Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 07:00:26 am | ||
| Subject / Started by | Replies / Views | Last post ![]() |
||
|---|---|---|---|---|
| 0 Members and 54 Guests are viewing this board. | ||||
|
|
Circuit Analysis
Started by Nathan |
5 Replies
3494 Views |
by Nathan |
|
|
Pull down resistor question
Started by g-man |
4 Replies
2897 Views |
by stratomaster |
|
|
What parts determine tone?
Started by pbman1953 |
38 Replies
10293 Views |
by pbman1953 |
|
|
3 Replies
3425 Views |
by stratomaster |
|
|
|
Risson Marvel 12E bias setting cold
Started by Pavedog |
42 Replies
11473 Views |
by johnnyreece |
|
|
Matamp GT120 clone build
Started by hiegdk |
5 Replies
6077 Views |
by MadAsAHatter |
|
|
Add Vu meter to pre-amp
Started by BrainDeadAmps |
0 Replies
2089 Views |
by BrainDeadAmps |
|
|
29 Replies
11973 Views |
by wsscott |
|
|
|
MOVED: ADA MP1 schematic question
Started by sluckey |
0 Replies
2051 Views |
by sluckey |
|
|
Hoffman Princeton build in a PRRI Chassis
Started by Jrusto |
5 Replies
2934 Views |
by sluckey |
|
|
5 Replies
2946 Views |
by Miyagi_83 |
|
|
|
6 Replies
3130 Views |
by HotBluePlates |
|
|
|
26 Replies
8788 Views |
by murrayatuptown |
|
|
|
Another Mystery Transformer Query, sorry...
Started by tdvt |
6 Replies
3094 Views |
by tdvt |
|
|
Step down PT test
Started by AlNewman |
18 Replies
5909 Views |
by AlNewman |
|
|
5 Replies
3837 Views |
by passaloutre |
|
|
|
6 Replies
3092 Views |
by Lambertini |
|
|
|
0 Replies
2487 Views |
by spunko |
|
|
|
7 Replies
3511 Views |
by daveneary |
|
|
|
Ampro PA-3 head
Started by CrocMule |
16 Replies
5433 Views |
by PRR |
|
|
27 Replies
6570 Views |
by tdvt |
|
|
|
31 Replies
8649 Views |
by tinkering |
|
|
|
5 Replies
2881 Views |
by PRR |
|
|
|
0 Replies
1907 Views |
by kagliostro |
|
|
|
18 Replies
4582 Views |
by passaloutre |
|
|
|
6 Replies
3589 Views |
by spunko |
|
|
|
5 Replies
3134 Views |
by AlNewman |
|
|
|
6G15 + Tremodrive
Started by J3ona1 |
2 Replies
2151 Views |
by J3ona1 |
|
|
Trem-O-Nator Vactrol?
Started by tdvt |
3 Replies
2374 Views |
by sluckey |
|
|
Suitable Shoulder Washer & Flat Washer
Started by Pollys13a |
10 Replies
4243 Views |
by EL34 |
|
|
New amp D-763
Started by tubenit |
9 Replies
3778 Views |
by Platefire |
|
|
16 Replies
4839 Views |
by Pollys13a |
|
|
|
Sluckey’s M-2 Magnatone
Started by Jhj |
13 Replies
4431 Views |
by Jhj |
|
|
Odd question about heater wires...
Started by AmberB |
3 Replies
2484 Views |
by glass54 |
|
|
18 Replies
5379 Views |
by acheld |
|
|
|
10 Replies
5262 Views |
by GuitarPilot65 |
|
|
|
Issue on one channel, global effect?
Started by tdvt |
2 Replies
2217 Views |
by tdvt |
|
|
8 Replies
3548 Views |
by sluckey |
|
|
|
I got the "bug" again.....
Started by Jonas |
8 Replies
3843 Views |
by Jonas |
|
|
What is preamp tube transconductance?
Started by Jonas |
6 Replies
3536 Views |
by Jonas |
|
|
5f10 shared plate resistors
Started by TurboGuitarMelton |
4 Replies
2690 Views |
by 66Strat |
|
|
Voltage doubling rectifier
Started by dwinstonwood |
9 Replies
4157 Views |
by HotBluePlates |
|
|
Blown tube?
Started by dbishopbliss |
4 Replies
2996 Views |
by tubeswell |
|
|
Hoffman Princeton build in a PRRI Chassis
Started by Jrusto |
14 Replies
5285 Views |
by sluckey |
|
|
Princtone Reverb No Tremolo with EL84's
Started by Smradek |
3 Replies
2740 Views |
by tdvt |
|
|
Vox AC4 switch question
Started by Kesi from Hungary |
6 Replies
3125 Views |
by Kesi from Hungary |
|
|
High pitched noise 15 watt tube amp Monoprice
Started by sausetron@yahoo.com |
2 Replies
3067 Views |
by sausetron@yahoo.com |
|
|
Fender accessory jack
Started by Diverted |
14 Replies
5135 Views |
by sluckey |
|
|
6 Replies
5387 Views |
by tinkering |
|
|
|
5 Replies
3881 Views |
by PRR |
|
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 |