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