Welcome To the Hoffman Amplifiers Forum
January 23, 2026, 07:59:23 pm
Welcome To the Hoffman Amplifiers ForumJanuary 23, 2026, 07:59:23 pm | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| Joel and 48 Guests are viewing this board. | ||||
|
|
Hot switch or JCM 800
Started by Bigampman |
9 Replies
3846 Views |
May 26, 2023, 10:59:24 amby pdf64 |
|
|
Gibson GA-16T/18T done
Started by Blooze |
29 Replies
7556 Views |
May 25, 2023, 08:40:30 pm by Blooze |
|
|
|
6SJ7 driven tremolo? Silvertone1333
Started by Jerry garrcia |
1 Replies
2204 Views |
May 25, 2023, 04:42:40 pm by sluckey |
|
|
|
Hum from power section
Started by Colas LeGrippa |
11 Replies
3948 Views |
May 25, 2023, 12:09:21 pm by Colas LeGrippa |
|
|
|
jcm800 2204 noisy
Started by fossilshark |
3 Replies
2825 Views |
May 25, 2023, 09:22:14 am by fossilshark |
|
|
|
Marshall 2550 schematic
Started by Leevi |
1 Replies
2951 Views |
May 25, 2023, 06:30:26 am by sluckey |
|
|
|
7 Replies
3317 Views |
May 25, 2023, 06:21:13 am by sluckey |
|
|
|
|
5 Replies
2873 Views |
May 25, 2023, 02:46:55 am by kagliostro |
|
|
|
|
32 Replies
8109 Views |
May 24, 2023, 08:46:35 pm by Apexelectric |
|
|
|
|
0 Replies
2270 Views |
May 24, 2023, 07:16:08 pm by marshallguy |
|
|
|
|
5 Replies
3842 Views |
May 23, 2023, 09:36:41 pm by Amped |
|
|
|
|
Cathode bias amp variable resistor
Started by Colas LeGrippa |
19 Replies
6246 Views |
May 23, 2023, 07:04:33 pm by Colas LeGrippa |
|
|
|
EF86 Microphonics and RF coupling?
Started by Jalmeida |
1 Replies
2301 Views |
May 23, 2023, 12:46:50 pm by Williamblake |
|
|
|
Rob Robinette Champ Micro Build
Started by AndrewD |
6 Replies
3746 Views |
May 23, 2023, 06:45:35 am by kagliostro |
|
|
|
Weird power amp wiring
Started by Leevi |
3 Replies
2739 Views |
May 22, 2023, 04:13:35 pm by PRR |
|
|
|
21 Replies
6457 Views |
May 22, 2023, 04:32:28 am by pdf64 |
|
|
|
|
8 Replies
3758 Views |
May 21, 2023, 08:27:23 pm by bmccowan |
|
|
|
|
Gibson GA-18T Tremolo
Started by Blooze |
10 Replies
4456 Views |
May 21, 2023, 09:05:14 am by sluckey |
|
|
|
1 Replies
2376 Views |
May 20, 2023, 07:37:59 pm by 72Blazer |
|
|
|
|
PP valve amp KT88 BIAS-question
Started by cfortner |
22 Replies
6376 Views |
May 20, 2023, 04:36:51 pm by cfortner |
|
|
|
Filmosound 202 Help
Started by oogabooga23 |
6 Replies
3726 Views |
May 20, 2023, 12:27:31 pm by BrainDeadAmps |
|
|
139 Replies
30804 Views |
May 19, 2023, 09:00:02 pm by acheld |
|
|
|
|
Vox AC15C1 Burning 5 Watt Resistors
Started by Pavels07 |
10 Replies
5190 Views |
May 19, 2023, 05:32:46 pm by AmberB |
|
|
|
Channel switch grid reference
Started by BrainDeadAmps |
2 Replies
2801 Views |
May 19, 2023, 04:05:08 pm by BrainDeadAmps |
|
|
|
32 Replies
9915 Views |
May 18, 2023, 11:34:09 am by munkeyboy |
|
|
|
|
13 Replies
5433 Views |
May 18, 2023, 08:41:41 am by sluckey |
|
|
|
|
Fender Twin Reverb Troubleshooting
Started by NoDough |
20 Replies
8237 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
4321 Views |
May 17, 2023, 07:14:36 am by jhanly |
|
|
|
SE Amp Project
Started by Rontone |
7 Replies
3399 Views |
May 16, 2023, 11:15:23 pm by AmberB |
|
|
|
4 Replies
2826 Views |
May 16, 2023, 09:21:45 pm by Buck Webster |
|
|
|
|
Line out Issue
Started by BrainDeadAmps |
4 Replies
2870 Views |
May 16, 2023, 04:49:18 pm by sluckey |
|
|
|
What to build?
Started by squierstrat |
11 Replies
3857 Views |
May 16, 2023, 02:38:12 pm by squierstrat |
|
|
|
Hammond 290 Series Ratings
Started by W5FH |
8 Replies
4472 Views |
May 16, 2023, 10:27:54 am by acheld |
|
|
|
cathode follower and the preceeding stage
Started by 12AX7 |
18 Replies
7937 Views |
May 16, 2023, 06:53:30 am by marshallguy |
|
|
|
AB763 nornal channel mod
Started by joesatch |
13 Replies
4095 Views |
May 16, 2023, 04:58:14 am by dwinstonwood |
|
|
|
Single ended "Mariace" finished
Started by rafaelctt |
9 Replies
4208 Views |
May 16, 2023, 12:27:18 am by rafaelctt |
|
|
|
Vox AC15C1 reverb tank question
Started by Electron Tornado |
1 Replies
2462 Views |
May 15, 2023, 03:20:27 am by Latole |
|
|
|
Anti-parallel rectifier
Started by BrainDeadAmps |
9 Replies
3597 Views |
May 14, 2023, 09:01:12 am by astronomicum |
|
|
|
My amp build sounds like a theremin
Started by Duncan |
20 Replies
5949 Views |
May 14, 2023, 07:24:01 am by sluckey |
|
|
|
16 Replies
5589 Views |
May 13, 2023, 06:17:14 pm by sluckey |
|
|
|
|
Epiphone Electar Century AC-DC 1940
Started by Apexelectric |
27 Replies
10773 Views |
May 13, 2023, 01:36:01 pm by TheAudioMechanic |
|
|
|
Less is more: 25uF instead of 50
Started by Colas LeGrippa |
4 Replies
2996 Views |
May 13, 2023, 08:58:30 am by Colas LeGrippa |
|
|
|
Fender Musicmaster Bass Amp
Started by TIMBO |
20 Replies
16254 Views |
May 13, 2023, 04:31:39 am by TIMBO |
|
|
|
Driver for KT88 quad?
Started by Balticnoiseforge |
8 Replies
4111 Views |
May 13, 2023, 02:08:59 am by Balticnoiseforge |
|
|
|
Princeton Reverb with 6AQ5 tubes
Started by Bieworm |
17 Replies
6731 Views |
May 12, 2023, 04:14:58 pm by Bieworm |
|
|
|
10 Replies
3867 Views |
May 12, 2023, 03:36:46 pm by tubenit |
|
|
|
|
Low Voltage JTM45 - Maybe?
Started by dbishopbliss |
8 Replies
4288 Views |
May 12, 2023, 10:28:21 am by pdf64 |
|
|
|
2 Replies
2629 Views |
May 12, 2023, 10:27:08 am by Platefire |
|
|
|
|
6G7A Bandmaster Tremolo Noise?
Started by jazjamr |
3 Replies
2603 Views |
May 10, 2023, 07:43:10 am by jazjamr |
|
|
|
6P1P wiring
Started by Bieworm |
3 Replies
2895 Views |
May 09, 2023, 03:12:25 pm by HotBluePlates |
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 |