Welcome To the Hoffman Amplifiers ForumJanuary 23, 2026, 09:55:34 pm | ||
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Do I have a problem?
Started by dbishopbliss |
5 Replies
2855 Views |
by glass54 |
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15 Replies
4995 Views |
by kagliostro |
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12 Replies
4515 Views |
by dwinstonwood |
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Filter cans and Hammond AO-43 chassis
Started by dude |
4 Replies
2523 Views |
by dude |
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Cathode biasing technique
Started by Voxbox |
21 Replies
5514 Views |
by HotBluePlates |
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5E3 Dumble Mods
Started by dpm309 |
3 Replies
3353 Views |
by Madjackhatter |
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Something New
Started by TIMBO |
3 Replies
2333 Views |
by kagliostro |
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12 Replies
4965 Views |
by fkitch |
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Princeton Reverb build trem problem
Started by punkykatt |
9 Replies
2918 Views |
by punkykatt |
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22 Replies
19262 Views |
by frankk |
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10 Replies
3807 Views |
by sluckey |
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AC inlet for petalboard
Started by luthierwnc |
5 Replies
3254 Views |
by luthierwnc |
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Pots for old amps
Started by schturlan |
14 Replies
4919 Views |
by Latole |
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Screen resistors
Started by fritz203 |
3 Replies
2438 Views |
by fritz203 |
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Cathodyne PPIVMV
Started by willwaush |
19 Replies
6502 Views |
by jojokeo |
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Kalamazoo 2 tremolo intensity
Started by isaac_teller |
7 Replies
3643 Views |
by sluckey |
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Mini amp build, 2 problems
Started by AmberB |
22 Replies
6180 Views |
by PRR |
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Line out for an AB763 amp?
Started by 72Blazer |
5 Replies
3495 Views |
by SILVERGUN |
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14 Replies
5046 Views |
by Dyerseve726 |
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Fender Faceplates
Started by jy67 |
2 Replies
2499 Views |
by jy67 |
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Suggestions for two extra triodes?
Started by dwinstonwood |
32 Replies
7875 Views |
by dwinstonwood |
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Applications for UL84 tubes
Started by Rontone |
5 Replies
3330 Views |
by kagliostro |
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Question about Merlin's grounding
Started by dwinstonwood |
33 Replies
8515 Views |
by dwinstonwood |
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Preamp tube proximity. marshall mod
Started by joesatch |
7 Replies
3648 Views |
by dwinstonwood |
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Do New Amps "Burn In?"
Started by DougGuy |
19 Replies
5861 Views |
by jojokeo |
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Power XFMR/Output XFMR relationship
Started by Dealbreaker |
15 Replies
4734 Views |
by Dealbreaker |
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Replacing electrolytic cap cans
Started by Erik Aa |
6 Replies
2892 Views |
by Erik Aa |
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Non polarized cap in bias circuit
Started by Stuff4bikes |
1 Replies
2162 Views |
by sluckey |
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hammond 125J question
Started by jackplug1 |
6 Replies
3720 Views |
by jackplug1 |
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Slow tremolo mod
Started by valvetones |
8 Replies
4386 Views |
by sluckey |
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5 Replies
3272 Views |
by texwest |
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Wem Westminster MK9 schematic question
Started by Wonder2121 |
5 Replies
3779 Views |
by pdf64 |
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3 Replies
2754 Views |
by mresistor |
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1 Replies
2304 Views |
by sluckey |
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1966 Fender Bassman 100% Original
Started by jamaio |
28 Replies
8310 Views |
by jamaio |
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Convert schematic to layout
Started by ok_state_blues |
6 Replies
3721 Views |
by ok_state_blues |
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News Update Valve Supplies
Started by Latole |
1 Replies
2364 Views |
by Leevi |
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7 Replies
3172 Views |
by bmccowan |
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7 Replies
5066 Views |
by AmberB |
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63 Replies
11403 Views |
by RadioComm |
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EF86 Vibroverb
Started by valvetones |
9 Replies
3353 Views |
by valvetones |
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1 ohm cathode resistor
Started by AmberB |
42 Replies
11652 Views |
by pdf64 |
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AC15 Volume Issues
Started by ebulakowski |
13 Replies
4446 Views |
by valvetones |
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Out of spec transformers and testing
Started by liddokun |
18 Replies
5733 Views |
by liddokun |
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24 Replies
6322 Views |
by 72Blazer |
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LM master volume question
Started by Esquirefreak |
5 Replies
3146 Views |
by Esquirefreak |
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Princeton 5F2-A Clone TONE Pot values
Started by Bigjoedo |
5 Replies
4093 Views |
by Bigjoedo |
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UberGain PowerSupply
Started by MiniVanMan |
3 Replies
2967 Views |
by PRR |
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Stout Reverb Build / No Audio - Fixed
Started by jamaio |
8 Replies
5251 Views |
by tubenit |
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Measuring the primary of an OT
Started by pbman1953 |
11 Replies
4757 Views |
by pbman1953 |
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