Welcome To the Hoffman Amplifiers Forum
October 22, 2025, 05:15:25 pm
Welcome To the Hoffman Amplifiers ForumOctober 22, 2025, 05:15:25 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 62 Guests are viewing this board. | ||||
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VOX AC30 Power Lamp Flickering
Started by dpm309 |
3 Replies
2067 Views |
June 29, 2022, 07:44:00 amby dwinstonwood |
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Vibrato sound on a non-vibrato amp?
Started by DuaneOh |
12 Replies
3510 Views |
June 28, 2022, 09:19:20 am by Lectroid |
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8 Replies
3201 Views |
June 26, 2022, 10:40:19 am by kagliostro |
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16 Replies
4524 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
1919 Views |
June 24, 2022, 10:31:39 am by uki |
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85 Replies
14788 Views |
June 24, 2022, 06:57:01 am by Eythor |
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6 Replies
3347 Views |
June 23, 2022, 03:33:02 pm by smilan |
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10 Replies
3907 Views |
June 23, 2022, 12:17:28 pm by tubeswell |
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output transformer compatibility
Started by j_bruce |
3 Replies
2061 Views |
June 23, 2022, 11:37:00 am by HotBluePlates |
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NFB tap question
Started by joesatch |
1 Replies
1969 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
2701 Views |
June 22, 2022, 11:53:51 pm by tubeswell |
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3 Replies
2577 Views |
June 22, 2022, 03:08:28 pm by Latole |
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4 Replies
3210 Views |
June 22, 2022, 04:49:53 am by nemoi |
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one-knob tone stack
Started by burt_toast |
12 Replies
6781 Views |
June 21, 2022, 11:45:44 pm by thetragichero |
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10 Replies
4289 Views |
June 21, 2022, 04:06:11 pm by nandrewjackson |
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Transistor used for tremolo?
Started by BadCatCubII |
8 Replies
2951 Views |
June 21, 2022, 09:36:12 am by BadCatCubII |
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Ampeg V4B 1971
Started by Colas LeGrippa |
13 Replies
2913 Views |
June 20, 2022, 07:59:45 pm by owen |
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Cascode?
Started by dragonbat13 |
1 Replies
1914 Views |
June 20, 2022, 07:50:35 pm by HotBluePlates |
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11 Replies
3253 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
2672 Views |
June 20, 2022, 12:10:19 pm by frankenxtein |
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Russian substitute for 12AT7
Started by isaac_teller |
2 Replies
2681 Views |
June 20, 2022, 09:05:30 am by isaac_teller |
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Hammond Rebuild Layout Advice
Started by jordan86 |
3 Replies
1810 Views |
June 18, 2022, 10:36:30 pm by glass54 |
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Magnatone Varsity Reverb
Started by luthiernc |
1 Replies
1769 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
2697 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
2466 Views |
June 17, 2022, 04:24:57 pm by PRR |
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22 Replies
5027 Views |
June 17, 2022, 04:10:54 pm by sluckey |
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Orange TH30 questions
Started by Bieworm |
8 Replies
4081 Views |
June 17, 2022, 02:01:17 pm by Keppy |
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Diodes for 1970 Twin Reverb
Started by bbmade |
2 Replies
2037 Views |
June 17, 2022, 12:23:06 pm by bbmade |
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1 Replies
1765 Views |
June 17, 2022, 11:31:38 am by sluckey |
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Steel guitar tube input preamp
Started by Swampertech |
2 Replies
1839 Views |
June 17, 2022, 11:03:13 am by Swampertech |
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24 Replies
4985 Views |
June 17, 2022, 04:33:25 am by shooter |
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Preamp out help
Started by joesatch |
7 Replies
2279 Views |
June 16, 2022, 06:53:46 am by nandrewjackson |
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Old Topic , Channel Switching
Started by HighFlyingV |
4 Replies
2266 Views |
June 16, 2022, 01:09:51 am by HighFlyingV |
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JTM45 Radiospares Impedance selector
Started by jrgtwo |
7 Replies
2744 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
3485 Views |
June 15, 2022, 01:31:06 pm by Kesi from Hungary |
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6 Replies
2436 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
3336 Views |
June 13, 2022, 12:17:09 pm by waldner |
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PT wiring question / confirmation
Started by Bieworm |
3 Replies
1861 Views |
June 13, 2022, 06:39:14 am by sluckey |
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Really cheap pilot lamp !
Started by uki |
16 Replies
4103 Views |
June 13, 2022, 05:13:03 am by owen |
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Minimum dropping resistors?
Started by joesatch |
27 Replies
4600 Views |
June 13, 2022, 12:01:21 am by tubeswell |
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Gibson GA-8 1962 Discoverer
Started by vampwizzard |
12 Replies
4071 Views |
June 12, 2022, 05:59:25 pm by vampwizzard |
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18 Replies
4043 Views |
June 12, 2022, 05:48:33 pm by scstill |
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4 band EQ schematic??
Started by hesamadman |
26 Replies
15464 Views |
June 12, 2022, 02:58:13 am by kagliostro |
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New DR project sanity check?
Started by Lectroid |
17 Replies
4038 Views |
June 11, 2022, 07:58:12 pm by pdf64 |
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3 Replies
2109 Views |
June 10, 2022, 04:13:10 pm by ebulakowski |
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Masco tweak
Started by Diverted |
14 Replies
5157 Views |
June 10, 2022, 01:00:29 pm by sluckey |
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Bassman 5F6A fun Build
Started by p2pAmps |
0 Replies
2051 Views |
June 10, 2022, 07:40:21 am by p2pAmps |
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11 Replies
4647 Views |
June 10, 2022, 05:07:44 am by walkman |
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harmonic vibrato questions
Started by uki |
20 Replies
3977 Views |
June 10, 2022, 04:37:25 am by shooter |
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NFB circuit help
Started by joesatch |
4 Replies
1924 Views |
June 10, 2022, 02:28:52 am by nandrewjackson |
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