Welcome To the Hoffman Amplifiers ForumSeptember 07, 2025, 05:30:15 am | ||
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Where to place the humdinger pot?
Started by Mike_J |
23 Replies
9929 Views |
![]() by Mike_J |
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3 Replies
1945 Views |
![]() by TIMBO |
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Hoffman Relay PS Board Question
Started by 3rdof3 |
1 Replies
1746 Views |
![]() by sluckey |
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13 Replies
3462 Views |
![]() by shooter |
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Tweed mod for Vibro Champ
Started by mresistor |
28 Replies
8912 Views |
![]() by mresistor |
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Need some feedback on my 5E3 design
Started by sean_thornton |
8 Replies
3032 Views |
![]() by HotBluePlates |
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8 Replies
3136 Views |
![]() by PRR |
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5F6A Bassman Bias / Current / Watts
Started by plexi50 |
11 Replies
4687 Views |
![]() by plexi50 |
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lead dress around PI
Started by arjepsen |
3 Replies
2334 Views |
![]() by HotBluePlates |
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17 Replies
6455 Views |
![]() by PRR |
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Filter cap before the plate supply
Started by g-man |
14 Replies
4894 Views |
![]() by PRR |
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28 Replies
7044 Views |
![]() by punkykatt |
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B+ and screen wire layout?
Started by Mike_J |
4 Replies
2427 Views |
![]() by Mike_J |
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Determining Output Transformer
Started by dujuarez |
5 Replies
2121 Views |
![]() by dujuarez |
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8 Replies
2613 Views |
![]() by PRR |
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Tweed Deluxe Build
Started by Fresh_Start |
15 Replies
4895 Views |
![]() by bnwitt |
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Tweed Bassman squeal
Started by osing |
31 Replies
7856 Views |
![]() by osing |
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Bassman 10 75 Model PT Question
Started by plexi50 |
32 Replies
5802 Views |
![]() by plexi50 |
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MOVED: Amp Caddy
Started by Willabe |
0 Replies
1719 Views |
![]() by Willabe |
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6BM8 reverb amp
Started by Paul1453 |
12 Replies
4282 Views |
![]() by Paul1453 |
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couple of transformer questions (Allen)
Started by Shack |
7 Replies
3308 Views |
![]() by Shack |
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Biasing a Hoffman Princeton Reverb
Started by Jerome |
3 Replies
2788 Views |
![]() by sluckey |
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AO-43 to Blues Jr. conversion
Started by Jerome |
12 Replies
3799 Views |
![]() by sluckey |
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AC30, bringing voltages down
Started by bruno |
2 Replies
2013 Views |
![]() by bruno |
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5 Replies
2530 Views |
![]() by dujuarez |
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302 Replies
64572 Views |
![]() by SoundmasterG |
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6 Replies
3729 Views |
![]() by eleventeen |
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Voltage*current = power --> Tone?
Started by jbefumo |
18 Replies
5504 Views |
![]() by jbefumo |
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267 Replies
64150 Views |
![]() by Ritchie200 |
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Swart Space ToNe
Started by mresistor |
20 Replies
10322 Views |
![]() by Ed_Chambley |
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NFB Control Questions????
Started by Platefire |
7 Replies
3521 Views |
![]() by Platefire |
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Fender 100 Watt PA Head w Reverb
Started by TerryD |
47 Replies
10565 Views |
![]() by TerryD |
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Filter Capacitor Questions
Started by dujuarez |
5 Replies
3072 Views |
![]() by dujuarez |
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Fender super reverb
Started by Big chief |
3 Replies
1924 Views |
![]() by Colas LeGrippa |
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Varistor in LFO driver
Started by Willabe |
5 Replies
2365 Views |
![]() by PRR |
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Pre-wiring a PR board
Started by p2pAmps |
13 Replies
3089 Views |
![]() by Paul1453 |
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Shielded cable ground?
Started by punkykatt |
8 Replies
3784 Views |
![]() by punkykatt |
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Bassman AA864 Project
Started by p2pAmps |
12 Replies
3692 Views |
![]() by Willabe |
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Cathode boost question
Started by Colas LeGrippa |
8 Replies
2865 Views |
![]() by kagliostro |
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Biasing the '63 Vibroverb RI
Started by alange5 |
7 Replies
6676 Views |
![]() by redtabby |
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use of MOVs
Started by jim |
4 Replies
2630 Views |
![]() by jim |
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Crossline negative feedback?
Started by skeezbo |
8 Replies
2637 Views |
![]() by skeezbo |
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Sluckey's Warbler mods
Started by Willabe |
9 Replies
3169 Views |
![]() by Willabe |
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Doppler Stereo combo tube amp
Started by Willabe |
8 Replies
3504 Views |
![]() by Willabe |
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Another Tone Stack Question
Started by Gone_Fishing |
1 Replies
1568 Views |
![]() by HotBluePlates |
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2 Replies
1754 Views |
![]() by Mike_J |
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5 Replies
2242 Views |
![]() by VMS |
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2 Replies
1892 Views |
![]() by markmalin |
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Adding Individual Bias Controls?
Started by jbefumo |
19 Replies
7116 Views |
![]() by jbefumo |
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Reel to Reel Conversion
Started by Brendan |
28 Replies
5720 Views |
![]() by John |
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