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I was given two amplifiers with no information or history. They came with output tubes but no pre-amp or phase splitters. After some research I found that they are based on the Glass Audio 100w Triode amplifier. No idea who made them but they are very well put together. They have six 6550 output tubes. The circuit has also been modified with 555 timers to turn on parts of the amp in sequence. No schematics. They work but one amp makes a nasty noise when turned off. I really need some way to match the three pairs of 6550s.
Topic starter
Posted : 25/11/2024 1:05 pm
RadTekMan reacted
Sorry can’t help but I assume your talking about this https://audioxpress.com/article/100w-triode-amplifier
Posted : 04/03/2025 2:04 am