Welcome To the Hoffman Amplifiers Forum
September 06, 2025, 12:39:04 pm
Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 12:39:04 pm | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| jansch, jukelemon and 26 Guests are viewing this board. | ||||
|
|
Intentional impedance mismatch questions
Started by osing |
4 Replies
3612 Views |
September 08, 2011, 10:07:03 pmby HotBluePlates |
|
|
|
Transformers PT vs OT
Started by Ed_Chambley |
3 Replies
2167 Views |
September 08, 2011, 05:46:46 am by FYL |
|
|
|
Fender RI Reverb hand wired conversion kit?
Started by chuggy |
1 Replies
2279 Views |
September 06, 2011, 10:14:34 pm by sluckey |
|
|
|
12 Replies
5616 Views |
September 06, 2011, 09:27:46 pm by Matty_V |
|
|
|
Laney, schematics and books.
Started by Lennart |
31 Replies
13338 Views |
September 06, 2011, 12:50:59 pm by Lennart |
|
|
|
Hot Rod Deville crackle
Started by Tiny_Daddy |
9 Replies
4030 Views |
September 06, 2011, 11:53:25 am by rzenc |
|
|
|
AB763 with 4x6V6
Started by rzenc |
7 Replies
4721 Views |
September 05, 2011, 06:56:17 pm by DummyLoad |
|
|
|
Non Polarized Filter Caps
Started by dpm309 |
16 Replies
5940 Views |
September 05, 2011, 04:06:52 pm by FYL |
|
|
|
Doubled triode?
Started by 67polara |
11 Replies
4316 Views |
September 05, 2011, 03:12:08 pm by tubeswell |
|
|
|
Blues Jr - cathode bias mod?
Started by bluesbear |
10 Replies
5959 Views |
September 05, 2011, 12:23:28 pm by John |
|
|
MOVED: which tool ?
Started by tubenit |
0 Replies
2017 Views |
September 05, 2011, 07:39:52 am by tubenit |
|
|
|
Fresh new AB165 build
Started by Danskman |
7 Replies
3086 Views |
September 05, 2011, 04:17:38 am by tubeswell |
|
|
|
Master Volume type 3 help
Started by Megachunk |
13 Replies
6962 Views |
September 04, 2011, 11:37:43 am by sluckey |
|
|
|
NOS Stancor PT ???
Started by zapped |
7 Replies
4364 Views |
September 04, 2011, 11:07:33 am by jjasilli |
|
|
|
Problem biasing for correct voltage
Started by dude |
27 Replies
8404 Views |
September 03, 2011, 12:20:46 pm by dude |
|
|
|
Now the noise
Started by Matty_V |
16 Replies
4703 Views |
September 03, 2011, 11:18:36 am by dpm309 |
|
|
|
0 Replies
1947 Views |
September 03, 2011, 07:04:38 am by EL34 |
|
|
|
|
Help with 2204 please!
Started by Matty_V |
16 Replies
5015 Views |
September 02, 2011, 11:11:50 pm by Matty_V |
|
|
|
Carolina SongBird PLUS
Started by tubenit |
1 Replies
2519 Views |
September 02, 2011, 10:33:43 pm by sdp1234 |
|
|
|
AC30 Plus Deluxe Reverb
Started by Ed_Chambley |
19 Replies
7068 Views |
September 02, 2011, 11:09:39 am by Ed_Chambley |
|
|
|
5F6A Tweed Bassman Power Transformer
Started by accmeint |
2 Replies
2710 Views |
September 02, 2011, 10:47:25 am by eleventeen |
|
|
|
15 Replies
19623 Views |
September 01, 2011, 05:31:27 pm by jojokeo |
|
|
|
|
voltages on a schematic
Started by dude |
3 Replies
2625 Views |
September 01, 2011, 02:58:19 pm by stratele52 |
|
|
|
4 Replies
2857 Views |
September 01, 2011, 01:59:22 am by kagliostro |
|
|
|
|
PI problem
Started by Matty_V |
12 Replies
3798 Views |
August 31, 2011, 04:52:32 pm by Matty_V |
|
|
|
022798 PT Orange Shield Wire
Started by dixiepig |
5 Replies
3289 Views |
August 31, 2011, 03:31:00 pm by dixiepig |
|
|
|
Vibro Champ Heater Wiring?
Started by blueznet |
11 Replies
8694 Views |
August 31, 2011, 01:11:07 pm by xm52 |
|
|
|
2204 SE done!
Started by Madison |
20 Replies
6510 Views |
August 31, 2011, 07:51:27 am by Madison |
|
|
|
Pot Problem Question
Started by Ed_Chambley |
8 Replies
3236 Views |
August 31, 2011, 06:16:59 am by frankeg |
|
|
|
Pot substitution question
Started by mpayne |
1 Replies
1995 Views |
August 31, 2011, 12:24:44 am by PRR |
|
|
|
jcm 900 slx 50w issues
Started by 961le |
4 Replies
3174 Views |
August 30, 2011, 08:43:05 pm by 961le |
|
|
|
eletrolytic radial vs axial
Started by tcoil |
2 Replies
2567 Views |
August 29, 2011, 11:04:09 pm by PRR |
|
|
|
Marshall Jubilee tonestack
Started by RobBozic |
2 Replies
2640 Views |
August 29, 2011, 05:38:19 pm by RobBozic |
|
|
|
Power Amp Rewire (Plexi Gain 20 )
Started by TIMBO |
2 Replies
2186 Views |
August 29, 2011, 02:27:39 pm by TIMBO |
|
|
|
"actual" plate voltage ?
Started by worth |
3 Replies
3031 Views |
August 29, 2011, 12:34:16 pm by sluckey |
|
|
|
My Traynor YBA-3A Super seems weaker
Started by pbman1953 |
18 Replies
6215 Views |
August 29, 2011, 10:49:34 am by pbman1953 |
|
|
|
16 Replies
12308 Views |
August 29, 2011, 06:58:12 am by kagliostro |
|
|
|
|
Boogie 50 Caliber repair
Started by six el six |
13 Replies
5351 Views |
August 29, 2011, 03:33:59 am by six el six |
|
|
|
parallel output tube bias ?
Started by worth |
16 Replies
5105 Views |
August 29, 2011, 12:50:52 am by tubeswell |
|
|
|
5 Replies
2444 Views |
August 28, 2011, 02:25:18 pm by HotBluePlates |
|
|
|
|
transformer damage?
Started by CraigB |
9 Replies
3584 Views |
August 28, 2011, 12:13:27 pm by CraigB |
|
|
|
VVR. Entire amp or power section?
Started by Madison |
9 Replies
4573 Views |
August 28, 2011, 12:33:45 am by Madison |
|
|
|
PLEXI GAIN 20 with BUZZ
Started by TIMBO |
18 Replies
4627 Views |
August 27, 2011, 03:26:06 pm by TIMBO |
|
|
|
67 Bassman head pin voltages
Started by Craselaw |
19 Replies
8715 Views |
August 27, 2011, 12:10:32 pm by eleventeen |
|
|
|
11 Replies
6675 Views |
August 26, 2011, 05:39:34 pm by HotBluePlates |
|
|
|
|
Deluxe Reverb problem?
Started by mresistor |
9 Replies
3842 Views |
August 26, 2011, 12:53:36 am by Rev D |
|
|
|
dialing in your NFB tone
Started by tubenit |
17 Replies
8390 Views |
August 25, 2011, 12:43:52 am by PRR |
|
|
|
power supply help
Started by ernie_jr |
9 Replies
3569 Views |
August 24, 2011, 11:55:31 pm by PRR |
|
|
|
3 Replies
4826 Views |
August 24, 2011, 11:17:19 pm by stingray_65 |
|
|
|
|
More headroom
Started by John |
5 Replies
2746 Views |
August 24, 2011, 09:20:52 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 |