Welcome To the Hoffman Amplifiers Forum
January 24, 2026, 06:55:30 pm
Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 06:55:30 pm | ||
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9 Replies
5480 Views |
September 29, 2011, 07:39:22 amby sluckey |
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Master volume for Tweed deluxe
Started by Leevi |
37 Replies
16712 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
14876 Views |
September 28, 2011, 07:39:57 pm by six el six |
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3 Replies
8410 Views |
September 28, 2011, 10:38:10 am by terminalgs |
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How to troubleshoot ground hum?
Started by JustMike |
11 Replies
9980 Views |
September 28, 2011, 10:23:34 am by jjasilli |
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FYI- tubes get hot!
Started by firemedic |
11 Replies
6062 Views |
September 26, 2011, 04:31:45 pm by Merlin |
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Magnatone/Estey M-15 Schematic ??
Started by LooseChange |
5 Replies
5573 Views |
September 26, 2011, 10:44:11 am by terminalgs |
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Tone Pot Value
Started by blown240 |
7 Replies
4735 Views |
September 26, 2011, 10:19:15 am by jjasilli |
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Proofread schematic?
Started by John |
5 Replies
3565 Views |
September 26, 2011, 09:37:43 am by John |
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UL Screen Tap Question...
Started by Ritchie200 |
10 Replies
6631 Views |
September 26, 2011, 04:08:37 am by Merlin |
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5 Replies
4184 Views |
September 25, 2011, 09:11:32 pm by firemedic |
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MIEC capacitors, Tiawan
Started by Tiny_Daddy |
3 Replies
6904 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
6670 Views |
September 25, 2011, 03:42:57 pm by kagliostro |
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3 Replies
4947 Views |
September 25, 2011, 03:01:02 pm by escopunk |
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Cap substitution
Started by Mars-Hall |
4 Replies
3209 Views |
September 25, 2011, 12:48:37 pm by bigsbybender |
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Tremolo question
Started by Leevi |
2 Replies
2797 Views |
September 25, 2011, 08:31:06 am by Tiny_Daddy |
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SFSR cathode resistors
Started by Mars-Hall |
1 Replies
2682 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
4338 Views |
September 24, 2011, 08:44:21 pm by blown240 |
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Fender The Twin Reverb Problem
Started by plexi50 |
13 Replies
9251 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
4033 Views |
September 23, 2011, 09:13:18 pm by DummyLoad |
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transformer impedence
Started by rdrgtr |
11 Replies
5055 Views |
September 23, 2011, 04:10:55 pm by bobmegantz |
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power tube coupling caps
Started by ernie_jr |
1 Replies
2920 Views |
September 23, 2011, 03:22:27 pm by FYL |
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23 Replies
12646 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
5118 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
10832 Views |
September 22, 2011, 11:55:19 am by panhead |
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Help Me ID This Transformer
Started by blown240 |
20 Replies
6445 Views |
September 21, 2011, 01:36:55 pm by kagliostro |
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Musicman HD130 on the bench
Started by LooseChange |
16 Replies
10415 Views |
September 21, 2011, 09:51:15 am by km888 |
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JTM 45 and Caps
Started by Ed_Chambley |
7 Replies
4986 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
5241 Views |
September 20, 2011, 10:53:42 pm by HotBluePlates |
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3 Replies
2970 Views |
September 20, 2011, 06:36:42 pm by tubenit |
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wiring a 2203 PT
Started by phsyconoodler |
12 Replies
7723 Views |
September 20, 2011, 02:03:51 pm by jojokeo |
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To change or not to change (OT)
Started by Cups |
6 Replies
3889 Views |
September 20, 2011, 12:26:56 pm by sluckey |
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MOVED: Amp Show
Started by EL34 |
0 Replies
2415 Views |
September 19, 2011, 05:51:19 pm by EL34 |
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Bias Pots
Started by Ed_Chambley |
7 Replies
5080 Views |
September 19, 2011, 05:42:29 pm by EL34 |
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Filter Cap Question
Started by dpm309 |
20 Replies
10310 Views |
September 19, 2011, 03:24:28 pm by dpm309 |
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My Little Wing
Started by Boots Deville |
7 Replies
4361 Views |
September 19, 2011, 10:04:48 am by zendragon63 |
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23 Replies
12113 Views |
September 19, 2011, 12:16:49 am by SleepLess |
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6 Replies
6771 Views |
September 18, 2011, 04:17:20 pm by kagliostro |
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Carolina HummingBird OD
Started by tubenit |
11 Replies
5614 Views |
September 18, 2011, 02:19:18 pm by TIMBO |
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6J6A Long Tail Phase Inverter.
Started by DummyLoad |
3 Replies
4341 Views |
September 17, 2011, 09:39:45 pm by DummyLoad |
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Eliminating a gain stage
Started by dude |
6 Replies
4109 Views |
September 17, 2011, 04:33:35 pm by dude |
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The Twin Biasing Problem
Started by plexi50 |
7 Replies
4130 Views |
September 17, 2011, 03:51:36 pm by stratele52 |
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Weird Phase inverter...
Started by DummyLoad |
4 Replies
3703 Views |
September 17, 2011, 09:16:29 am by rzenc |
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PLEXI GAIN 20 VVR and VOLUME PROBLEM
Started by TIMBO |
7 Replies
3848 Views |
September 17, 2011, 06:32:02 am by tubenit |
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Modified Twin Reverb Problem
Started by dpm309 |
19 Replies
7371 Views |
September 16, 2011, 08:00:58 pm by Willabe |
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3 Replies
3209 Views |
September 16, 2011, 10:50:59 am by phsyconoodler |
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4 Replies
3208 Views |
September 16, 2011, 09:08:08 am by Frankenamp |
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7 Replies
6166 Views |
September 16, 2011, 08:03:14 am by Fresh_Start |
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super champ inside photo
Started by phsyconoodler |
6 Replies
4645 Views |
September 16, 2011, 05:28:04 am by LooseChange |
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Line 6 Spider Valve Tube Preamp
Started by JustMike |
2 Replies
3611 Views |
September 15, 2011, 01:59:48 pm by JustMike |
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