Welcome To the Hoffman Amplifiers Forum
September 06, 2025, 03:13:14 am
Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 03:13:14 am | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| 0 Members and 24 Guests are viewing this board. | ||||
|
|
MOVED: ADA MP1 schematic question
Started by sluckey |
0 Replies
1289 Views |
March 18, 2024, 03:22:34 pmby sluckey |
|
|
Hoffman Princeton build in a PRRI Chassis
Started by Jrusto |
5 Replies
1923 Views |
March 18, 2024, 11:59:17 am by sluckey |
|
|
|
5 Replies
1974 Views |
March 18, 2024, 11:58:10 am by Miyagi_83 |
|
|
|
|
6 Replies
2067 Views |
March 17, 2024, 07:25:31 pm by HotBluePlates |
|
|
|
26 Replies
6720 Views |
March 16, 2024, 11:22:29 pm by murrayatuptown |
|
|
|
|
Another Mystery Transformer Query, sorry...
Started by tdvt |
6 Replies
2110 Views |
March 16, 2024, 09:03:48 pm by tdvt |
|
|
|
Step down PT test
Started by AlNewman |
18 Replies
3881 Views |
March 16, 2024, 06:13:56 pm by AlNewman |
|
|
|
5 Replies
2551 Views |
March 15, 2024, 12:11:34 am by passaloutre |
|
|
|
|
6 Replies
2081 Views |
March 14, 2024, 07:29:24 pm by Lambertini |
|
|
|
|
0 Replies
1564 Views |
March 14, 2024, 05:22:34 pm by spunko |
|
|
|
|
7 Replies
2413 Views |
March 14, 2024, 09:44:52 am by daveneary |
|
|
|
|
Ampro PA-3 head
Started by CrocMule |
16 Replies
3833 Views |
March 13, 2024, 10:08:08 pm by PRR |
|
|
|
27 Replies
4581 Views |
March 13, 2024, 08:48:24 am by tdvt |
|
|
|
|
31 Replies
5651 Views |
March 13, 2024, 12:28:55 am by tinkering |
|
|
|
|
5 Replies
1936 Views |
March 12, 2024, 05:49:12 pm by PRR |
|
|
|
|
0 Replies
1243 Views |
March 12, 2024, 05:04:28 pm by kagliostro |
|
|
|
|
18 Replies
3314 Views |
March 12, 2024, 08:49:58 am by passaloutre |
|
|
|
|
6 Replies
2424 Views |
March 12, 2024, 12:07:33 am by spunko |
|
|
|
|
5 Replies
2087 Views |
March 11, 2024, 09:05:15 pm by AlNewman |
|
|
|
|
6G15 + Tremodrive
Started by J3ona1 |
2 Replies
1493 Views |
March 11, 2024, 02:41:09 pm by J3ona1 |
|
|
|
Trem-O-Nator Vactrol?
Started by tdvt |
3 Replies
1570 Views |
March 11, 2024, 12:56:02 pm by sluckey |
|
|
|
Suitable Shoulder Washer & Flat Washer
Started by Pollys13a |
10 Replies
2925 Views |
March 11, 2024, 08:21:25 am by EL34 |
|
|
|
New amp D-763
Started by tubenit |
9 Replies
2754 Views |
March 10, 2024, 04:10:06 pm by Platefire |
|
|
|
16 Replies
3361 Views |
March 10, 2024, 01:32:02 pm by Pollys13a |
|
|
|
|
Sluckey’s M-2 Magnatone
Started by Jhj |
13 Replies
3096 Views |
March 09, 2024, 10:03:04 pm by Jhj |
|
|
|
Odd question about heater wires...
Started by AmberB |
3 Replies
1718 Views |
March 09, 2024, 09:05:39 pm by glass54 |
|
|
|
18 Replies
3756 Views |
March 09, 2024, 09:57:32 am by acheld |
|
|
|
|
10 Replies
3568 Views |
March 08, 2024, 03:50:43 pm by GuitarPilot65 |
|
|
|
|
Issue on one channel, global effect?
Started by tdvt |
2 Replies
1520 Views |
March 08, 2024, 08:52:43 am by tdvt |
|
|
|
8 Replies
2552 Views |
March 07, 2024, 10:15:44 pm by sluckey |
|
|
|
|
I got the "bug" again.....
Started by Jonas |
8 Replies
2659 Views |
March 07, 2024, 05:20:53 pm by Jonas |
|
|
|
What is preamp tube transconductance?
Started by Jonas |
6 Replies
2328 Views |
March 07, 2024, 05:01:52 pm by Jonas |
|
|
|
5f10 shared plate resistors
Started by TurboGuitarMelton |
4 Replies
1862 Views |
March 07, 2024, 10:19:02 am by 66Strat |
|
|
|
Voltage doubling rectifier
Started by dwinstonwood |
9 Replies
2848 Views |
March 07, 2024, 01:47:14 am by HotBluePlates |
|
|
|
Blown tube?
Started by dbishopbliss |
4 Replies
1975 Views |
March 06, 2024, 01:17:52 pm by tubeswell |
|
|
|
Hoffman Princeton build in a PRRI Chassis
Started by Jrusto |
14 Replies
3218 Views |
March 06, 2024, 10:14:11 am by sluckey |
|
|
|
Princtone Reverb No Tremolo with EL84's
Started by Smradek |
3 Replies
1834 Views |
March 06, 2024, 09:48:49 am by tdvt |
|
|
|
Vox AC4 switch question
Started by Kesi from Hungary |
6 Replies
2086 Views |
March 05, 2024, 11:18:08 pm by Kesi from Hungary |
|
|
|
High pitched noise 15 watt tube amp Monoprice
Started by sausetron@yahoo.com |
2 Replies
1968 Views |
March 05, 2024, 08:52:57 pm by sausetron@yahoo.com |
|
|
|
Fender accessory jack
Started by Diverted |
14 Replies
3410 Views |
March 05, 2024, 06:38:07 pm by sluckey |
|
|
|
6 Replies
3853 Views |
March 05, 2024, 06:14:23 pm by tinkering |
|
|
|
|
5 Replies
2621 Views |
March 05, 2024, 01:13:40 pm by PRR |
|
|
|
|
6 Replies
2038 Views |
March 05, 2024, 01:08:32 pm by PRR |
|
|
|
|
6DN3 vs 6CJ3 - interchangeable?
Started by kasperbergholt |
1 Replies
1809 Views |
March 05, 2024, 11:39:05 am by kasperbergholt |
|
|
|
Mullard 3-3 is not amazing
Started by jewishjay |
6 Replies
2631 Views |
March 04, 2024, 08:05:31 pm by glass54 |
|
|
100 Replies
12114 Views |
March 03, 2024, 06:43:25 pm by wsscott |
|
|
|
|
8 Replies
2433 Views |
March 03, 2024, 05:48:10 pm by dude |
|
|
|
|
record-O-Phone Reel to Reel. Any Ideas?
Started by silat |
10 Replies
2422 Views |
March 03, 2024, 11:14:29 am by silat |
|
|
|
10 Replies
2968 Views |
March 03, 2024, 06:16:30 am by HotBluePlates |
|
|
|
|
Reuse PT and OT for very different build?
Started by Erik Aa |
10 Replies
2544 Views |
March 02, 2024, 06:42:13 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 |