Welcome To the Hoffman Amplifiers ForumOctober 22, 2025, 03:16:06 pm | ||
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Rob Robinette Champ Micro Build
Started by AndrewD |
6 Replies
2998 Views |
![]() by kagliostro |
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Weird power amp wiring
Started by Leevi |
3 Replies
2179 Views |
![]() by PRR |
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21 Replies
4948 Views |
![]() by pdf64 |
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8 Replies
2979 Views |
![]() by bmccowan |
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Gibson GA-18T Tremolo
Started by Blooze |
10 Replies
3320 Views |
![]() by sluckey |
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1 Replies
1765 Views |
![]() by 72Blazer |
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PP valve amp KT88 BIAS-question
Started by cfortner |
22 Replies
5029 Views |
![]() by cfortner |
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Filmosound 202 Help
Started by oogabooga23 |
6 Replies
2844 Views |
![]() by BrainDeadAmps |
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139 Replies
22799 Views |
![]() by acheld |
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Vox AC15C1 Burning 5 Watt Resistors
Started by Pavels07 |
10 Replies
4113 Views |
![]() by AmberB |
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Channel switch grid reference
Started by BrainDeadAmps |
2 Replies
2112 Views |
![]() by BrainDeadAmps |
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32 Replies
7768 Views |
![]() by munkeyboy |
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13 Replies
4240 Views |
![]() by sluckey |
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Fender Twin Reverb Troubleshooting
Started by NoDough |
20 Replies
6603 Views |
![]() by mresistor |
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How to read B+ current on my '69 Vox AC30?
Started by jhanly |
11 Replies
3281 Views |
![]() by jhanly |
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SE Amp Project
Started by Rontone |
7 Replies
2555 Views |
![]() by AmberB |
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4 Replies
2045 Views |
![]() by Buck Webster |
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Line out Issue
Started by BrainDeadAmps |
4 Replies
2117 Views |
![]() by sluckey |
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What to build?
Started by squierstrat |
11 Replies
2962 Views |
![]() by squierstrat |
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Hammond 290 Series Ratings
Started by W5FH |
8 Replies
3456 Views |
![]() by acheld |
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cathode follower and the preceeding stage
Started by 12AX7 |
18 Replies
6321 Views |
![]() by marshallguy |
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AB763 nornal channel mod
Started by joesatch |
13 Replies
3146 Views |
![]() by dwinstonwood |
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Single ended "Mariace" finished
Started by rafaelctt |
9 Replies
3237 Views |
![]() by rafaelctt |
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Vox AC15C1 reverb tank question
Started by Electron Tornado |
1 Replies
1890 Views |
![]() by Latole |
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Anti-parallel rectifier
Started by BrainDeadAmps |
9 Replies
2707 Views |
![]() by astronomicum |
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My amp build sounds like a theremin
Started by Duncan |
20 Replies
4462 Views |
![]() by sluckey |
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16 Replies
4366 Views |
![]() by sluckey |
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Epiphone Electar Century AC-DC 1940
Started by Apexelectric |
27 Replies
9114 Views |
![]() by TheAudioMechanic |
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Less is more: 25uF instead of 50
Started by Colas LeGrippa |
4 Replies
2253 Views |
![]() by Colas LeGrippa |
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Fender Musicmaster Bass Amp
Started by TIMBO |
20 Replies
14924 Views |
![]() by TIMBO |
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Driver for KT88 quad?
Started by Balticnoiseforge |
8 Replies
3221 Views |
![]() by Balticnoiseforge |
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Princeton Reverb with 6AQ5 tubes
Started by Bieworm |
17 Replies
5122 Views |
![]() by Bieworm |
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10 Replies
3023 Views |
![]() by tubenit |
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Low Voltage JTM45 - Maybe?
Started by dbishopbliss |
8 Replies
3203 Views |
![]() by pdf64 |
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2 Replies
2025 Views |
![]() by Platefire |
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6G7A Bandmaster Tremolo Noise?
Started by jazjamr |
3 Replies
1919 Views |
![]() by jazjamr |
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6P1P wiring
Started by Bieworm |
3 Replies
2145 Views |
![]() by HotBluePlates |
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Head cab shielding
Started by Blooze |
8 Replies
2920 Views |
![]() by AlNewman |
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Hoffman Stout Reverb Mod?
Started by Lectroid |
14 Replies
3494 Views |
![]() by tubenit |
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UF4007 diode
Started by dude |
11 Replies
3736 Views |
![]() by dude |
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73 Replies
14572 Views |
![]() by martiro7 |
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7 Replies
2945 Views |
![]() by jackplug1 |
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4 Replies
2872 Views |
![]() by sluckey |
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Low Voltage Tube for Learning?
Started by AndrewD |
12 Replies
3477 Views |
![]() by HotBluePlates |
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Help Identifying Newcomb Amplifier
Started by W5FH |
3 Replies
2286 Views |
![]() by W5FH |
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Amplifier noisy nothing plugged
Started by Colas LeGrippa |
9 Replies
2667 Views |
![]() by Colas LeGrippa |
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Marshall 2550 leds
Started by Leevi |
1 Replies
1819 Views |
![]() by pdf64 |
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Uneven/unbalanced heater voltage
Started by Duncan |
6 Replies
2321 Views |
![]() by Duncan |
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5 Replies
2431 Views |
![]() by pdf64 |
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10w 6L6 champ AA764
Started by johngovan |
17 Replies
7701 Views |
![]() by kagliostro |
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