Welcome To the Hoffman Amplifiers ForumJuly 24, 2026, 04:18:00 pm | ||
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4 x EL34 in A class
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5186 Views |
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what's a varistor ?
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4952 Views |
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AB763 Turret Board layout
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5789 Views |
by Geezer |
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Floating Baffle
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4976 Views |
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Labeling/decals for pot controls
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6465 Views |
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4795 Views |
by Geezer |
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gz34 question...
Started by Geezer |
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5962 Views |
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This here tube amp
Started by Geezer |
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5167 Views |
by Geezer |
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Grounding Scheme
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5526 Views |
by Geezer |
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58 Deluxe w/replacement transformers
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5474 Views |
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Fender mods
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7570 Views |
by Geezer |
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Fender 5C8 Twin Output Transformer
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5075 Views |
by Geezer |
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6G3 Deluxe Ptrans
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4478 Views |
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Quiet AB Box
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4584 Views |
by Geezer |
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4195 Views |
by Geezer |
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Celestion sources
Started by Geezer |
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4511 Views |
by Geezer |
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sigle EL84 amp layout
Started by Geezer |
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4788 Views |
by Geezer |
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To use or not to use odd tubes &nbs
Started by Geezer |
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4806 Views |
by Geezer |
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how to drop plate voltage &nb
Started by Geezer |
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7663 Views |
by Geezer |
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Bias problems in a Deluxe Reverb
Started by Geezer |
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5269 Views |
by Geezer |
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another speaker hookup question
Started by Geezer |
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4208 Views |
by Geezer |
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Line Out on a 5E3
Started by Geezer |
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4679 Views |
by Geezer |
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Tube load impedances
Started by Geezer |
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4329 Views |
by Geezer |
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4286 Views |
by Geezer |
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Fat Switch + More Gain
Started by Geezer |
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5321 Views |
by Geezer |
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4924 Views |
by Geezer |
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Matching EL84's
Started by Geezer |
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4360 Views |
by Geezer |
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Silverface Super Reverb Question
Started by Geezer |
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4259 Views |
by Geezer |
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Simple reverb circut
Started by Geezer |
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5012 Views |
by Geezer |
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Fender Deluxe Reverb
Started by Geezer |
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4540 Views |
by Geezer |
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Chassis Recommendations
Started by Geezer |
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4325 Views |
by Geezer |
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Peavey Classic 30 Circuit board design?
Started by Geezer |
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7061 Views |
by Geezer |
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dumb question about knobs
Started by Geezer |
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4466 Views |
by Geezer |
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Low frequency distortion all of a sudden
Started by Geezer |
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4663 Views |
by Geezer |
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4477 Views |
by Geezer |
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I need opinions on tubes!
Started by Geezer |
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4483 Views |
by Geezer |
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Moving the tone stack in a Plexi clone
Started by Geezer |
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4564 Views |
by Geezer |
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Speaker crossovers
Started by Geezer |
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4314 Views |
by Geezer |
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help building Doug's bias checker
Started by Geezer |
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4434 Views |
by Geezer |
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Electronics distributer
Started by Geezer |
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4084 Views |
by Geezer |
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power transformer.
Started by Geezer |
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5186 Views |
by Geezer |
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What damage can occur if...
Started by Geezer |
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4330 Views |
by Geezer |
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PT repair question
Started by Geezer |
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4573 Views |
by Geezer |
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What to Build Next ?
Started by Geezer |
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4338 Views |
by Geezer |
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Mesa boogie 400+ vs Ampeg SVT CL
Started by Geezer |
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5752 Views |
by Geezer |
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4654 Views |
by Geezer |
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hum from aa764 champ
Started by Geezer |
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4764 Views |
by Geezer |
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AB763 70uf Power supply caps
Started by Geezer |
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4461 Views |
by Geezer |
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4519 Views |
by Geezer |
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4509 Views |
by Geezer |
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