Welcome To the Hoffman Amplifiers Forum
September 07, 2025, 08:43:43 am
Welcome To the Hoffman Amplifiers ForumSeptember 07, 2025, 08:43:43 am | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| 0 Members and 31 Guests are viewing this board. | ||||
|
|
10 Replies
2923 Views |
January 07, 2017, 07:57:18 pmby silat |
|
|
|
26 Replies
14129 Views |
January 07, 2017, 12:45:15 pm by marcus262 |
|
|
|
|
Great service
Started by ernie_jr |
2 Replies
2182 Views |
January 07, 2017, 07:29:16 am by kagliostro |
|
|
|
Blown Fuse Troubleshooting
Started by Ambugaton |
31 Replies
7492 Views |
January 06, 2017, 10:27:43 pm by Ritchie200 |
|
|
|
Rivera Jake Studio Combo 55 watt amp
Started by punkykatt |
0 Replies
2351 Views |
January 06, 2017, 07:52:01 pm by punkykatt |
|
|
|
19 Replies
4850 Views |
January 06, 2017, 07:50:31 pm by 12AX7 |
|
|
|
|
cold bias gain stage?
Started by 12AX7 |
7 Replies
5157 Views |
January 06, 2017, 06:19:56 pm by 12AX7 |
|
|
|
Deluxe AB763 bias
Started by Leevi |
3 Replies
2120 Views |
January 06, 2017, 02:16:36 pm by Leevi |
|
|
|
D'Mars ODS build completed
Started by MakerDP |
21 Replies
7708 Views |
January 06, 2017, 12:08:42 pm by MakerDP |
|
|
50 Replies
11524 Views |
January 06, 2017, 07:48:19 am by Vdelli |
|
|
|
|
Building the Power Amp Section ONLY
Started by jonyoungyi |
6 Replies
2328 Views |
January 05, 2017, 04:22:09 pm by jonyoungyi |
|
|
|
Princeton reverb 120v USA to 240v UK
Started by kaborex |
2 Replies
2476 Views |
January 05, 2017, 12:35:25 pm by PRR |
|
|
|
tremolo circuit
Started by J Rindt |
9 Replies
4462 Views |
January 05, 2017, 11:14:02 am by kagliostro |
|
|
|
2 Replies
2073 Views |
January 05, 2017, 08:55:29 am by kagliostro |
|
|
|
|
Master Volume placement in a 5C5 Tweed Pro
Started by Josiah |
7 Replies
3152 Views |
January 04, 2017, 07:01:35 pm by Josiah |
|
|
|
6Sj7 to 6SL7 or the other way
Started by Ed_Chambley |
2 Replies
5128 Views |
January 04, 2017, 03:28:58 pm by Ed_Chambley |
|
|
|
What is the purpose of paralleled triodes?
Started by 12AX7 |
11 Replies
13467 Views |
January 04, 2017, 02:53:43 pm by Ed_Chambley |
|
|
|
"Doug Circuits" VOX AC4 Ver.3
Started by Attila |
5 Replies
16271 Views |
January 04, 2017, 01:32:52 pm by purpletele |
|
|
|
43 Replies
10643 Views |
January 03, 2017, 06:45:02 pm by warioblast |
|
|
|
|
power amp and diff preamps
Started by Colas LeGrippa |
2 Replies
1868 Views |
January 03, 2017, 05:19:58 pm by Colas LeGrippa |
|
|
|
Peavey MACE hiss problem
Started by Colas LeGrippa |
13 Replies
4381 Views |
January 03, 2017, 05:12:17 pm by Colas LeGrippa |
|
|
|
cold bias gain stage
Started by 12AX7 |
11 Replies
4104 Views |
January 02, 2017, 05:19:25 pm by 12AX7 |
|
|
|
8 Replies
2440 Views |
January 01, 2017, 08:48:46 pm by purpletele |
|
|
|
|
isolate or ground a reverb send jack?
Started by G._Hoffman |
3 Replies
2011 Views |
January 01, 2017, 07:14:33 pm by G._Hoffman |
|
|
|
Bias setting problem
Started by Leevi |
24 Replies
6192 Views |
January 01, 2017, 06:52:36 pm by whoops |
|
|
|
bias vs gain flatness
Started by PRR |
1 Replies
1720 Views |
January 01, 2017, 04:14:20 pm by PRR |
|
|
|
Old Accordion Tube Amp
Started by drumslinger2000 |
21 Replies
4676 Views |
January 01, 2017, 10:06:22 am by drumslinger2000 |
|
|
|
Biasing questions
Started by 12AX7 |
9 Replies
2819 Views |
December 31, 2016, 11:43:59 pm by PRR |
|
|
|
9 Replies
2951 Views |
December 31, 2016, 06:13:42 pm by guitarsan221 |
|
|
|
|
93 Replies
16618 Views |
December 31, 2016, 02:50:02 pm by Jaymz77 |
|
|
|
|
High gain preamp help
Started by dennyg |
6 Replies
2543 Views |
December 31, 2016, 02:41:52 pm by PRR |
|
|
|
McIntosh MC250
Started by p2pAmps |
15 Replies
7829 Views |
December 31, 2016, 10:12:46 am by p2pAmps |
|
|
|
Erratic Voltage Readings
Started by jaster55 |
1 Replies
1705 Views |
December 30, 2016, 10:31:53 pm by sluckey |
|
|
|
Revibe Build ala sluckey
Started by Blind Lemon |
30 Replies
6542 Views |
December 30, 2016, 07:18:48 pm by Blind Lemon |
|
|
|
Conjunctive filter info please?
Started by jojokeo |
46 Replies
25499 Views |
December 30, 2016, 06:01:56 pm by BetterOffShred |
|
|
|
4 Replies
3681 Views |
December 30, 2016, 02:35:15 pm by fiftynine |
|
|
|
|
6 Replies
2744 Views |
December 30, 2016, 12:12:41 pm by 3choplex |
|
|
|
|
15 Replies
4338 Views |
December 30, 2016, 11:12:05 am by hesamadman |
|
|
|
|
Sag Resistor
Started by Ambugaton |
5 Replies
5279 Views |
December 29, 2016, 09:07:29 pm by eleventeen |
|
|
|
4 Replies
2056 Views |
December 28, 2016, 10:07:46 pm by Planobilly |
|
|
|
|
Do you think....
Started by 12AX7 |
5 Replies
2271 Views |
December 28, 2016, 12:47:57 am by whoops |
|
|
|
6 Replies
3022 Views |
December 27, 2016, 04:18:39 pm by HotBluePlates |
|
|
|
|
3 Replies
1940 Views |
December 27, 2016, 04:05:36 pm by tubenit |
|
|
|
|
Sunn Model-T/200s Hybrid
Started by BetterOffShred |
20 Replies
7409 Views |
December 27, 2016, 12:11:31 pm by BetterOffShred |
|
|
|
smoking amp on standby
Started by jim |
13 Replies
3411 Views |
December 27, 2016, 12:06:32 pm by jim |
|
|
|
5 Replies
2154 Views |
December 26, 2016, 07:17:47 pm by HotBluePlates |
|
|
|
|
Amp output issue/question
Started by Redfishbum |
2 Replies
1810 Views |
December 26, 2016, 02:47:45 pm by Redfishbum |
|
|
|
5 Replies
2410 Views |
December 26, 2016, 11:15:58 am by Planobilly |
|
|
|
|
1 Replies
1902 Views |
December 26, 2016, 07:27:46 am by sluckey |
|
|
|
|
Diode rectifier for Tube...
Started by Oddvar |
4 Replies
2036 Views |
December 25, 2016, 02:31:07 pm by sluckey |
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 |