Welcome To the Hoffman Amplifiers Forum
April 25, 2026, 10:29:06 pm
Welcome To the Hoffman Amplifiers ForumApril 25, 2026, 10:29:06 pm | ||
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| 0 Members and 34 Guests are viewing this board. | ||||
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Variac Minimum Voltage
Started by ululufut |
11 Replies
6364 Views |
September 07, 2022, 11:44:28 pmby dude |
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25 Replies
10144 Views |
September 06, 2022, 06:21:00 pm by HotBluePlates |
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just to make sure...
Started by Bieworm |
12 Replies
6168 Views |
September 06, 2022, 10:42:17 am by 66Strat |
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x6 push pull tube amp primary?
Started by Balticnoiseforge |
1 Replies
3973 Views |
September 05, 2022, 04:02:24 pm by tubeswell |
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ENGL Retro 50 Schematic
Started by dpm309 |
13 Replies
6394 Views |
September 05, 2022, 04:41:54 am by d95err |
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1961 Super Amp Tremelo Problem
Started by plexi50 |
33 Replies
9160 Views |
September 04, 2022, 12:30:57 pm by shooter |
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Silvertone 1433 heater wiring
Started by Leevi |
11 Replies
5169 Views |
September 04, 2022, 10:32:39 am by Leevi |
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76 Replies
37506 Views |
September 04, 2022, 09:36:16 am by kagliostro |
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5E3
Started by Fictitiousfreedom |
19 Replies
8302 Views |
September 04, 2022, 07:51:52 am by Williamblake |
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Fender Blackface Bassman AA864 chassis
Started by Jamlid |
47 Replies
13431 Views |
September 03, 2022, 05:42:49 pm by Jamlid |
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Vibrochamp biasing
Started by Blooze |
35 Replies
14555 Views |
September 02, 2022, 06:25:59 pm by HotBluePlates |
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Since It Seems To Be Champ Amp Month...
Started by DummyLoad |
21 Replies
8753 Views |
September 02, 2022, 03:27:01 pm by DummyLoad |
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11 Replies
5685 Views |
September 02, 2022, 01:12:16 pm by tubeswell |
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PP OT Questions
Started by W5FH |
7 Replies
4530 Views |
September 02, 2022, 09:33:11 am by W5FH |
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Joeamazoo pentode front end
Started by goldstache |
2 Replies
3313 Views |
September 01, 2022, 12:38:04 am by goldstache |
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Puzzled by 6SN7 cathode connection
Started by jordan86 |
17 Replies
7789 Views |
August 31, 2022, 09:48:29 pm by jordan86 |
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Solid state CF harmonic trem
Started by Esquirefreak |
19 Replies
6672 Views |
August 31, 2022, 08:45:27 pm by Esquirefreak |
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TW Express build.
Started by joesatch |
24 Replies
7603 Views |
August 31, 2022, 06:10:05 pm by tubeswell |
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Stuck on a 6G15 build.
Started by Esquirefreak |
11 Replies
5268 Views |
August 31, 2022, 06:08:51 pm by Esquirefreak |
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5 Replies
4460 Views |
August 31, 2022, 12:05:40 pm by Bieworm |
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4 Replies
4767 Views |
August 31, 2022, 10:18:18 am by sluckey |
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12 Replies
5673 Views |
August 31, 2022, 05:44:04 am by HotBluePlates |
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3 Replies
3828 Views |
August 30, 2022, 04:04:39 pm by Williamblake |
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resisor and cap in series on cathode?
Started by joesatch |
29 Replies
8554 Views |
August 30, 2022, 12:37:02 pm by sluckey |
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27 Replies
8458 Views |
August 29, 2022, 03:35:25 pm by sluckey |
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5U4GB vs. 5R4GA vs. SS rectifier?
Started by Lectroid |
12 Replies
7372 Views |
August 29, 2022, 01:02:19 pm by Lectroid |
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2 Replies
3176 Views |
August 29, 2022, 12:10:24 pm by imgumby001 |
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9 Replies
5426 Views |
August 29, 2022, 11:42:55 am by PRR |
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12 Replies
5050 Views |
August 29, 2022, 11:17:23 am by zosobozo |
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14 Replies
7251 Views |
August 29, 2022, 10:57:02 am by MikeW86 |
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Grounding plan for OR120 clone
Started by focusbob |
2 Replies
3543 Views |
August 28, 2022, 11:43:27 pm by tubeswell |
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1 Replies
3284 Views |
August 28, 2022, 03:19:23 pm by thetragichero |
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82 JC120 - desperado
Started by fdesalvo |
3 Replies
3101 Views |
August 26, 2022, 12:13:47 pm by fdesalvo |
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Voltage drop with power tubes installed
Started by Ledvedder |
8 Replies
4884 Views |
August 25, 2022, 10:53:36 am by Ledvedder |
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1965 Marshall JTM 45 On Bench!!!
Started by plexi50 |
1 Replies
3426 Views |
August 25, 2022, 10:20:08 am by plexi50 |
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Sunn Solarus
Started by plexi50 |
14 Replies
7342 Views |
August 25, 2022, 10:10:25 am by plexi50 |
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Reverb Hum
Started by wsscott |
31 Replies
7869 Views |
August 25, 2022, 08:46:57 am by wsscott |
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HRD ML212 "Clone" Build Reverb Issue
Started by W5FH |
7 Replies
4235 Views |
August 24, 2022, 11:45:11 am by thetragichero |
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TungSol TS-272 Twin Triode
Started by W5FH |
0 Replies
2528 Views |
August 24, 2022, 08:59:41 am by W5FH |
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RCA 12ax7 vs Electro Harmonix
Started by cometphoton |
6 Replies
4748 Views |
August 23, 2022, 08:08:00 pm by bmccowan |
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A little PT help, if you please..
Started by mmrxcsr01 |
7 Replies
4173 Views |
August 23, 2022, 02:32:50 pm by thetragichero |
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Tighten up some flub on a half-power AC30?
Started by Cirrus |
2 Replies
3017 Views |
August 23, 2022, 10:15:48 am by Cirrus |
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DC heater supply
Started by joesatch |
4 Replies
3406 Views |
August 23, 2022, 02:12:47 am by kagliostro |
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4 Replies
3220 Views |
August 23, 2022, 12:59:36 am by acatlow@gmail.com |
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7 Replies
4136 Views |
August 22, 2022, 02:29:15 pm by PRR |
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Sunn Grid Noise
Started by plexi50 |
10 Replies
4290 Views |
August 22, 2022, 08:06:20 am by plexi50 |
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5881 vs 6L6GB
Started by imgumby001 |
7 Replies
4194 Views |
August 22, 2022, 05:46:56 am by HotBluePlates |
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Twin Reverb II Biasing Question
Started by dpm309 |
7 Replies
4468 Views |
August 21, 2022, 03:45:12 pm by dpm309 |
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4 Replies
3148 Views |
August 21, 2022, 12:15:31 pm by kagliostro |
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Help with ID of this resistor
Started by Apexelectric |
10 Replies
4639 Views |
August 20, 2022, 06:46:59 pm by Apexelectric |
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