Diyaudio member Johan Potgieter passed away last week . I'm posting this here because he was most active in the valve/tube section .
https://www.avforums.co.za/threads/rip.7997/post-1106647
https://www.avforums.co.za/threads/rip.7997/post-1106647
Sad News.
His posts about the winding details of the Quad II opts helped me to understand them.
RIP
His posts about the winding details of the Quad II opts helped me to understand them.
RIP
Ai, that's sad news.
One of the regulars in the tube/valve section that'll be missed.
Quad II indeed, doubled up with 4 6L6 per channel.
Safe journey Johan.
One of the regulars in the tube/valve section that'll be missed.
Quad II indeed, doubled up with 4 6L6 per channel.
Safe journey Johan.
I too learnt so much from Oom Ampdog (Johan's nick was Ampdog on avforums.co.za).
Anybody wishing to read any posts he made there can join and view post under that profile . I think there are only a few in the world with as an acute understanding of the intricacies of tube electronics . Hopefully more will be made known of his Magnus Opus - the Hallé - a PPP 6L6GC amplifier he was working on . There was some mention of it here at some point .
Some info Johan left at avforums : https://www.avforums.co.za/threads/a-100w-p-c-stereo-valve-amplifier.63383/
Anybody wishing to read any posts he made there can join and view post under that profile . I think there are only a few in the world with as an acute understanding of the intricacies of tube electronics . Hopefully more will be made known of his Magnus Opus - the Hallé - a PPP 6L6GC amplifier he was working on . There was some mention of it here at some point .
Some info Johan left at avforums : https://www.avforums.co.za/threads/a-100w-p-c-stereo-valve-amplifier.63383/
