Welcome To the Hoffman Amplifiers Forum
January 24, 2026, 05:20:20 am
Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 05:20:20 am | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 39 Guests are viewing this board. | ||||
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6JB5 Build Docs for isaac_teller
Started by DummyLoad |
3 Replies
2994 Views |
July 04, 2022, 01:51:35 amby DummyLoad |
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Deluxe Reverb standby switch
Started by Lectroid |
16 Replies
6852 Views |
July 03, 2022, 09:40:47 pm by thetragichero |
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Vampower Mk 1 100 watt head
Started by dwinstonwood |
0 Replies
3136 Views |
July 03, 2022, 07:00:11 pm by dwinstonwood |
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Installing a choke??
Started by Lectroid |
17 Replies
5268 Views |
July 03, 2022, 12:07:16 pm by Lectroid |
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Standalone preamp question.
Started by dragonbat13 |
2 Replies
2741 Views |
July 03, 2022, 08:56:45 am by tmknight |
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2 Replies
3352 Views |
July 03, 2022, 08:43:45 am by pdf64 |
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pedal pcb cap polarity markings
Started by joesatch |
8 Replies
3927 Views |
July 02, 2022, 11:14:41 am by kagliostro |
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purple wire Antek PT
Started by joesatch |
2 Replies
2813 Views |
July 01, 2022, 07:39:56 pm by ok_state_blues |
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Choke specifications
Started by acheld |
9 Replies
4673 Views |
June 30, 2022, 05:40:30 pm by mresistor |
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2 Replies
2865 Views |
June 30, 2022, 01:56:14 pm by rundgrenrules |
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4-band EQ for 763 type circuit
Started by Swampertech |
0 Replies
2876 Views |
June 30, 2022, 07:37:00 am by Swampertech |
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Blue illuminated rocker switch source?
Started by joesatch |
11 Replies
4318 Views |
June 29, 2022, 02:24:41 pm by PRR |
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VOX AC30 Power Lamp Flickering
Started by dpm309 |
3 Replies
2743 Views |
June 29, 2022, 07:44:00 am by dwinstonwood |
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Vibrato sound on a non-vibrato amp?
Started by DuaneOh |
12 Replies
4666 Views |
June 28, 2022, 09:19:20 am by Lectroid |
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8 Replies
3941 Views |
June 26, 2022, 10:40:19 am by kagliostro |
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16 Replies
5726 Views |
June 25, 2022, 03:18:17 pm by bbmade |
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New Build 6v6 Tweed Twin HP
Started by JGk |
2 Replies
2512 Views |
June 24, 2022, 10:31:39 am by uki |
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85 Replies
18520 Views |
June 24, 2022, 06:57:01 am by Eythor |
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6 Replies
4143 Views |
June 23, 2022, 03:33:02 pm by smilan |
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10 Replies
4968 Views |
June 23, 2022, 12:17:28 pm by tubeswell |
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output transformer compatibility
Started by j_bruce |
3 Replies
2724 Views |
June 23, 2022, 11:37:00 am by HotBluePlates |
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NFB tap question
Started by joesatch |
1 Replies
2560 Views |
June 23, 2022, 09:05:16 am by sluckey |
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Old Ampro PP 6v6 center tap question
Started by goldstache |
10 Replies
3541 Views |
June 22, 2022, 11:53:51 pm by tubeswell |
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3 Replies
3579 Views |
June 22, 2022, 03:08:28 pm by Latole |
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4 Replies
4169 Views |
June 22, 2022, 04:49:53 am by nemoi |
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one-knob tone stack
Started by burt_toast |
12 Replies
7941 Views |
June 21, 2022, 11:45:44 pm by thetragichero |
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10 Replies
5311 Views |
June 21, 2022, 04:06:11 pm by nandrewjackson |
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Transistor used for tremolo?
Started by BadCatCubII |
8 Replies
3837 Views |
June 21, 2022, 09:36:12 am by BadCatCubII |
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Ampeg V4B 1971
Started by Colas LeGrippa |
13 Replies
3832 Views |
June 20, 2022, 07:59:45 pm by owen |
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Cascode?
Started by dragonbat13 |
1 Replies
2549 Views |
June 20, 2022, 07:50:35 pm by HotBluePlates |
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11 Replies
4224 Views |
June 20, 2022, 05:11:59 pm by shooter |
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Haven't done anything to this Zenith
Started by frankenxtein |
5 Replies
3471 Views |
June 20, 2022, 12:10:19 pm by frankenxtein |
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Russian substitute for 12AT7
Started by isaac_teller |
2 Replies
3324 Views |
June 20, 2022, 09:05:30 am by isaac_teller |
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Hammond Rebuild Layout Advice
Started by jordan86 |
3 Replies
2504 Views |
June 18, 2022, 10:36:30 pm by glass54 |
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Magnatone Varsity Reverb
Started by luthiernc |
1 Replies
2398 Views |
June 18, 2022, 05:09:37 pm by tubeswell |
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Raising the 1M resistor on the input.
Started by valvetones |
7 Replies
3481 Views |
June 18, 2022, 07:08:31 am by pdf64 |
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Is this idea crazy? What would you do?
Started by Diverted |
6 Replies
3133 Views |
June 17, 2022, 04:24:57 pm by PRR |
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22 Replies
6531 Views |
June 17, 2022, 04:10:54 pm by sluckey |
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Orange TH30 questions
Started by Bieworm |
8 Replies
5233 Views |
June 17, 2022, 02:01:17 pm by Keppy |
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Diodes for 1970 Twin Reverb
Started by bbmade |
2 Replies
2703 Views |
June 17, 2022, 12:23:06 pm by bbmade |
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1 Replies
2427 Views |
June 17, 2022, 11:31:38 am by sluckey |
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Steel guitar tube input preamp
Started by Swampertech |
2 Replies
2518 Views |
June 17, 2022, 11:03:13 am by Swampertech |
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24 Replies
6213 Views |
June 17, 2022, 04:33:25 am by shooter |
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Preamp out help
Started by joesatch |
7 Replies
2944 Views |
June 16, 2022, 06:53:46 am by nandrewjackson |
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Old Topic , Channel Switching
Started by HighFlyingV |
4 Replies
3027 Views |
June 16, 2022, 01:09:51 am by HighFlyingV |
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JTM45 Radiospares Impedance selector
Started by jrgtwo |
7 Replies
3568 Views |
June 15, 2022, 03:45:00 pm by jrgtwo |
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Fender champ 12 messup
Started by Kesi from Hungary |
10 Replies
4531 Views |
June 15, 2022, 01:31:06 pm by Kesi from Hungary |
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6 Replies
3312 Views |
June 13, 2022, 01:58:01 pm by JustTheDad |
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How to add NFB to 18 Watt Stout Reverb
Started by waldner |
15 Replies
4274 Views |
June 13, 2022, 12:17:09 pm by waldner |
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PT wiring question / confirmation
Started by Bieworm |
3 Replies
2579 Views |
June 13, 2022, 06:39:14 am by sluckey |
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