Welcome To the Hoffman Amplifiers Forum
October 22, 2025, 11:48:48 pm
Welcome To the Hoffman Amplifiers ForumOctober 22, 2025, 11:48:48 pm | ||
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Bias for ECC99 Mini Vox AC30?
Started by roseblood11 |
9 Replies
4491 Views |
December 14, 2019, 04:48:41 pmby kagliostro |
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75 Replies
17088 Views |
December 14, 2019, 11:36:19 am by Jennings |
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One chassis ground or two?
Started by tony321owen |
16 Replies
6281 Views |
December 14, 2019, 11:35:40 am by jjasilli |
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4 Replies
3022 Views |
December 13, 2019, 05:35:05 pm by kagliostro |
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9 Replies
3485 Views |
December 12, 2019, 05:31:50 pm by Backwoods Joe |
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51 Replies
12318 Views |
December 12, 2019, 04:51:12 pm by Fiat_cc |
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Grid bias w/tremolo?
Started by yorgle |
24 Replies
7032 Views |
December 12, 2019, 03:27:15 pm by yorgle |
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Marshall JCM800 50MV w/ reverb repair
Started by Opry Audio |
4 Replies
2210 Views |
December 11, 2019, 09:49:59 pm by nandrewjackson |
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21 Replies
5755 Views |
December 11, 2019, 09:31:31 am by sluckey |
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10 Replies
4186 Views |
December 11, 2019, 04:41:12 am by pdf64 |
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Cathode bypass cap orientation question
Started by Tapsnap |
12 Replies
4767 Views |
December 11, 2019, 04:31:01 am by pdf64 |
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11 Replies
5480 Views |
December 10, 2019, 04:15:41 pm by cubis |
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11 Replies
3122 Views |
December 10, 2019, 10:26:59 am by centervolume |
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Grounding 6V6 Plexi
Started by leegold |
9 Replies
3180 Views |
December 09, 2019, 08:14:35 pm by glass54 |
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Gibson EH-185 6J7 version
Started by centervolume |
40 Replies
9339 Views |
December 09, 2019, 02:46:02 pm by bmccowan |
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Wiring 5e3 combo to use as a speaker cab
Started by mebond11 |
3 Replies
1867 Views |
December 09, 2019, 12:46:04 pm by mebond11 |
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2 x kt88 power amp
Started by AxelKay |
36 Replies
10516 Views |
December 09, 2019, 11:23:30 am by 66Strat |
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12 Replies
4171 Views |
December 09, 2019, 06:24:11 am by sluckey |
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advice on dumble clone
Started by vampwizzard |
4 Replies
2460 Views |
December 08, 2019, 08:40:58 pm by sluckey |
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8 Replies
3875 Views |
December 08, 2019, 07:58:46 pm by kagliostro |
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14 Replies
6213 Views |
December 07, 2019, 06:25:33 pm by jjasilli |
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Gauge wire on PT
Started by dude |
6 Replies
2106 Views |
December 06, 2019, 07:42:39 pm by dude |
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Quick Tremor-lator Question
Started by yorgle |
2 Replies
1762 Views |
December 06, 2019, 01:41:44 pm by yorgle |
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Add adjustable bias to Hiwatt DR504
Started by eahudimac |
4 Replies
4296 Views |
December 06, 2019, 10:23:39 am by eahudimac |
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Tube reverb project
Started by Colas LeGrippa |
24 Replies
6559 Views |
December 05, 2019, 09:52:52 pm by sluckey |
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Lead on cap can smoking and sizzling
Started by dude |
4 Replies
2161 Views |
December 04, 2019, 09:52:23 pm by dude |
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3 channel preamp hum issues
Started by Captain chunkulus « 1 2 3 » |
114 Replies
22559 Views |
December 04, 2019, 01:56:43 pm by Captain chunkulus |
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Red-Nek Circuity PortaBuzz B-15
Started by bnwitt |
4 Replies
2080 Views |
December 04, 2019, 01:38:52 pm by RWood |
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Vox AC-15 build reverb question
Started by shaun |
10 Replies
3997 Views |
December 04, 2019, 01:16:05 pm by shaun |
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9 Replies
7218 Views |
December 04, 2019, 11:38:21 am by kagliostro |
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2 Replies
2220 Views |
December 03, 2019, 11:16:45 pm by 1blueheron |
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Lacing turret board and RF interference
Started by mebond11 |
2 Replies
1776 Views |
December 03, 2019, 08:02:08 pm by mebond11 |
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Hoffman AB763 weak tremolo with 6L6GC's
Started by sam |
26 Replies
7468 Views |
December 03, 2019, 05:26:59 pm by sam |
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power reduction
Started by isaac_teller |
2 Replies
1715 Views |
December 03, 2019, 10:56:21 am by isaac_teller |
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Resistor wattage available
Started by dude |
8 Replies
2790 Views |
December 02, 2019, 08:40:03 pm by PRR |
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1990 red knob fender Twin
Started by nandrewjackson |
6 Replies
4116 Views |
December 02, 2019, 07:49:32 pm by nandrewjackson |
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Active FX loop for master volume?
Started by Big_Mike |
10 Replies
4334 Views |
December 02, 2019, 11:21:17 am by pdf64 |
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11 Replies
3504 Views |
December 02, 2019, 08:35:29 am by sluckey |
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Vox AC15 Tweed Deluxe hybrid w/ reverb schematic
Started by Opry Audio « 1 2 » |
63 Replies
15821 Views |
December 02, 2019, 01:07:11 am by Greg |
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2-ch hybryd ODS/ax84 P1/Superlite 18W
Started by adamG |
36 Replies
10113 Views |
November 28, 2019, 01:15:04 pm by shooter |
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Attitube G20
Started by big-ez |
10 Replies
5003 Views |
November 28, 2019, 10:27:20 am by shooter |
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Supro 88T Schematic / Power Xfmr Specs
Started by paulcblais |
5 Replies
3344 Views |
November 27, 2019, 07:31:07 pm by DummyLoad |
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25 Replies
10123 Views |
November 26, 2019, 06:26:49 pm by kagliostro |
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AO-43 Conversion schematic needed
Started by shaun |
22 Replies
8172 Views |
November 26, 2019, 04:32:41 pm by jojokeo |
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Voltage Doublers.........
Started by Jack_Hester |
20 Replies
8783 Views |
November 26, 2019, 03:04:05 pm by GEO62 |
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DSL - Master Volume Mod.. Buzz/Hum
Started by diddymix |
11 Replies
4040 Views |
November 26, 2019, 02:10:35 pm by jojokeo |
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'74 Twin Reverb Buzzing
Started by ChubeRules |
3 Replies
2113 Views |
November 26, 2019, 03:47:08 am by pdf64 |
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Hammond AO-44 OT ohm range?
Started by MWaldorf |
4 Replies
1903 Views |
November 25, 2019, 02:04:01 pm by MWaldorf |
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Hoffman 6v6
Started by Rockranger |
11 Replies
4115 Views |
November 25, 2019, 01:09:32 pm by Rockranger |
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Hoffman amps closing the month of December
Started by EL34 |
1 Replies
1989 Views |
November 25, 2019, 06:25:40 am by EL34 |
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