops in Akihabara. I have a full set of Black Gate caps in both systems, including "Heart of Muse" 100uf cans on the HV supplies. I thought they were expensive at the time, now I see used(!) ones going for five times the original price on ebay!

[Greg.]

Long time no speak, Stefan. Good to see you are still using and enthusiastic about your WAD amps.

You have PM.

[Stefan]

This is just to show that the WAD monoblocks are still alive and kicking serious music. My system includes Klipsch RF-5 speakers and an ancient Squeezebox music source that plays my FLAC format CD collection. I can switch to Spotify, which comes in from a Mac laptop via an optical cable. To allow for switching, I reluctantly installed an ALPS potentiometer for volume control. The box on the lower right contains a MONICA2 NOS DAC, powered by a 12V rechargeable battery.

The cabinet (which contains all power distribution components plus slack DIY speaker cables) and the lamps on the speakers are from my wood shop.