Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 04:00:27 pm | ||
| Subject / Started by | Replies / Views | Last post ![]() |
||
|---|---|---|---|---|
| passaloutre, Glenn, dogburn and 103 Guests are viewing this board. | ||||
|
|
1974 Super Reverb - Channel Bleed
Started by 410_Fanatic |
17 Replies
6191 Views |
by 410_Fanatic |
|
|
OT using multiple taps at same time
Started by JPK |
18 Replies
6619 Views |
by JPK |
|
|
9 Replies
4421 Views |
by Joel |
|
|
|
4 Replies
2902 Views |
by kagliostro |
|
|
|
Bogus 12ax7 tubes.
Started by AlNewman |
20 Replies
7801 Views |
by HotBluePlates |
|
|
Alembic F-2B info
Started by PRR |
6 Replies
5152 Views |
by AlNewman |
|
|
5R4 rectifiers
Started by Brownie |
9 Replies
4710 Views |
by tubeswell |
|
|
JTM45 bias
Started by g-man |
2 Replies
3361 Views |
by g-man |
|
|
6 Replies
6116 Views |
by AlNewman |
|
|
|
Gibson Atlas amp head -- poor tone
Started by Coldhand75 |
9 Replies
4241 Views |
by bmccowan |
|
|
Davis 106 Amps
Started by plexi50 |
7 Replies
7259 Views |
by Lectroid |
|
|
MojoTone Studio One Watt
Started by GAStan |
10 Replies
5800 Views |
by GAStan |
|
|
18 Replies
5529 Views |
by shooter |
|
|
|
3 Replies
3821 Views |
by PRR |
|
|
|
Low vac on filaments
Started by dude |
3 Replies
2818 Views |
by dude |
|
|
How to measure bias in a Blues Jr?
Started by JustMike |
12 Replies
6946 Views |
by AlNewman |
|
|
EF86 GAIN FACTOR
Started by Jonas |
10 Replies
6047 Views |
by HotBluePlates |
|
|
AB763 brass plate?
Started by joesatch |
12 Replies
5734 Views |
by pdf64 |
|
|
0 Replies
3382 Views |
by astronomicum |
|
|
|
A mod for a '65 Vox AC-10
Started by miserlou |
12 Replies
5325 Views |
by Jalmeida |
|
|
Magnatone 280 on the Bench
Started by JustMike |
12 Replies
4744 Views |
by JustMike |
|
|
1964 Super Reverb NFB rotary switch
Started by Darkpr0 |
10 Replies
4188 Views |
by Darkpr0 |
|
|
Screen voltage higher than plate voltage?
Started by dude |
14 Replies
6909 Views |
by HotBluePlates |
|
|
0 Replies
2800 Views |
by astronomicum |
|
|
|
Tweaking voltage dividers
Started by TenderTendon |
1 Replies
2568 Views |
by sluckey |
|
|
1974 Twin Reverb Transformer
Started by TenderTendon |
4 Replies
2599 Views |
by TenderTendon |
|
|
Fender Twin 135w - 120hz hum
Started by Garrett335 |
6 Replies
3355 Views |
by sluckey |
|
|
Start-up Surge
Started by shaun |
24 Replies
7400 Views |
by acheld |
|
|
12 Replies
9342 Views |
by bmccowan |
|
|
|
18 Replies
7034 Views |
by dude |
|
|
|
Rogers/Majestic 6R531
Started by AlNewman |
24 Replies
6477 Views |
by AlNewman |
|
|
Noisey tubes
Started by pbman1953 |
7 Replies
3296 Views |
by scstill |
|
|
Pentode - triode switch 6V6
Started by tubenit |
1 Replies
2997 Views |
by sluckey |
|
|
A Basic Bias Question
Started by Lectroid |
18 Replies
5508 Views |
by Lectroid |
|
|
2 Replies
2636 Views |
by Jennings |
|
|
|
Heater Winding/Center Tap Question
Started by davidb |
3 Replies
3051 Views |
by HotBluePlates |
|
|
How to get 12v to my 12ax7?
Started by jordan86 |
6 Replies
4054 Views |
by PRR |
|
|
18 Replies
5439 Views |
by sluckey |
|
|
|
5 Replies
2987 Views |
by Lectroid |
|
|
|
Fuse help identification needed
Started by joesatch |
9 Replies
4677 Views |
by joesatch |
|
|
Sluckey "Trem-O-Nator Vactrol Question
Started by W5FH |
3 Replies
3000 Views |
by sluckey |
|
|
Simulating preamp questions
Started by fossilshark |
5 Replies
3785 Views |
by fossilshark |
|
|
5 Replies
3641 Views |
by RadioComm |
|
|
|
Minnesota auction
Started by bmccowan |
0 Replies
2300 Views |
by bmccowan |
|
|
26 Replies
10089 Views |
by PRR |
|
|
|
relay assistance
Started by joesatch |
24 Replies
6268 Views |
by acheld |
|
|
74 Replies
16639 Views |
by Blooze |
|
|
|
12at7 tube selection
Started by pbman1953 |
7 Replies
3102 Views |
by HotBluePlates |
|
|
Schematic Finalization
Started by fossilshark |
38 Replies
9180 Views |
by fossilshark |
|
|
3 Replies
2394 Views |
by sluckey |
|
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 |