Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 01:57:17 am | ||
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Perplexing Hum in Plexi 50
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5293 Views |
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4101 Views |
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Bassman100 Silverface Blues &
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4709 Views |
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microphonic wires in Twin Reverb &nb
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4882 Views |
by Geezer |
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Marshall PT 100W to 50W, possible?
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5381 Views |
by Geezer |
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68 Princeton cap job (AA964)
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4777 Views |
by Geezer |
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Chassis dimensions
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6351 Views |
by Geezer |
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Hoffman/Marshall audio clips- at last!
Started by Geezer |
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4444 Views |
by Geezer |
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Heater wire voltage too low
Started by Geezer |
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5231 Views |
by Geezer |
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concentric pot?????
Started by Geezer |
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5394 Views |
by Geezer |
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tube hifi stereo
Started by Geezer |
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4431 Views |
by Geezer |
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PT Rectifier and Speaker Qs
Started by Geezer |
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4101 Views |
by Geezer |
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phase inverters
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4378 Views |
by Geezer |
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Tube Bias Checker?
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4298 Views |
by Geezer |
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Super 60 PT
Started by Geezer |
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4469 Views |
by Geezer |
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Puzzled by cathode bias questions
Started by Geezer |
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5067 Views |
by Geezer |
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Signal caps. on 69 twin
Started by Geezer |
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4265 Views |
by Geezer |
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Vibroclone hiss (channel 2)
Started by Geezer |
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4637 Views |
by Geezer |
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4130 Views |
by Geezer |
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Howdy boys
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4187 Views |
by Geezer |
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AC30 home built amp
Started by Geezer |
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4460 Views |
by Geezer |
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Tweed Bassman Speakers
Started by Geezer |
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4445 Views |
by Geezer |
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AB763 help needed..
Started by Geezer |
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4890 Views |
by Geezer |
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Marshall super bass
Started by Geezer |
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4135 Views |
by Geezer |
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output tranny wiring
Started by Geezer |
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4128 Views |
by Geezer |
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5E3 heater wires @ low voltage
Started by Geezer |
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4566 Views |
by Geezer |
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Buying a DMM
Started by Geezer |
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4031 Views |
by Geezer |
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Matchless Spitfire inputs
Started by Geezer |
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5042 Views |
by Geezer |
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Very old Speakers from Music Manb
Started by Geezer |
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4113 Views |
by Geezer |
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bassman 100
Started by Geezer |
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4298 Views |
by Geezer |
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4571 Views |
by Geezer |
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Hoffman AB763 in DR Reissue
Started by Geezer |
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4051 Views |
by Geezer |
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NFB Questions
Started by Geezer |
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4026 Views |
by Geezer |
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Newbie Question - Combining Outputs
Started by Geezer |
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3941 Views |
by Geezer |
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Fender Ground Switch Question
Started by Geezer |
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4794 Views |
by Geezer |
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tube orientation of a bluesbreaker
Started by Geezer |
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4022 Views |
by Geezer |
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bassman working like dream now
Started by Geezer |
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3880 Views |
by Geezer |
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"touchy" Reverb on AB763 SR
Started by Geezer |
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3906 Views |
by Geezer |
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DC Heaters
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4032 Views |
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volume drop
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4088 Views |
by Geezer |
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3917 Views |
by Geezer |
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Cap job question
Started by Geezer |
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3878 Views |
by Geezer |
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new amp build
Started by Geezer |
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4053 Views |
by Geezer |
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floating heaters
Started by Geezer |
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3893 Views |
by Geezer |
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5E3 HUMmmmmm
Started by Geezer |
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4320 Views |
by Geezer |
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0 Replies
4071 Views |
by Geezer |
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dropping heater voltage
Started by Geezer |
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4799 Views |
by Geezer |
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5YE rectifier
Started by Geezer |
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4335 Views |
by Geezer |
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6l6 vs el34
Started by Geezer |
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4258 Views |
by Geezer |
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I have ? on pot install for revibe unit
Started by Geezer |
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4273 Views |
by Geezer |
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