Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 11:23:12 am | ||
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Horrible hum cased by?
Started by timmyjoe |
21 Replies
5589 Views |
by acheld |
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Component selection - PRRI rebuild
Started by mellotron |
4 Replies
2190 Views |
by PRR |
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Master volume on Matchless Clubman
Started by frankenxtein |
10 Replies
2954 Views |
by frankenxtein |
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Hand Wired vs Printed Circuit Board.
Started by Grees01 |
27 Replies
6596 Views |
by kagliostro |
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Bugera V22 h
Started by HighFlyingV |
7 Replies
4277 Views |
by HighFlyingV |
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p2pAmps Rusty-Dawg #001 Demo
Started by p2pAmps |
6 Replies
3001 Views |
by Grees01 |
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Mystery Transformers
Started by Blueboozer |
6 Replies
2596 Views |
by Blueboozer |
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5 Replies
3158 Views |
by Latole |
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Output transformer question
Started by Stuff4bikes |
1 Replies
2006 Views |
by glass54 |
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Champ 5F1 with 7591
Started by mikhett |
9 Replies
3037 Views |
by mikhett |
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5 Replies
2463 Views |
by turbofeedus |
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8 Replies
3811 Views |
by joesatch |
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help spec'n PT?
Started by Jonas |
18 Replies
4665 Views |
by shooter |
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Reverb Problem
Started by Travis8 |
10 Replies
3439 Views |
by PRR |
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12.6 volt winding reduced to 6.3
Started by valvetones |
25 Replies
7450 Views |
by valvetones |
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Strange Voltage Readings On Prototype Board
Started by AHeck |
2 Replies
2279 Views |
by AHeck |
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Where to begin?
Started by Will.darden |
2 Replies
1908 Views |
by Grees01 |
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11 Replies
3973 Views |
by pdf64 |
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4 Replies
2580 Views |
by Bieworm |
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2204 V1 static when i touch the tube
Started by joesatch |
5 Replies
2565 Views |
by shooter |
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3 Replies
2406 Views |
by HotBluePlates |
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Resistor type question
Started by joesatch |
4 Replies
2083 Views |
by mresistor |
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Reverb pot in a drip edge PR
Started by mrhudson27 |
2 Replies
2010 Views |
by HotBluePlates |
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Some experienced eyes on this?
Started by jewishjay |
5 Replies
2264 Views |
by ghostinthescope |
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Princeton 5881 trem-o-nator questions
Started by acheld |
2 Replies
1976 Views |
by ac427v |
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6 Replies
3094 Views |
by PRR |
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HT rectification
Started by ok_state_blues |
6 Replies
2401 Views |
by ok_state_blues |
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3 Replies
2322 Views |
by JFlo |
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High gain two channel EL84 guitar amp
Started by Banjan73 |
35 Replies
8300 Views |
by Banjan73 |
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AC15/30 build Help
Started by AndyCharles |
28 Replies
6104 Views |
by HotBluePlates |
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AC15 Power Transformer
Started by Glenn |
12 Replies
4781 Views |
by mresistor |
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Transformer Repair
Started by Mason |
13 Replies
3888 Views |
by Latole |
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Cabinet Finishes
Started by p2pAmps |
7 Replies
3167 Views |
by Latole |
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TLA turret layout with Vus (unfinished)
Started by Jatchley |
10 Replies
3362 Views |
by Jatchley |
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2 Replies
2212 Views |
by EL34 |
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5 Replies
2604 Views |
by isaac_teller |
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i need help! 6L6 large mismatched
Started by johngovan |
17 Replies
4683 Views |
by tubeswell |
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Does This Circuit Exist?
Started by Nathan |
9 Replies
3965 Views |
by SILVERGUN |
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11 Replies
3650 Views |
by bmccowan |
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Tweed twin HP 6v6 OP tranny
Started by JGk |
7 Replies
2686 Views |
by valvetones |
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How to determine B+
Started by PlantEater |
11 Replies
4099 Views |
by PlantEater |
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8 Replies
3250 Views |
by HotBluePlates |
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output transformer inpedance
Started by jamesedmunda |
1 Replies
1902 Views |
by shooter |
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5 Replies
4083 Views |
by CO_Hoya |
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Tremolo mosfet cf
Started by BrainDeadAmps |
2 Replies
2049 Views |
by BrainDeadAmps |
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Standby switch resistor mod with results
Started by acheld |
9 Replies
5240 Views |
by PharmRock |
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3 Replies
2554 Views |
by fenderguy81 |
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Valco umbilical cord
Started by bmccowan |
5 Replies
2456 Views |
by bmccowan |
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64 Replies
23578 Views |
by mresistor |
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4 Replies
2275 Views |
by mbele |
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