Welcome To the Hoffman Amplifiers ForumApril 28, 2026, 04:02:31 pm | ||
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World War II Champ Project
Started by eleventeen |
2 Replies
3949 Views |
by eleventeen |
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3 Replies
3984 Views |
by PRR |
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Original 5E3 Info Please!
Started by Platefire |
18 Replies
16958 Views |
by Platefire |
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4 Replies
5220 Views |
by harryk |
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2 Replies
3953 Views |
by eleventeen |
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New Plexi 50 build
Started by bluestone |
10 Replies
6445 Views |
by simonallaway |
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2 Replies
3831 Views |
by Fresh_Start |
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Replicate a vintage transformer
Started by atmars |
5 Replies
4943 Views |
by DummyLoad |
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GA-40 RC network - what's the point??
Started by LooseChange |
9 Replies
5961 Views |
by PRR |
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Reduce beating in bias vary tremolos
Started by bnwitt |
4 Replies
4652 Views |
by bnwitt |
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11 Replies
11633 Views |
by tubeswell |
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18 Replies
14340 Views |
by jojokeo |
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NASTY PRINCETON
Started by TIMBO |
6 Replies
5406 Views |
by TIMBO |
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1/50 NP capacitor question
Started by Bub |
3 Replies
6700 Views |
by Tiny_Daddy |
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Oddball Marshall 2046 Specialist
Started by Rev D |
0 Replies
4995 Views |
by Rev D |
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Hi - Low Vol switch ?
Started by tubenit |
20 Replies
9642 Views |
by jjasilli |
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4 Replies
5420 Views |
by tubesornothing |
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21 Replies
14361 Views |
by LooseChange |
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move relay ft. switch jack
Started by tubenit |
6 Replies
5319 Views |
by DummyLoad |
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3 Replies
4573 Views |
by sluckey |
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Marshall Major phase inverter
Started by navdave |
4 Replies
5473 Views |
by Ritchie200 |
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6 Replies
5912 Views |
by Rev D |
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Dual pentode/triode tubes in preamp?
Started by Fresh_Start |
7 Replies
7750 Views |
by bigdaddy |
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Tremolo troubles ab763 new build
Started by Tone Junkie |
9 Replies
6075 Views |
by Tone Junkie |
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Killer ant mod
Started by bigdaddy |
3 Replies
7390 Views |
by bigdaddy |
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Help with negative bias voltage
Started by J Rindt |
5 Replies
7054 Views |
by sluckey |
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What's this filter??
Started by Geezer |
7 Replies
5206 Views |
by FYL |
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3 Replies
3975 Views |
by nateflanigan |
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Replacing PT in Princeton (AA1164)
Started by dude |
3 Replies
4122 Views |
by Fresh_Start |
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reverb issues ab763 circuit new build
Started by Tone Junkie |
3 Replies
4036 Views |
by sluckey |
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changing PI bias
Started by phsyconoodler |
6 Replies
6045 Views |
by phsyconoodler |
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12V heater to raise B+?
Started by birt |
10 Replies
6658 Views |
by gar13 |
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JCM800 clone 6550R high freq. squeal
Started by mamps |
4 Replies
4425 Views |
by mamps |
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12 Replies
8577 Views |
by Tone Junkie |
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AB763 Deluxe Reverb with 6v6
Started by moonbird |
9 Replies
7290 Views |
by sluckey |
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Single channel AB763 design question?
Started by markmalin |
11 Replies
8409 Views |
by markmalin |
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Smokin' PT
Started by bluestone |
22 Replies
8760 Views |
by bluestone |
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Fixing Noise
Started by rafe |
2 Replies
3677 Views |
by rafe |
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5 Replies
5073 Views |
by kagliostro |
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12 Replies
7489 Views |
by toomanyslurpees |
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Bogen CHB-35A PA amp
Started by punkykatt |
8 Replies
7233 Views |
by dwp |
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2 Replies
6201 Views |
by kagliostro |
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Need help tracking down a "buzz"
Started by markmalin |
22 Replies
11489 Views |
by markmalin |
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Mstr vol pot value?
Started by tubenit |
5 Replies
5513 Views |
by jojokeo |
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Fender AB763 onboard reverb too trebley
Started by flora |
9 Replies
7351 Views |
by phsyconoodler |
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2204 or Hot Switch
Started by macula56 |
3 Replies
4229 Views |
by rzenc |
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3 Replies
5750 Views |
by macula56 |
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Tonal Difference anyone? Choke types
Started by dwp |
4 Replies
6178 Views |
by FYL |
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MOVED: My time for building is over....
Started by tubenit |
0 Replies
4098 Views |
by tubenit |
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1970's JMP50 PT voltage??
Started by bnwitt |
4 Replies
4641 Views |
by bnwitt |
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