Welcome To the Hoffman Amplifiers Forum
March 12, 2026, 04:32:52 pm
Welcome To the Hoffman Amplifiers ForumMarch 12, 2026, 04:32:52 pm | ||
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Amp Chassis Materials
Started by Julio Emilio Jimenez Nava |
15 Replies
14840 Views |
October 04, 2011, 01:20:11 amby Rev D |
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24 Replies
12192 Views |
October 04, 2011, 12:55:18 am by Rev D |
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9 Replies
6532 Views |
October 03, 2011, 10:33:24 pm by stingray_65 |
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JTM 45 Board Layout
Started by Ed_Chambley |
3 Replies
4125 Views |
October 03, 2011, 11:53:51 am by sluckey |
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PLEXI GAIN 20 LOADS OF FUN
Started by TIMBO |
11 Replies
5288 Views |
October 03, 2011, 06:37:40 am by sluckey |
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PPIMV in a Twin Reverb
Started by chuggy |
5 Replies
5273 Views |
October 02, 2011, 08:17:38 pm by chuggy |
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Help with Gibson GA-5 Reissue
Started by valco |
16 Replies
11777 Views |
October 02, 2011, 12:22:49 am by valco |
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2 Replies
3343 Views |
October 01, 2011, 09:34:57 pm by skeezbo |
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paralleled SE output tubes
Started by Colas LeGrippa |
6 Replies
4395 Views |
October 01, 2011, 03:57:26 pm by tubeswell |
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Silverface reverb circuit
Started by carausius |
5 Replies
4306 Views |
October 01, 2011, 12:12:54 pm by carausius |
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Cathode Bypass Caps or Coupling Caps?
Started by zendragon63 |
11 Replies
6419 Views |
October 01, 2011, 09:44:17 am by HotBluePlates |
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ST-2 Rectifier
Started by dpm309 |
6 Replies
4376 Views |
September 30, 2011, 03:54:02 pm by HotBluePlates |
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dorm amp build
Started by jim |
5 Replies
4562 Views |
September 30, 2011, 03:48:04 pm by TIMBO |
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6 Replies
7102 Views |
September 30, 2011, 03:47:02 pm by frank57 |
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Cap question
Started by labb |
12 Replies
6070 Views |
September 29, 2011, 05:25:37 pm by FYL |
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Question of Curiosity + an odd-ball tube
Started by Shrapnel |
3 Replies
3764 Views |
September 29, 2011, 04:57:06 pm by jjasilli |
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13 Replies
6655 Views |
September 29, 2011, 01:44:17 pm by phsyconoodler |
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Laney VH100 OT failure?
Started by mrr3000gt |
7 Replies
5108 Views |
September 29, 2011, 08:43:48 am by mrr3000gt |
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37 Replies
12497 Views |
September 29, 2011, 08:07:33 am by frank57 |
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9 Replies
5895 Views |
September 29, 2011, 07:39:22 am by sluckey |
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Master volume for Tweed deluxe
Started by Leevi |
37 Replies
17269 Views |
September 29, 2011, 12:03:37 am by Leevi |
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Peavey Delta Blues repair
Started by six el six |
16 Replies
15456 Views |
September 28, 2011, 07:39:57 pm by six el six |
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3 Replies
8831 Views |
September 28, 2011, 10:38:10 am by terminalgs |
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How to troubleshoot ground hum?
Started by JustMike |
11 Replies
10426 Views |
September 28, 2011, 10:23:34 am by jjasilli |
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FYI- tubes get hot!
Started by firemedic |
11 Replies
6599 Views |
September 26, 2011, 04:31:45 pm by Merlin |
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Magnatone/Estey M-15 Schematic ??
Started by LooseChange |
5 Replies
5907 Views |
September 26, 2011, 10:44:11 am by terminalgs |
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Tone Pot Value
Started by blown240 |
7 Replies
5043 Views |
September 26, 2011, 10:19:15 am by jjasilli |
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Proofread schematic?
Started by John |
5 Replies
3898 Views |
September 26, 2011, 09:37:43 am by John |
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UL Screen Tap Question...
Started by Ritchie200 |
10 Replies
7056 Views |
September 26, 2011, 04:08:37 am by Merlin |
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5 Replies
4512 Views |
September 25, 2011, 09:11:32 pm by firemedic |
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MIEC capacitors, Tiawan
Started by Tiny_Daddy |
3 Replies
7241 Views |
September 25, 2011, 06:39:46 pm by FYL |
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Other two odd tubes - 6DN7 & 12JT6A
Started by kagliostro |
6 Replies
6991 Views |
September 25, 2011, 03:42:57 pm by kagliostro |
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3 Replies
5244 Views |
September 25, 2011, 03:01:02 pm by escopunk |
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Cap substitution
Started by Mars-Hall |
4 Replies
3495 Views |
September 25, 2011, 12:48:37 pm by bigsbybender |
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Tremolo question
Started by Leevi |
2 Replies
3120 Views |
September 25, 2011, 08:31:06 am by Tiny_Daddy |
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SFSR cathode resistors
Started by Mars-Hall |
1 Replies
2971 Views |
September 24, 2011, 10:39:17 pm by sluckey |
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Car Tube Radio into an Amp?
Started by blown240 |
8 Replies
4635 Views |
September 24, 2011, 08:44:21 pm by blown240 |
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Fender The Twin Reverb Problem
Started by plexi50 |
13 Replies
9636 Views |
September 24, 2011, 06:32:44 pm by plexi50 |
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Since it's SE week at Hoffman
Started by RicharD |
7 Replies
4330 Views |
September 23, 2011, 09:13:18 pm by DummyLoad |
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transformer impedence
Started by rdrgtr |
11 Replies
5378 Views |
September 23, 2011, 04:10:55 pm by bobmegantz |
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power tube coupling caps
Started by ernie_jr |
1 Replies
3179 Views |
September 23, 2011, 03:22:27 pm by FYL |
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23 Replies
13117 Views |
September 23, 2011, 02:15:50 am by Tone Junkie |
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What circuit is a 1973 Twin Reverb?
Started by panhead |
4 Replies
5584 Views |
September 22, 2011, 11:56:12 am by panhead |
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6sl7 vs 12ax7 and 7199 in ampegs
Started by ernie_jr |
12 Replies
11311 Views |
September 22, 2011, 11:55:19 am by panhead |
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Help Me ID This Transformer
Started by blown240 |
20 Replies
6880 Views |
September 21, 2011, 01:36:55 pm by kagliostro |
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Musicman HD130 on the bench
Started by LooseChange |
16 Replies
10840 Views |
September 21, 2011, 09:51:15 am by km888 |
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JTM 45 and Caps
Started by Ed_Chambley |
7 Replies
5391 Views |
September 21, 2011, 01:16:27 am by The_Gaz |
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Fender reverb - go figure
Started by Tiny_Daddy |
11 Replies
5639 Views |
September 20, 2011, 10:53:42 pm by HotBluePlates |
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3 Replies
3261 Views |
September 20, 2011, 06:36:42 pm by tubenit |
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wiring a 2203 PT
Started by phsyconoodler |
12 Replies
8144 Views |
September 20, 2011, 02:03:51 pm by jojokeo |
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