Welcome To the Hoffman Amplifiers Forum
September 06, 2025, 04:44:12 pm
Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 04:44:12 pm | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| 0 Members and 22 Guests are viewing this board. | ||||
|
|
2 Replies
1789 Views |
January 12, 2021, 07:24:13 pmby sluckey |
|
|
|
|
COS build
Started by Auke Jolman |
16 Replies
4338 Views |
January 12, 2021, 11:28:07 am by Auke Jolman |
|
|
|
Cathode biasing a pair of EL34s
Started by dude |
10 Replies
4826 Views |
January 11, 2021, 07:45:32 pm by dude |
|
|
|
14 Replies
4281 Views |
January 11, 2021, 03:44:21 am by Latole |
|
|
|
|
Rob Robinette RR 763 BUILD WHAT CHASSIS?
Started by mikhett |
1 Replies
1868 Views |
January 10, 2021, 03:33:59 pm by jordan86 |
|
|
|
Hagström 310 - make it more Supro-esque?
Started by Sesh |
11 Replies
4456 Views |
January 10, 2021, 03:23:29 pm by sluckey |
|
|
|
21 Replies
5454 Views |
January 10, 2021, 02:01:26 pm by Mike_J |
|
|
|
|
PPIMV question
Started by dude |
11 Replies
3682 Views |
January 10, 2021, 12:03:15 pm by dude |
|
|
|
7 Replies
2527 Views |
January 09, 2021, 08:05:28 am by pbman1953 |
|
|
|
Why did my filter cap go poof?
Started by jewishjay |
29 Replies
5828 Views |
January 08, 2021, 08:40:18 pm by sluckey |
|
|
|
26 Replies
8139 Views |
January 08, 2021, 05:02:36 pm by AHeck |
|
|
|
|
Biasing/hum issue, Fender Bassman AB165
Started by Diverted |
5 Replies
2663 Views |
January 08, 2021, 02:29:41 pm by Diverted |
|
|
|
Good deal on a Dual Showman?
Started by jordan86 |
23 Replies
5490 Views |
January 08, 2021, 12:27:05 pm by jordan86 |
|
|
|
24 Replies
4993 Views |
January 08, 2021, 11:18:58 am by Mike_J |
|
|
|
|
power rating calculations (math inside)
Started by Sansteeth |
12 Replies
2920 Views |
January 07, 2021, 10:49:43 pm by 2deaf |
|
|
|
Super reverb tube bias
Started by Underwood |
5 Replies
2956 Views |
January 07, 2021, 05:46:28 am by sluckey |
|
|
|
Musicson 80+80
Started by chocopower |
17 Replies
5451 Views |
January 07, 2021, 04:08:08 am by chocopower |
|
|
|
0 Replies
1595 Views |
January 06, 2021, 06:13:26 pm by dankinzelman |
|
|
|
|
1 Replies
1464 Views |
January 06, 2021, 02:17:09 pm by mebond11 |
|
|
|
|
New Year Modularity - New Preamp Build
Started by Crestone |
15 Replies
3772 Views |
January 06, 2021, 06:18:49 am by Crestone |
|
|
|
Dual single ended 6V6 build issue
Started by Morse-Electric |
20 Replies
5890 Views |
January 05, 2021, 04:40:29 pm by PRR |
|
|
|
Supro 1605r can't find a schematic!
Started by swingarm |
6 Replies
3382 Views |
January 05, 2021, 11:53:16 am by swingarm |
|
|
|
I broke my amp
Started by dwinstonwood |
37 Replies
6366 Views |
January 05, 2021, 09:14:02 am by dwinstonwood |
|
|
|
dual 6V6 single end by DummyLoad
Started by Mungo Park |
2 Replies
1791 Views |
January 04, 2021, 10:28:54 pm by Mungo Park |
|
|
|
3 Replies
1808 Views |
January 04, 2021, 09:22:19 pm by Gareth81 |
|
|
|
|
12AX7 Stage 1 + 2 Biasing
Started by jordan86 |
3 Replies
2961 Views |
January 04, 2021, 08:50:17 pm by AmberB |
|
|
|
Sluckey AC-15R Build Reverb Issue
Started by shaun |
14 Replies
3793 Views |
January 04, 2021, 08:13:18 pm by sluckey |
|
|
|
First Build - Pro Junior???
Started by shark38j |
2 Replies
2323 Views |
January 04, 2021, 06:14:34 pm by scstill |
|
|
|
0 Replies
1629 Views |
January 04, 2021, 03:04:44 pm by Opry Audio |
|
|
|
|
ValveWizard PCB / BJ Hybrid Project
Started by acheld |
7 Replies
3047 Views |
January 04, 2021, 01:54:22 pm by Crestone |
|
|
|
Need help picking parts on the store
Started by proaudioguy |
4 Replies
2012 Views |
January 04, 2021, 10:09:07 am by sluckey |
|
|
|
4 Replies
2708 Views |
January 04, 2021, 04:36:32 am by DummyLoad |
|
|
|
|
16 Replies
4481 Views |
January 03, 2021, 10:01:31 pm by Lectroid |
|
|
|
|
Cap value not specified in 5e3
Started by Colas LeGrippa |
2 Replies
1544 Views |
January 03, 2021, 08:23:27 pm by Colas LeGrippa |
|
|
|
10 Replies
3336 Views |
January 03, 2021, 12:15:04 pm by Lavely |
|
|
|
|
Hoffman Pro Jr Turret board
Started by EL34 |
26 Replies
10131 Views |
January 03, 2021, 11:24:12 am by EL34 |
|
|
|
34 Replies
7981 Views |
January 02, 2021, 05:26:26 pm by thetragichero |
|
|
|
|
14 Replies
4819 Views |
January 02, 2021, 01:47:14 pm by NotWesYet |
|
|
|
|
Deluxe Micro Build Issues
Started by scstill |
18 Replies
4376 Views |
January 02, 2021, 01:35:04 pm by shooter |
|
|
|
Tone Stack distortion
Started by knebiter |
5 Replies
2144 Views |
January 01, 2021, 04:55:28 pm by knebiter |
|
|
|
9 Replies
3833 Views |
January 01, 2021, 04:10:53 pm by sluckey |
|
|
|
|
Stromberg Carlson Tone Stack Mod?
Started by jonathan_kea |
7 Replies
2816 Views |
January 01, 2021, 03:22:14 pm by jonathan_kea |
|
|
|
12AX7 as a reverb driver
Started by Patrik |
41 Replies
9543 Views |
January 01, 2021, 11:48:20 am by sluckey |
|
|
|
Tore Vibe 5H15T Tremolo Circuit
Started by TurboGuitarMelton |
2 Replies
2282 Views |
January 01, 2021, 01:15:57 am by PRR |
|
|
|
3 Replies
1999 Views |
December 31, 2020, 05:14:19 pm by centervolume |
|
|
|
|
Supro 6497 Circuit/Schematic
Started by scstill |
2 Replies
1837 Views |
December 31, 2020, 04:29:40 pm by scstill |
|
|
|
5 Replies
2792 Views |
December 31, 2020, 01:25:55 pm by PRR |
|
|
|
|
Tapping a filter cap creates crackle
Started by pbman1953 |
33 Replies
6678 Views |
December 31, 2020, 07:35:42 am by pbman1953 |
|
|
|
22 Replies
5928 Views |
December 30, 2020, 03:58:45 pm by Mike_J |
|
|
|
|
8 Replies
2641 Views |
December 30, 2020, 01:45:44 pm by coreythompsonhm |
|
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 |