Welcome To the Hoffman Amplifiers Forum
July 25, 2026, 09:02:57 am
Welcome To the Hoffman Amplifiers ForumJuly 25, 2026, 09:02:57 am | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| 0 Members and 1 Guest are viewing this board. | ||||
|
|
Relay circuit & layout board & ft switch
Started by tubenit |
43 Replies
141399 Views |
February 23, 2026, 10:47:34 amby acheld |
|
|
182 Replies
335371 Views |
February 16, 2026, 02:36:14 pm by Jesus Freak |
|
|
|
|
162 Replies
285571 Views |
June 29, 2023, 10:31:14 am by jojokeo |
|
|
|
|
54 Replies
141439 Views |
March 17, 2022, 04:47:19 am by catalin gramada |
|
|
|
Wire Jacket Voltage post
Started by EL34 |
7 Replies
37223 Views |
February 21, 2022, 07:46:50 pm by shooter |
|
|
|
53 Replies
104036 Views |
September 27, 2020, 10:23:28 pm by jojokeo |
|
|
|
|
Trem-o-nator (Sluckey's)
Started by tubenit |
4 Replies
21521 Views |
August 14, 2020, 11:36:57 am by tubenit |
|
|
|
8 Replies
52247 Views |
May 10, 2019, 06:10:18 am by tubenit |
|
|
|
|
Mosfet cathode follower
Started by tubenit |
7 Replies
35889 Views |
May 02, 2019, 07:02:27 pm by sluckey |
|
|
|
Master Volume
Started by NannerPuddin |
21 Replies
55787 Views |
March 13, 2019, 11:39:09 am by Papa Jim |
|
|
|
VVR and cathode biased amps
Started by tubenit |
25 Replies
76996 Views |
May 18, 2018, 04:51:44 am by tubenit |
|
|
|
Amp building steps and procedure
Started by tubenit |
1 Replies
26819 Views |
January 01, 2018, 11:34:14 pm by Raybob |
|
|
|
Hoffman AB763 Tremolo 6L6 mods?
Started by bnwitt |
26 Replies
79976 Views |
December 20, 2017, 03:05:56 am by stringbender.dk |
|
|
|
6 Replies
28026 Views |
June 08, 2017, 01:07:30 pm by tubenit |
|
|
|
|
Tube spacing in chassis
Started by tubenit |
4 Replies
27608 Views |
July 26, 2016, 05:05:47 am by tubenit |
|
|
How to trace out a circuit problem
Started by EL34 |
0 Replies
91809 Views |
June 15, 2005, 07:49:14 am by EL34 |
|
|
zener diode trick to lower B+ volts
Started by tubenit |
16 Replies
51556 Views |
January 03, 2025, 02:44:52 pm by wdelaney72 |
|
|
76 Replies
109192 Views |
June 02, 2023, 05:09:07 pm by passaloutre |
|
|
|
|
Chassis plug fuses
Started by amitay3333 |
1 Replies
11619 Views |
May 14, 2023, 09:16:46 pm by acheld |
|
|
|
Pentode - triode switch power tubes
Started by tubenit |
0 Replies
16863 Views |
March 02, 2023, 07:32:46 am by tubenit |
|
|
(Archive) Frequently Asked Questions
Started by tbeck |
32 Replies
72162 Views |
October 05, 2021, 01:08:04 pm by sluckey |
|
|
MOVED: Re: Adding 1-tube reverb
Started by tubenit |
0 Replies
19818 Views |
November 15, 2020, 03:48:48 pm by tubenit |
|
|
|
6BM8 reverb (capacitor driven & other)
Started by tubenit |
9 Replies
20938 Views |
September 15, 2019, 03:04:55 pm by DummyLoad |
|
|
|
Hoffman Plexi 50W Grid Stoppers on V1
Started by mike123 |
5 Replies
18793 Views |
September 03, 2017, 08:37:48 pm by mike123 |
|
|
|
Control Panel Template - SmartDraw
Started by purpletele |
13 Replies
25552 Views |
June 01, 2017, 11:14:52 am by purpletele |
|
|
|
4 knob tone stack
Started by tubenit |
12 Replies
29570 Views |
October 19, 2016, 09:00:53 am by kagliostro |
|
|
|
5E3 with Choke Voltage Chart
Started by EL34 |
6 Replies
84630 Views |
August 06, 2016, 10:09:13 pm by super&plexi |
|
|
|
Fender face plates
Started by bassmoe |
2 Replies
21688 Views |
April 08, 2016, 04:23:39 pm by MoparWade |
|
|
|
(Archive) Coupling Capacitors
Started by radar01 |
11 Replies
58624 Views |
March 16, 2015, 09:19:43 am by Voxbox |
|
|
|
6V6 to 6BM8 or EL84 socket adaptor
Started by tubenit |
5 Replies
21086 Views |
April 04, 2014, 11:29:49 am by jojokeo |
|
|
|
90 Replies
136484 Views |
March 01, 2014, 01:25:39 pm by kagliostro |
|
|
|
|
figuring approx. output wattage
Started by phsyconoodler |
13 Replies
35578 Views |
August 29, 2013, 01:35:21 pm by LHPcope |
|
|
|
13 Replies
27663 Views |
September 03, 2012, 10:19:02 am by EL34 |
|
|
|
|
space between turrets
Started by richierick |
15 Replies
31190 Views |
March 20, 2008, 06:14:10 am by EL34 |
|
|
|
*umbolt lite done.
Started by phsyconoodler « 1 2 » |
82 Replies
76850 Views |
December 20, 2007, 02:26:48 pm by phsyconoodler |
|
|
|
(Archive) REVIBE
Started by beatroot |
16 Replies
55930 Views |
October 25, 2007, 04:16:47 pm by EL34 |
|
|
|
115 Replies
133621 Views |
February 25, 2007, 04:09:23 am by Geezer |
|
|
|
|
Choke input filters
Started by Geezer |
14 Replies
61588 Views |
December 12, 2006, 09:57:15 am by jjasilli |
|
|
|
10 Replies
51361 Views |
January 24, 2006, 06:30:12 pm by BriteLite |
|
|
|
|
Board Members- Equipment / Influences
Started by EL34 |
0 Replies
76648 Views |
June 15, 2005, 09:22:45 am by EL34 |
|
|
|
A question for PHAT amps
Started by EL34 |
0 Replies
78185 Views |
June 15, 2005, 07:58:41 am by EL34 |
|
|
|
Nice Marshall Circuits link
Started by EL34 |
0 Replies
79391 Views |
June 15, 2005, 07:57:22 am by EL34 |
|
|
|
0 Replies
80686 Views |
June 15, 2005, 07:56:39 am by EL34 |
|
|
|
|
Phase Inverter Questions
Started by EL34 |
0 Replies
78000 Views |
June 15, 2005, 07:55:59 am by EL34 |
|
|
|
output impedance
Started by EL34 |
0 Replies
83001 Views |
June 15, 2005, 07:55:19 am by EL34 |
|
|
|
5E3 6L6 conversion suggested OT??
Started by EL34 |
0 Replies
81383 Views |
June 15, 2005, 07:54:37 am by EL34 |
|
|
|
0 Replies
81049 Views |
June 15, 2005, 07:53:53 am by EL34 |
|
|
|
|
Modded phase inverter is motorboating
Started by EL34 |
0 Replies
80937 Views |
June 15, 2005, 07:52:19 am by EL34 |
|
|
|
100 ohm resister vs heater center tap
Started by EL34 |
0 Replies
82465 Views |
June 15, 2005, 07:50:56 am by EL34 |
|
|
|
0 Replies
83771 Views |
June 15, 2005, 07:49:57 am by EL34 |
|
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 |