Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 08:08:55 am
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 08:08:55 am | ||
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Handwound transformers???
Started by crashtm1 |
10 Replies
8244 Views |
May 17, 2010, 07:01:39 pmby crashtm1 |
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Need help with noisy Ampeg J-20
Started by mfc_pj |
10 Replies
9276 Views |
May 17, 2010, 06:50:01 pm by Rich |
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Framus Cobra Head
Started by dpm309 |
5 Replies
7873 Views |
May 17, 2010, 06:47:07 pm by dpm309 |
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Wiring questions.
Started by tinker |
5 Replies
6475 Views |
May 17, 2010, 02:57:01 pm by jojokeo |
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Hum in 1978 Vibrolux Reverb
Started by Gene |
22 Replies
14969 Views |
May 17, 2010, 11:19:18 am by Gene |
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MASTER VOLUME FOR EACH PAIR
Started by rzenc |
16 Replies
11920 Views |
May 16, 2010, 09:22:53 am by rzenc |
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12 Replies
7723 Views |
May 16, 2010, 09:12:42 am by tubenit |
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One tube reverb info
Started by TIMBO |
5 Replies
5940 Views |
May 16, 2010, 06:41:32 am by tubenit |
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10 Replies
12541 Views |
May 15, 2010, 11:58:20 am by HotBluePlates |
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Brain Cell Loss / -ma
Started by plexi50 |
4 Replies
5336 Views |
May 14, 2010, 09:34:10 pm by plexi50 |
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Marshall pilot lamps
Started by Tiny_Daddy |
9 Replies
7028 Views |
May 14, 2010, 01:23:40 pm by labb |
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converting 4-EL84 to KT66.
Started by dwp |
5 Replies
8254 Views |
May 14, 2010, 08:30:59 am by dwp |
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3 Replies
6569 Views |
May 14, 2010, 04:59:09 am by FYL |
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Headphones from speaker jack?
Started by dynaman1 |
5 Replies
6368 Views |
May 13, 2010, 03:43:46 pm by dynaman1 |
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Sovtek Mig 60
Started by plexi50 |
14 Replies
12142 Views |
May 13, 2010, 02:04:43 am by The_Gaz |
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7 Replies
8714 Views |
May 12, 2010, 10:31:25 pm by jjasilli |
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Fender Concert Blackface plate voltage
Started by chocopower |
3 Replies
6454 Views |
May 12, 2010, 04:10:57 pm by JayB |
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'69 Marshall Head 6550 to EL34
Started by NannerPuddin |
1 Replies
4796 Views |
May 12, 2010, 04:08:32 pm by jojokeo |
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voltage tolerance
Started by bnew63 |
17 Replies
9960 Views |
May 11, 2010, 06:02:11 pm by RicharD |
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3 Replies
5587 Views |
May 11, 2010, 03:22:48 pm by archaos |
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22 Replies
17395 Views |
May 11, 2010, 12:28:25 pm by simonallaway |
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6 Replies
7978 Views |
May 10, 2010, 11:07:15 pm by Ritchie200 |
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Totem Pole
Started by duke of earl |
16 Replies
11307 Views |
May 10, 2010, 09:14:05 pm by duke of earl |
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6 Replies
11732 Views |
May 10, 2010, 11:49:50 am by Jack1962 |
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15 Replies
10926 Views |
May 09, 2010, 11:55:57 pm by TubeGeek |
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6550 bias in ultraliniear connection
Started by Bub |
11 Replies
13056 Views |
May 09, 2010, 08:51:58 pm by Bub |
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to drop voltage or not?
Started by bnew63 |
8 Replies
7048 Views |
May 09, 2010, 03:52:34 pm by bnew63 |
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19 Replies
13775 Views |
May 09, 2010, 12:14:36 pm by imaradiostar |
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6 Replies
8144 Views |
May 09, 2010, 12:01:32 pm by bigdaddy |
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Reverb driver
Started by Leevi |
18 Replies
12449 Views |
May 09, 2010, 11:58:58 am by imaradiostar |
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The "Opus" Amp??
Started by TIMBO |
18 Replies
10614 Views |
May 08, 2010, 05:47:31 pm by TIMBO |
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Looking for a good tube mic preamp schematic
Started by kagliostro « 1 2 » |
76 Replies
53694 Views |
May 08, 2010, 04:35:18 pm by kagliostro |
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18 Replies
19003 Views |
May 08, 2010, 01:35:55 pm by Fresh_Start |
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Grounding- AB763 AB165 AA864 etc.
Started by J Rindt |
5 Replies
10034 Views |
May 08, 2010, 01:23:50 pm by Fresh_Start |
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12ax7 Phase inverter voltages
Started by Bub |
3 Replies
13082 Views |
May 08, 2010, 10:41:07 am by Bub |
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Where to get a roach?
Started by tubesornothing |
3 Replies
5502 Views |
May 08, 2010, 01:05:48 am by Shrapnel |
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PP OPT in a SE Amp
Started by Trevor_Long |
7 Replies
7163 Views |
May 07, 2010, 08:12:16 pm by bigdaddy |
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6G6-A Bassman
Started by J Rindt |
7 Replies
8027 Views |
May 06, 2010, 03:16:49 pm by Shrapnel |
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Pro Reverb cap job
Started by gbeard |
2 Replies
5227 Views |
May 06, 2010, 07:50:29 am by alerich |
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22 Replies
13589 Views |
May 05, 2010, 10:32:44 pm by SoundmasterG |
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high low jack question ?
Started by john_t |
2 Replies
5023 Views |
May 05, 2010, 06:57:25 pm by john_t |
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Destructive mistakes
Started by atmars |
31 Replies
15728 Views |
May 05, 2010, 03:09:27 pm by jojokeo |
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high end parts
Started by bnew63 |
26 Replies
12670 Views |
May 05, 2010, 07:24:52 am by bigdaddy |
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Dating a DSL JCM 2000
Started by Backwoods Joe |
12 Replies
8545 Views |
May 04, 2010, 06:06:47 pm by Backwoods Joe |
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2 Replies
5668 Views |
May 04, 2010, 04:56:10 pm by phsyconoodler |
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disturbance when turning the pot
Started by Leevi |
15 Replies
10502 Views |
May 04, 2010, 02:44:31 pm by tubeswell |
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Cap in Stout amp
Started by Mats |
4 Replies
5293 Views |
May 04, 2010, 01:14:06 pm by Mats |
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don't know opt's output
Started by bnew63 |
46 Replies
19482 Views |
May 04, 2010, 01:19:15 am by Shrapnel |
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single speaker out of phase??!??
Started by tubesornothing |
13 Replies
11485 Views |
May 03, 2010, 10:14:04 pm by P Batty |
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Critique this schematic...please.
Started by bigsbybender |
8 Replies
7284 Views |
May 03, 2010, 01:47:15 pm by terminalgs |
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