Welcome To the Hoffman Amplifiers Forum
October 23, 2025, 11:29:21 pm
Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 11:29:21 pm | ||
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| scstill and 57 Guests are viewing this board. | ||||
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Proofread schematic?
Started by John |
5 Replies
2925 Views |
September 26, 2011, 09:37:43 amby John |
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UL Screen Tap Question...
Started by Ritchie200 |
10 Replies
5717 Views |
September 26, 2011, 04:08:37 am by Merlin |
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5 Replies
3543 Views |
September 25, 2011, 09:11:32 pm by firemedic |
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MIEC capacitors, Tiawan
Started by Tiny_Daddy |
3 Replies
6234 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
5961 Views |
September 25, 2011, 03:42:57 pm by kagliostro |
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3 Replies
4425 Views |
September 25, 2011, 03:01:02 pm by escopunk |
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Cap substitution
Started by Mars-Hall |
4 Replies
2634 Views |
September 25, 2011, 12:48:37 pm by bigsbybender |
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Tremolo question
Started by Leevi |
2 Replies
2216 Views |
September 25, 2011, 08:31:06 am by Tiny_Daddy |
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SFSR cathode resistors
Started by Mars-Hall |
1 Replies
2156 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
3652 Views |
September 24, 2011, 08:44:21 pm by blown240 |
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Fender The Twin Reverb Problem
Started by plexi50 |
13 Replies
8381 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
3443 Views |
September 23, 2011, 09:13:18 pm by DummyLoad |
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transformer impedence
Started by rdrgtr |
11 Replies
4299 Views |
September 23, 2011, 04:10:55 pm by bobmegantz |
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power tube coupling caps
Started by ernie_jr |
1 Replies
2450 Views |
September 23, 2011, 03:22:27 pm by FYL |
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23 Replies
11571 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
4170 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
9921 Views |
September 22, 2011, 11:55:19 am by panhead |
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Help Me ID This Transformer
Started by blown240 |
20 Replies
5671 Views |
September 21, 2011, 01:36:55 pm by kagliostro |
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Musicman HD130 on the bench
Started by LooseChange |
16 Replies
9387 Views |
September 21, 2011, 09:51:15 am by km888 |
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JTM 45 and Caps
Started by Ed_Chambley |
7 Replies
4077 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
4451 Views |
September 20, 2011, 10:53:42 pm by HotBluePlates |
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3 Replies
2495 Views |
September 20, 2011, 06:36:42 pm by tubenit |
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wiring a 2203 PT
Started by phsyconoodler |
12 Replies
6827 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
3295 Views |
September 20, 2011, 12:26:56 pm by sluckey |
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MOVED: Amp Show
Started by EL34 |
0 Replies
1943 Views |
September 19, 2011, 05:51:19 pm by EL34 |
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Bias Pots
Started by Ed_Chambley |
7 Replies
4336 Views |
September 19, 2011, 05:42:29 pm by EL34 |
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Filter Cap Question
Started by dpm309 |
20 Replies
8912 Views |
September 19, 2011, 03:24:28 pm by dpm309 |
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My Little Wing
Started by Boots Deville |
7 Replies
3754 Views |
September 19, 2011, 10:04:48 am by zendragon63 |
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23 Replies
10994 Views |
September 19, 2011, 12:16:49 am by SleepLess |
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6 Replies
6106 Views |
September 18, 2011, 04:17:20 pm by kagliostro |
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Carolina HummingBird OD
Started by tubenit |
11 Replies
4842 Views |
September 18, 2011, 02:19:18 pm by TIMBO |
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6J6A Long Tail Phase Inverter.
Started by DummyLoad |
3 Replies
3781 Views |
September 17, 2011, 09:39:45 pm by DummyLoad |
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Eliminating a gain stage
Started by dude |
6 Replies
3525 Views |
September 17, 2011, 04:33:35 pm by dude |
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The Twin Biasing Problem
Started by plexi50 |
7 Replies
3407 Views |
September 17, 2011, 03:51:36 pm by stratele52 |
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Weird Phase inverter...
Started by DummyLoad |
4 Replies
3077 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
3132 Views |
September 17, 2011, 06:32:02 am by tubenit |
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Modified Twin Reverb Problem
Started by dpm309 |
19 Replies
6348 Views |
September 16, 2011, 08:00:58 pm by Willabe |
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3 Replies
2552 Views |
September 16, 2011, 10:50:59 am by phsyconoodler |
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4 Replies
2689 Views |
September 16, 2011, 09:08:08 am by Frankenamp |
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7 Replies
5445 Views |
September 16, 2011, 08:03:14 am by Fresh_Start |
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super champ inside photo
Started by phsyconoodler |
6 Replies
4018 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
2998 Views |
September 15, 2011, 01:59:48 pm by JustMike |
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3 Replies
3234 Views |
September 15, 2011, 09:13:02 am by EL34 |
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Single Ended Layout
Started by spacelabstudio |
19 Replies
7151 Views |
September 15, 2011, 06:14:39 am by spacelabstudio |
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RCA SE amp - suppressor grid quandary.
Started by DummyLoad |
7 Replies
3726 Views |
September 15, 2011, 01:40:13 am by DummyLoad |
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wiring paralleled triodes
Started by Matty_V |
4 Replies
2690 Views |
September 15, 2011, 01:28:38 am by TIMBO |
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VVR, power-scaling question
Started by jeffhorrigan |
20 Replies
7748 Views |
September 15, 2011, 12:03:46 am by HotBluePlates |
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17 Replies
11977 Views |
September 14, 2011, 06:35:07 am by John |
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Marshall JMP vrs. JCM 800?
Started by rdrgtr |
11 Replies
7341 Views |
September 13, 2011, 07:39:17 pm by Matty_V |
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MOVED: Capacitor meter/checker
Started by EL34 |
0 Replies
2067 Views |
September 13, 2011, 06:07:27 pm by EL34 |
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