Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 12:21:49 pm | ||
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120 VAC power amp, 240 VAC preamp?
Started by markmalin |
8 Replies
2713 Views |
by markmalin |
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22 Replies
8122 Views |
by HotBluePlates |
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Suggestions for a low watt amp
Started by liddokun |
39 Replies
11533 Views |
by liddokun |
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60 cycle hum
Started by Bieworm |
19 Replies
5486 Views |
by Bieworm |
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6 Replies
2545 Views |
by Backwoods Joe |
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Ampeg Reverberocket Reissue Mods
Started by davidb |
2 Replies
2274 Views |
by davidb |
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6 Replies
2223 Views |
by smackoj |
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Fender solid state Harvard combo
Started by phsyconoodler |
18 Replies
8523 Views |
by Latole |
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Blues Jr. Converted to AC15
Started by jamaio |
2 Replies
1999 Views |
by jamaio |
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First time I’ve seen this
Started by Blueboozer |
10 Replies
3098 Views |
by uki |
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0A2
Started by Stuff4bikes |
1 Replies
1826 Views |
by sluckey |
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Unusual tube query
Started by isaac_teller |
2 Replies
1969 Views |
by isaac_teller |
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Supertwin help needed
Started by howardmoon |
19 Replies
4753 Views |
by howardmoon |
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power tube 1 ohm to ground confusion
Started by joesatch |
16 Replies
4920 Views |
by Dyerseve726 |
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Build suggestions for a W02273 PT
Started by 72Blazer |
6 Replies
2814 Views |
by Dyerseve726 |
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Old Timey 6K6 build
Started by bmccowan |
17 Replies
4535 Views |
by bmccowan |
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How to Bias Fender PA 100 / Twin
Started by TerryD |
2 Replies
2388 Views |
by pdf64 |
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Enclosed VS Open Frame choke
Started by Jonas |
6 Replies
2693 Views |
by tubeswell |
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Sovtek MIG100H elusive hum
Started by luis.castillo |
5 Replies
2614 Views |
by luis.castillo |
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28 Replies
6511 Views |
by Soulfetish |
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16 Replies
4325 Views |
by pdf64 |
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Marshall Haze 40 Intermittent Volume Drop
Started by Travis8 |
10 Replies
3865 Views |
by Latole |
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Bias supply resistor question.
Started by joesatch |
1 Replies
1822 Views |
by sluckey |
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Do I have a problem?
Started by dbishopbliss |
5 Replies
2549 Views |
by glass54 |
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15 Replies
4462 Views |
by kagliostro |
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12 Replies
4073 Views |
by dwinstonwood |
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Filter cans and Hammond AO-43 chassis
Started by dude |
4 Replies
2170 Views |
by dude |
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Cathode biasing technique
Started by Voxbox |
21 Replies
4920 Views |
by HotBluePlates |
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5E3 Dumble Mods
Started by dpm309 |
3 Replies
2989 Views |
by Madjackhatter |
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Something New
Started by TIMBO |
3 Replies
1997 Views |
by kagliostro |
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12 Replies
4393 Views |
by fkitch |
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Princeton Reverb build trem problem
Started by punkykatt |
9 Replies
2621 Views |
by punkykatt |
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22 Replies
18403 Views |
by frankk |
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10 Replies
3307 Views |
by sluckey |
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AC inlet for petalboard
Started by luthierwnc |
5 Replies
2875 Views |
by luthierwnc |
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Pots for old amps
Started by schturlan |
14 Replies
4340 Views |
by Latole |
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Screen resistors
Started by fritz203 |
3 Replies
2073 Views |
by fritz203 |
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Cathodyne PPIVMV
Started by willwaush |
19 Replies
5816 Views |
by jojokeo |
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Kalamazoo 2 tremolo intensity
Started by isaac_teller |
7 Replies
3211 Views |
by sluckey |
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Mini amp build, 2 problems
Started by AmberB |
22 Replies
5433 Views |
by PRR |
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Line out for an AB763 amp?
Started by 72Blazer |
5 Replies
3052 Views |
by SILVERGUN |
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14 Replies
4410 Views |
by Dyerseve726 |
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Fender Faceplates
Started by jy67 |
2 Replies
2101 Views |
by jy67 |
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Suggestions for two extra triodes?
Started by dwinstonwood |
32 Replies
6885 Views |
by dwinstonwood |
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Applications for UL84 tubes
Started by Rontone |
5 Replies
2917 Views |
by kagliostro |
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Question about Merlin's grounding
Started by dwinstonwood |
33 Replies
7594 Views |
by dwinstonwood |
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Preamp tube proximity. marshall mod
Started by joesatch |
7 Replies
3217 Views |
by dwinstonwood |
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Do New Amps "Burn In?"
Started by DougGuy |
19 Replies
5221 Views |
by jojokeo |
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Power XFMR/Output XFMR relationship
Started by Dealbreaker |
15 Replies
4123 Views |
by Dealbreaker |
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Replacing electrolytic cap cans
Started by Erik Aa |
6 Replies
2433 Views |
by Erik Aa |
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