Welcome To the Hoffman Amplifiers Forum
July 14, 2026, 09:35:35 am
Welcome To the Hoffman Amplifiers ForumJuly 14, 2026, 09:35:35 am | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 67 Guests are viewing this board. | ||||
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16 Replies
8508 Views |
June 25, 2022, 03:18:17 pmby bbmade |
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New Build 6v6 Tweed Twin HP
Started by JGk |
2 Replies
3990 Views |
June 24, 2022, 10:31:39 am by uki |
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85 Replies
27659 Views |
June 24, 2022, 06:57:01 am by Eythor |
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6 Replies
5789 Views |
June 23, 2022, 03:33:02 pm by smilan |
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10 Replies
7333 Views |
June 23, 2022, 12:17:28 pm by tubeswell |
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output transformer compatibility
Started by j_bruce |
3 Replies
4296 Views |
June 23, 2022, 11:37:00 am by HotBluePlates |
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NFB tap question
Started by joesatch |
1 Replies
4068 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
5223 Views |
June 22, 2022, 11:53:51 pm by tubeswell |
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3 Replies
5512 Views |
June 22, 2022, 03:08:28 pm by Latole |
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4 Replies
6166 Views |
June 22, 2022, 04:49:53 am by nemoi |
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one-knob tone stack
Started by burt_toast |
12 Replies
10214 Views |
June 21, 2022, 11:45:44 pm by thetragichero |
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10 Replies
7220 Views |
June 21, 2022, 04:06:11 pm by nandrewjackson |
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Transistor used for tremolo?
Started by BadCatCubII |
8 Replies
5763 Views |
June 21, 2022, 09:36:12 am by BadCatCubII |
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Ampeg V4B 1971
Started by Colas LeGrippa |
13 Replies
5537 Views |
June 20, 2022, 07:59:45 pm by owen |
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Cascode?
Started by dragonbat13 |
1 Replies
4040 Views |
June 20, 2022, 07:50:35 pm by HotBluePlates |
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11 Replies
6299 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
5261 Views |
June 20, 2022, 12:10:19 pm by frankenxtein |
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Russian substitute for 12AT7
Started by isaac_teller |
2 Replies
4836 Views |
June 20, 2022, 09:05:30 am by isaac_teller |
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Hammond Rebuild Layout Advice
Started by jordan86 |
3 Replies
4037 Views |
June 18, 2022, 10:36:30 pm by glass54 |
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Magnatone Varsity Reverb
Started by luthiernc |
1 Replies
3992 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
5111 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
4683 Views |
June 17, 2022, 04:24:57 pm by PRR |
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22 Replies
9476 Views |
June 17, 2022, 04:10:54 pm by sluckey |
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Diodes for 1970 Twin Reverb
Started by bbmade |
2 Replies
4334 Views |
June 17, 2022, 12:23:06 pm by bbmade |
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1 Replies
3931 Views |
June 17, 2022, 11:31:38 am by sluckey |
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Steel guitar tube input preamp
Started by Swampertech |
2 Replies
4111 Views |
June 17, 2022, 11:03:13 am by Swampertech |
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24 Replies
8284 Views |
June 17, 2022, 04:33:25 am by shooter |
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Preamp out help
Started by joesatch |
7 Replies
4323 Views |
June 16, 2022, 06:53:46 am by nandrewjackson |
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Old Topic , Channel Switching
Started by HighFlyingV |
4 Replies
4850 Views |
June 16, 2022, 01:09:51 am by HighFlyingV |
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JTM45 Radiospares Impedance selector
Started by jrgtwo |
7 Replies
5199 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
6662 Views |
June 15, 2022, 01:31:06 pm by Kesi from Hungary |
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6 Replies
5126 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
6080 Views |
June 13, 2022, 12:17:09 pm by waldner |
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PT wiring question / confirmation
Started by Bieworm |
3 Replies
4200 Views |
June 13, 2022, 06:39:14 am by sluckey |
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Really cheap pilot lamp !
Started by uki |
16 Replies
7719 Views |
June 13, 2022, 05:13:03 am by owen |
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Minimum dropping resistors?
Started by joesatch |
27 Replies
9100 Views |
June 13, 2022, 12:01:21 am by tubeswell |
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Gibson GA-8 1962 Discoverer
Started by vampwizzard |
12 Replies
7752 Views |
June 12, 2022, 05:59:25 pm by vampwizzard |
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18 Replies
7603 Views |
June 12, 2022, 05:48:33 pm by scstill |
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4 band EQ schematic??
Started by hesamadman |
26 Replies
19872 Views |
June 12, 2022, 02:58:13 am by kagliostro |
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New DR project sanity check?
Started by Lectroid |
17 Replies
7212 Views |
June 11, 2022, 07:58:12 pm by pdf64 |
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3 Replies
4372 Views |
June 10, 2022, 04:13:10 pm by ebulakowski |
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Masco tweak
Started by Diverted |
14 Replies
8371 Views |
June 10, 2022, 01:00:29 pm by sluckey |
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Bassman 5F6A fun Build
Started by p2pAmps |
0 Replies
4913 Views |
June 10, 2022, 07:40:21 am by p2pAmps |
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11 Replies
7714 Views |
June 10, 2022, 05:07:44 am by walkman |
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harmonic vibrato questions
Started by uki |
20 Replies
7717 Views |
June 10, 2022, 04:37:25 am by shooter |
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NFB circuit help
Started by joesatch |
4 Replies
4069 Views |
June 10, 2022, 02:28:52 am by nandrewjackson |
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Splitting channels
Started by Diverted |
1 Replies
3665 Views |
June 10, 2022, 01:38:25 am by d95err |
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Help with AS-05T200 PT rectification
Started by joesatch |
4 Replies
4218 Views |
June 09, 2022, 10:27:35 pm by joesatch |
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5K primary for EL34s
Started by dude |
2 Replies
4274 Views |
June 09, 2022, 09:08:36 pm by dude |
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Electrolytic Capacitor Value
Started by plexi50 |
2 Replies
3936 Views |
June 09, 2022, 06:51:55 pm by plexi50 |
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