Welcome To the Hoffman Amplifiers Forum
March 10, 2026, 10:14:00 pm
Welcome To the Hoffman Amplifiers ForumMarch 10, 2026, 10:14:00 pm | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| 0 Members and 35 Guests are viewing this board. | ||||
|
|
Marshall DSL 20R
Started by luthiernc |
0 Replies
2496 Views |
June 03, 2023, 06:05:45 amby luthiernc |
|
|
|
13 Replies
4695 Views |
June 02, 2023, 02:00:46 pm by PRR |
|
|
|
|
Parallel triode Rg values
Started by Esquirefreak |
3 Replies
2694 Views |
June 01, 2023, 01:42:27 pm by Esquirefreak |
|
|
|
8 Replies
4862 Views |
June 01, 2023, 12:51:18 pm by tubeswell |
|
|
|
|
Vox AC-15 Vibrato channel low volume
Started by sluckey |
8 Replies
4549 Views |
May 31, 2023, 10:31:13 pm by sluckey |
|
|
|
8 Replies
4155 Views |
May 31, 2023, 04:59:27 pm by fossilshark |
|
|
|
|
Bias Calculations for Cathode bias??
Started by Jalmeida |
10 Replies
4958 Views |
May 31, 2023, 11:02:58 am by Lectroid |
|
|
|
30ish watt bass amp
Started by Beezerboy |
16 Replies
5224 Views |
May 30, 2023, 08:19:17 am by Lectroid |
|
|
28 Replies
7343 Views |
May 29, 2023, 06:04:07 pm by jeff |
|
|
|
|
11 Replies
3992 Views |
May 29, 2023, 04:27:27 pm by mresistor |
|
|
|
|
11 Replies
4252 Views |
May 29, 2023, 12:54:43 pm by dude |
|
|
|
|
Gretsch Playboy 6156T No Schematic Found
Started by plexi50 |
12 Replies
4650 Views |
May 29, 2023, 11:07:44 am by plexi50 |
|
|
|
pre-made fwb rectifiers
Started by joesatch |
11 Replies
4319 Views |
May 29, 2023, 10:28:40 am by thetragichero |
|
|
|
5 Replies
3572 Views |
May 28, 2023, 04:06:11 pm by Porpoise Head |
|
|
|
|
1964 Vibroverb
Started by Rockranger |
9 Replies
4135 Views |
May 28, 2023, 12:39:32 pm by Rockranger |
|
|
|
Effects Loop Questions
Started by Rontone |
6 Replies
4302 Views |
May 28, 2023, 11:48:55 am by Rontone |
|
|
|
Nolan 50w Multi Purpose Amp Repair
Started by Rontone |
7 Replies
4291 Views |
May 28, 2023, 09:40:00 am by Rontone |
|
|
|
Traynor YVM-1 much needed repair
Started by fossilshark |
11 Replies
4504 Views |
May 28, 2023, 09:15:08 am by sluckey |
|
|
|
13 Replies
5180 Views |
May 27, 2023, 06:27:19 am by p2pAmps |
|
|
|
|
8 Replies
4157 Views |
May 26, 2023, 01:40:21 pm by tdvt |
|
|
|
|
Primary voltage readings
Started by TF2112 |
6 Replies
3292 Views |
May 26, 2023, 11:37:55 am by TF2112 |
|
|
|
Hot switch or JCM 800
Started by Bigampman |
9 Replies
4180 Views |
May 26, 2023, 10:59:24 am by pdf64 |
|
|
|
Gibson GA-16T/18T done
Started by Blooze |
29 Replies
8311 Views |
May 25, 2023, 08:40:30 pm by Blooze |
|
|
|
6SJ7 driven tremolo? Silvertone1333
Started by Jerry garrcia |
1 Replies
2481 Views |
May 25, 2023, 04:42:40 pm by sluckey |
|
|
|
Hum from power section
Started by Colas LeGrippa |
11 Replies
4372 Views |
May 25, 2023, 12:09:21 pm by Colas LeGrippa |
|
|
|
jcm800 2204 noisy
Started by fossilshark |
3 Replies
3151 Views |
May 25, 2023, 09:22:14 am by fossilshark |
|
|
|
Marshall 2550 schematic
Started by Leevi |
1 Replies
3340 Views |
May 25, 2023, 06:30:26 am by sluckey |
|
|
|
7 Replies
3632 Views |
May 25, 2023, 06:21:13 am by sluckey |
|
|
|
|
5 Replies
3152 Views |
May 25, 2023, 02:46:55 am by kagliostro |
|
|
|
|
32 Replies
9060 Views |
May 24, 2023, 08:46:35 pm by Apexelectric |
|
|
|
|
0 Replies
2560 Views |
May 24, 2023, 07:16:08 pm by marshallguy |
|
|
|
|
5 Replies
4301 Views |
May 23, 2023, 09:36:41 pm by Amped |
|
|
|
|
Cathode bias amp variable resistor
Started by Colas LeGrippa |
19 Replies
6808 Views |
May 23, 2023, 07:04:33 pm by Colas LeGrippa |
|
|
|
EF86 Microphonics and RF coupling?
Started by Jalmeida |
1 Replies
2575 Views |
May 23, 2023, 12:46:50 pm by Williamblake |
|
|
|
Rob Robinette Champ Micro Build
Started by AndrewD |
6 Replies
4123 Views |
May 23, 2023, 06:45:35 am by kagliostro |
|
|
|
Weird power amp wiring
Started by Leevi |
3 Replies
3041 Views |
May 22, 2023, 04:13:35 pm by PRR |
|
|
|
21 Replies
7169 Views |
May 22, 2023, 04:32:28 am by pdf64 |
|
|
|
|
8 Replies
4177 Views |
May 21, 2023, 08:27:23 pm by bmccowan |
|
|
|
|
Gibson GA-18T Tremolo
Started by Blooze |
10 Replies
5020 Views |
May 21, 2023, 09:05:14 am by sluckey |
|
|
|
1 Replies
2743 Views |
May 20, 2023, 07:37:59 pm by 72Blazer |
|
|
|
|
PP valve amp KT88 BIAS-question
Started by cfortner |
22 Replies
7025 Views |
May 20, 2023, 04:36:51 pm by cfortner |
|
|
|
Filmosound 202 Help
Started by oogabooga23 |
6 Replies
4190 Views |
May 20, 2023, 12:27:31 pm by BrainDeadAmps |
|
|
139 Replies
34553 Views |
May 19, 2023, 09:00:02 pm by acheld |
|
|
|
|
Vox AC15C1 Burning 5 Watt Resistors
Started by Pavels07 |
10 Replies
5739 Views |
May 19, 2023, 05:32:46 pm by AmberB |
|
|
|
Channel switch grid reference
Started by BrainDeadAmps |
2 Replies
3187 Views |
May 19, 2023, 04:05:08 pm by BrainDeadAmps |
|
|
|
32 Replies
11088 Views |
May 18, 2023, 11:34:09 am by munkeyboy |
|
|
|
|
13 Replies
6092 Views |
May 18, 2023, 08:41:41 am by sluckey |
|
|
|
|
Fender Twin Reverb Troubleshooting
Started by NoDough |
20 Replies
9090 Views |
May 17, 2023, 10:36:04 pm by mresistor |
|
|
|
How to read B+ current on my '69 Vox AC30?
Started by jhanly |
11 Replies
4855 Views |
May 17, 2023, 07:14:36 am by jhanly |
|
|
|
SE Amp Project
Started by Rontone |
7 Replies
3832 Views |
May 16, 2023, 11:15:23 pm by AmberB |
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 |