Welcome To the Hoffman Amplifiers ForumApril 25, 2026, 10:29:08 pm | ||
| Subject / Started by | Replies / Views | Last post ![]() |
||
|---|---|---|---|---|
| 0 Members and 34 Guests are viewing this board. | ||||
|
|
14 Replies
6721 Views |
by madnis |
|
|
|
Hohner Kingstar 20 suggestions
Started by Kesi from Hungary |
3 Replies
3717 Views |
by Kesi from Hungary |
|
|
How to identify part values....
Started by mmrxcsr01 |
10 Replies
4720 Views |
by mmrxcsr01 |
|
|
Help me understand this screen supply
Started by Duckmang |
17 Replies
7436 Views |
by Duckmang |
|
|
5840 tube question
Started by Oddvar |
5 Replies
4869 Views |
by scstill |
|
|
New versus old Jensen P12Q speakers
Started by Voxbox |
0 Replies
3163 Views |
by Voxbox |
|
|
5 Replies
4818 Views |
by JPK |
|
|
|
18 Replies
7314 Views |
by Fraggy0117 |
|
|
|
Stop channel interaction on modded bassman
Started by Kev01 |
22 Replies
7398 Views |
by bmccowan |
|
|
a bias procedure question
Started by pbman1953 |
20 Replies
7512 Views |
by tubeswell |
|
|
Watkins Copicat tape speed question
Started by Jennings |
2 Replies
3041 Views |
by acheld |
|
|
Sunn Clone
Started by DummyLoad |
26 Replies
8177 Views |
by Platefire |
|
|
8 Replies
5769 Views |
by Voxbox |
|
|
|
Marshall Origin mod troubleshooting
Started by Ledvedder |
6 Replies
5242 Views |
by Ledvedder |
|
|
High VAC on B+
Started by CrocMule |
16 Replies
5869 Views |
by HotBluePlates |
|
|
Mod filters
Started by dude |
4 Replies
4263 Views |
by HotBluePlates |
|
|
4 Replies
3242 Views |
by swingarm |
|
|
|
Harvard Amp Mod
Started by TurboGuitarMelton |
14 Replies
6373 Views |
by CascoSieg |
|
|
6 Replies
4690 Views |
by punkykatt |
|
|
|
8 Replies
5047 Views |
by tubeswell |
|
|
|
12 Replies
5517 Views |
by fazeka |
|
|
|
5f6a bias tap glow
Started by tommyzcat |
10 Replies
3887 Views |
by tommyzcat |
|
|
11 Replies
4557 Views |
by sluckey |
|
|
|
mosfet trem blowing PS resistors...
Started by CascoSieg |
13 Replies
4886 Views |
by CascoSieg |
|
|
EL34 suppressor grid
Started by SoundCity85 |
5 Replies
3666 Views |
by SoundCity85 |
|
|
40 V AC in the green terminals of 6,3V
Started by rafaelctt |
32 Replies
8498 Views |
by sluckey |
|
|
290AX wiring with a Champ 600 reissue
Started by JPK |
4 Replies
3430 Views |
by JPK |
|
|
8 Replies
3932 Views |
by kagliostro |
|
|
|
Revisit- Fender Super Twin- New Project
Started by pbman1953 |
14 Replies
4860 Views |
by pbman1953 |
|
|
3 Replies
3074 Views |
by BrainDeadAmps |
|
|
|
23 Replies
6076 Views |
by Platefire |
|
|
|
5 Replies
3323 Views |
by fdesalvo |
|
|
|
14 Replies
5479 Views |
by kagliostro |
|
|
|
AB764 Vibrochamp build questions
Started by J3ona1 |
2 Replies
2913 Views |
by J3ona1 |
|
|
Another PR build post with questions…
Started by Jalmeida |
1 Replies
2261 Views |
by sluckey |
|
|
Need help with something wierd
Started by RoninAudio |
6 Replies
3442 Views |
by RoninAudio |
|
|
6 Replies
4181 Views |
by JPK |
|
|
|
New 5E3 build bias check - am I ok?
Started by JPK |
10 Replies
4595 Views |
by Voxbox |
|
|
Changing this schematic presence control
Started by dude |
8 Replies
4664 Views |
by dude |
|
|
Output transformer ringing
Started by Esquirefreak |
0 Replies
2712 Views |
by Esquirefreak |
|
|
Amp Projects
Started by Lectroid |
19 Replies
6892 Views |
by PRR |
|
|
11 Replies
4518 Views |
by kagliostro |
|
|
|
Cathode biased Blues Junior new project
Started by acheld |
13 Replies
6074 Views |
by pdf64 |
|
|
19 Replies
7462 Views |
by bmccowan |
|
|
|
Passive Effects Loop Implementation
Started by McAbe |
9 Replies
6118 Views |
by pdf64 |
|
|
3 Replies
2917 Views |
by kagliostro |
|
|
|
Power transformer wiring question
Started by Erik Aa |
23 Replies
7458 Views |
by Erik Aa |
|
|
59 Replies
75334 Views |
by shooter |
|
|
|
The danger of vacuum tubes
Started by isaac_teller |
5 Replies
3682 Views |
by mresistor |
|
|
Switch between 2 different output valves
Started by Paulycoo |
16 Replies
5171 Views |
by kagliostro |
Normal Topic
Hot Topic (More than 25 replies)
Very Hot Topic (More than 50 replies)
Locked Topic
Sticky Topic
Poll
| Choose a link from the Hoffman Amplifiers parts catalog |
||
|
Mobile Device Catalog Link |
Yard Sale Discontinued |
Misc. Hardware |
| What's New |
Board Building Parts |
Amp trim Handles |
|
Lamps Diodes |
Hoffman Turret Boards |
Channel Switching |
| Resistors |
Fender Eyelet Boards |
Screws/Nuts Washers |
|
Jacks/Plugs Connectors |
Misc Eyelet Boards |
Tools |
| Capacitors |
Custom Boards |
Tubes Valves |
|
Pots Knobs |
Fuses/Cords |
Chassis |
|
Tube Sockets |
Switches |
Wire Cable |