Welcome To the Hoffman Amplifiers Forum
October 22, 2025, 08:50:55 pm
Welcome To the Hoffman Amplifiers ForumOctober 22, 2025, 08:50:55 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 61 Guests are viewing this board. | ||||
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32 Replies
8959 Views |
March 20, 2021, 10:14:27 amby PharmRock |
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6 Replies
4639 Views |
March 20, 2021, 09:03:58 am by acheld |
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Inpedance of output transformer
Started by jamesedmunda |
4 Replies
2745 Views |
March 20, 2021, 03:53:10 am by Latole |
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Mojotone PR buzz
Started by dbaum |
8 Replies
3063 Views |
March 19, 2021, 07:50:16 pm by texwest |
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Doug's custom boards
Started by p2pAmps |
11 Replies
4501 Views |
March 19, 2021, 10:41:33 am by 66Strat |
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Diodes in parallel with GZ34?
Started by Opry Audio |
10 Replies
4867 Views |
March 19, 2021, 08:05:37 am by pdf64 |
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Transformer Supplier
Started by ALBATROS1234 |
1 Replies
1808 Views |
March 18, 2021, 10:38:05 am by Latole |
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Advice on KLD 5E3?
Started by timmyjoe |
5 Replies
3154 Views |
March 18, 2021, 08:42:25 am by dwinstonwood |
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11 Replies
3781 Views |
March 17, 2021, 06:53:25 pm by shooter |
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VHT Standard 18w TMB
Started by mresistor |
2 Replies
2764 Views |
March 17, 2021, 02:31:27 pm by mresistor |
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2 Replies
2029 Views |
March 17, 2021, 01:34:22 pm by pdf64 |
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Dumble 50W 3rd gen
Started by Nikk |
6 Replies
2997 Views |
March 17, 2021, 01:33:43 pm by Nikk |
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TO20 Transformer
Started by AllEars |
18 Replies
7781 Views |
March 17, 2021, 10:15:44 am by thetragichero |
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New amp schematic for feedback
Started by Ed_Chambley |
36 Replies
14924 Views |
March 17, 2021, 08:21:04 am by shooter |
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52 Replies
12816 Views |
March 17, 2021, 07:25:46 am by trobbins |
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JTM45 - Broken power tubes?
Started by jwarlock |
15 Replies
4913 Views |
March 16, 2021, 06:05:34 pm by jwarlock |
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Supro 1696TN scratch build question
Started by luthierwnc |
2 Replies
2220 Views |
March 16, 2021, 03:10:45 pm by luthierwnc |
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Bassman 6G6A 510v on plates
Started by shaun |
10 Replies
3288 Views |
March 16, 2021, 03:06:48 pm by shaun |
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Bleeding Resistors
Started by dude |
9 Replies
3418 Views |
March 16, 2021, 12:46:02 pm by PRR |
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2 Replies
1727 Views |
March 15, 2021, 06:07:18 pm by Coinroller |
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Deluxe OPT in Princeton
Started by casey73 |
9 Replies
3250 Views |
March 15, 2021, 12:05:40 pm by casey73 |
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9 Replies
3264 Views |
March 15, 2021, 11:33:02 am by Mike_J |
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Securing AC and chassis ground points?
Started by Mike_J |
23 Replies
6219 Views |
March 14, 2021, 08:33:35 pm by Soulfetish |
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What would cause bias resistors to blow?
Started by Mason |
14 Replies
6063 Views |
March 14, 2021, 07:25:59 pm by HotBluePlates |
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6 Replies
3120 Views |
March 14, 2021, 04:27:41 am by luthierwnc |
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Univox U235PB B+ Secondary Fusing
Started by astronomicum |
11 Replies
4254 Views |
March 13, 2021, 07:13:30 pm by trobbins |
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6g3 Master Volume conundrum
Started by luthierwnc |
11 Replies
4910 Views |
March 13, 2021, 06:05:41 pm by luthierwnc |
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1965 Gretsch/Valco 6165 noise
Started by wsscott |
31 Replies
6279 Views |
March 13, 2021, 11:22:57 am by wsscott |
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My hoffman Twin Reverb - new problem
Started by proaudioguy |
5 Replies
3136 Views |
March 13, 2021, 06:03:40 am by sluckey |
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Silvertone 1484 Reverb Issue
Started by jim dresser |
3 Replies
2433 Views |
March 13, 2021, 12:33:38 am by thetragichero |
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6 Replies
2516 Views |
March 12, 2021, 04:58:29 pm by Opry Audio |
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23 Replies
7048 Views |
March 12, 2021, 04:16:23 pm by Mike_J |
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Problem with Supro Thunderbolt Build
Started by johno9 |
10 Replies
3931 Views |
March 11, 2021, 06:02:20 pm by shooter |
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33 Replies
6571 Views |
March 11, 2021, 05:59:57 pm by shooter |
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4 Replies
2034 Views |
March 11, 2021, 04:06:57 pm by Mike_J |
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Stuck, (I can't find the issue)
Started by dude |
10 Replies
5121 Views |
March 11, 2021, 03:54:46 pm by dude |
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Fender Bandmaster TFL5005?
Started by JustMike |
16 Replies
6129 Views |
March 11, 2021, 10:20:17 am by JustMike |
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13 Replies
6655 Views |
March 11, 2021, 05:58:05 am by pdf64 |
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Hoffman 5f6a modified to fit my chassis.
Started by Mike_J |
1 Replies
1890 Views |
March 10, 2021, 11:46:16 am by Mike_J |
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How to troubleshoot this?
Started by JustMike |
10 Replies
3864 Views |
March 10, 2021, 07:50:17 am by sluckey |
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28 Replies
6721 Views |
March 09, 2021, 06:25:11 pm by Mike_J |
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What's Up With My Plate Voltage?
Started by dankinzelman |
31 Replies
6298 Views |
March 09, 2021, 05:03:49 pm by PRR |
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Princeton Reverb hum.. help?
Started by Opry Audio |
12 Replies
3909 Views |
March 09, 2021, 01:20:55 pm by Opry Audio |
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Help understanding schematic
Started by munkeyboy |
14 Replies
4585 Views |
March 09, 2021, 12:54:51 pm by PRR |
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Rating ecaps.
Started by Mike_J |
7 Replies
3259 Views |
March 09, 2021, 11:47:20 am by PRR |
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5 Replies
2761 Views |
March 09, 2021, 11:05:30 am by wittyjeff |
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24 Replies
11382 Views |
March 09, 2021, 08:43:39 am by dragonworks |
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Preamp noise - repairable?
Started by jordan86 |
11 Replies
3616 Views |
March 09, 2021, 08:23:41 am by jordan86 |
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Marshall 1987s hum.
Started by Rich_C |
12 Replies
3847 Views |
March 09, 2021, 03:03:09 am by Tone Junkie |
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Polarity wiring filaments
Started by dude |
8 Replies
4491 Views |
March 08, 2021, 09:20:33 pm by Sonny ReVerb |
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