Anybody remember Paul Grzybek and his Tube Audio Design line of gear? The one I had was the TAD-60 with EL-34 tubes, bias and feedback adjustment.
He got those from China back when Prima Luna was starting to make a name for itself and dueling with another company who made the same product. This was just as they were becoming established. Paul sold the same units as they did but his were modded.
Paul would buy the units, mod them so you could do the bias without having to open it up, and threw in a feedback knob of his own design so you could tailor it to your own liking.
It was my only venture into tubes but it was great for what it did and there are times when I miss it. Yes, people have been modding for decades.
All the best,
Nonoise
He got those from China back when Prima Luna was starting to make a name for itself and dueling with another company who made the same product. This was just as they were becoming established. Paul sold the same units as they did but his were modded.
Paul would buy the units, mod them so you could do the bias without having to open it up, and threw in a feedback knob of his own design so you could tailor it to your own liking.
It was my only venture into tubes but it was great for what it did and there are times when I miss it. Yes, people have been modding for decades.
All the best,
Nonoise