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Motorboating Tremolux clone

7/1/2000 2:34 AM
Yossarian	Motorboating Tremolux clone Hi Ampage cats, I'm having a problem w/my Tremolux clone. I just tried to get it to run, but when the bias comes up, it starts motorboating, and it gets louder as the bias goes more negative [probably obvious to you all?]. It's a 6G9 [w/EL-84's] and also my first try at building my own amp (as you may have guessed by my semi-retarded questions here before). I altered the power supply using 40uf Sprague Atom-5 Henry 150 ma choke-40uf & Plate supply-10K 5W wirewound-40uf & screen grid supply/tremolo supply-10K 5W-40uf inverter plate supply-10K 5W-30uf normal channel plate supplies-10K 5 W-30uf bright channel plate supplies. Too much capacitance? I thought that since I decoupled the channels I'd be ok. I tried doing a Dejanews search on motorboating, but I ended up in an endless loop with recreational boating topics. Any directions to the answers would be great if this is too much to cover here. Thanks for any tips, Yossarian.

7/1/2000 2:34 AM

Yossarian

Motorboating Tremolux clone

Hi Ampage cats, I'm having a problem w/my Tremolux clone. I just tried to get it to run, but when the bias comes up, it starts motorboating, and it gets louder as the bias goes more negative [probably obvious to you all?]. It's a 6G9 [w/EL-84's] and also my first try at building my own amp (as you may have guessed by my semi-retarded questions here before). I altered the power supply using 40uf Sprague Atom-5 Henry 150 ma choke-40uf & Plate supply-10K 5W wirewound-40uf & screen grid supply/tremolo supply-10K 5W-40uf inverter plate supply-10K 5W-30uf normal channel plate supplies-10K 5 W-30uf bright channel plate supplies. Too much capacitance? I thought that since I decoupled the channels I'd be ok. I tried doing a Dejanews search on motorboating, but I ended up in an endless loop with recreational boating topics. Any directions to the answers would be great if this is too much to cover here. Thanks for any tips, Yossarian.

Replies:

Casey4s If you haven't tried this yet, reve... -- 7/1/2000 3:14 AM
pgambon Having just solved a motorboating p... -- 7/7/2000 2:14 PM