Welcome To the Hoffman Amplifiers Forum
April 26, 2026, 11:06:35 am
Welcome To the Hoffman Amplifiers ForumApril 26, 2026, 11:06:35 am | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 19 Guests are viewing this board. | ||||
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power rail resistors
Started by ernie_jr |
2 Replies
3145 Views |
May 29, 2019, 06:31:51 amby ernie_jr |
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Bias measurement with bypass caps
Started by kenny1547 |
2 Replies
3260 Views |
May 28, 2019, 02:12:17 am by kenny1547 |
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8 Replies
4892 Views |
May 27, 2019, 11:46:31 pm by purpletele |
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Choke size
Started by daveyajd |
10 Replies
4946 Views |
May 27, 2019, 08:40:39 pm by vampwizzard |
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10 Replies
4866 Views |
May 27, 2019, 02:51:21 pm by TubeJunkie |
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4 Replies
3815 Views |
May 27, 2019, 12:00:44 pm by sluckey |
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Ever seen these before?
Started by Oddvar |
1 Replies
3522 Views |
May 27, 2019, 11:04:44 am by dude |
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IM freaking out please help
Started by scaredashell |
18 Replies
6364 Views |
May 27, 2019, 10:37:33 am by Joel in Texas |
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Rivera Era Fender Input Jack Question
Started by plumcrazyfx |
3 Replies
3701 Views |
May 27, 2019, 08:07:31 am by sluckey |
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7 Replies
6370 Views |
May 25, 2019, 10:33:34 pm by vampwizzard |
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Volume
Started by davidwpack « 1 2 » |
55 Replies
14277 Views |
May 25, 2019, 04:48:58 pm by shooter |
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8 Replies
5683 Views |
May 25, 2019, 07:10:56 am by Sonny ReVerb |
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10 Replies
7697 Views |
May 24, 2019, 02:18:53 am by bigdaddydiesel |
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strange 5C1 preamp characteristics
Started by SHaD0ST31N |
3 Replies
3758 Views |
May 23, 2019, 07:31:25 pm by SHaD0ST31N |
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1961 6G6A .25uf Astrons are done!
Started by Opry Audio |
2 Replies
3044 Views |
May 23, 2019, 04:25:56 pm by Opry Audio |
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2 Replies
3420 Views |
May 23, 2019, 03:26:18 pm by jjasilli |
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63 Replies
21936 Views |
May 23, 2019, 05:43:13 am by tubenit |
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7 Replies
6331 Views |
May 23, 2019, 12:28:35 am by purpletele |
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Bell Sound 2215
Started by Eulipian |
9 Replies
4728 Views |
May 22, 2019, 05:05:28 pm by Eulipian |
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bias of preamp tubes with a pot
Started by ALBATROS1234 |
6 Replies
4263 Views |
May 22, 2019, 04:37:26 pm by ALBATROS1234 |
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4 Replies
4733 Views |
May 21, 2019, 08:18:27 pm by PRR |
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Amp Going Into Cut-Off?
Started by mwelch55 |
6 Replies
4342 Views |
May 21, 2019, 08:15:30 pm by PRR |
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DIY Marantz 7 Motorboating
Started by Ed_Chambley |
4 Replies
6154 Views |
May 21, 2019, 08:09:54 pm by PRR |
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94 Replies
26507 Views |
May 21, 2019, 07:50:50 pm by Jaymz77 |
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Conn Minuet 531 conversion
Started by jmccanna |
0 Replies
3180 Views |
May 21, 2019, 12:23:54 pm by jmccanna |
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10 Replies
6384 Views |
May 20, 2019, 07:58:24 pm by jjasilli |
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Looking for feedback on my design please?
Started by Amped |
27 Replies
10019 Views |
May 20, 2019, 05:32:59 pm by shooter |
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12 Replies
5070 Views |
May 20, 2019, 11:12:47 am by dude |
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5 Replies
5205 Views |
May 20, 2019, 09:48:05 am by pdf64 |
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Relay Board Turret Install Tip
Started by NSB_Chris |
0 Replies
3544 Views |
May 19, 2019, 08:07:36 pm by NSB_Chris |
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12 Replies
7425 Views |
May 18, 2019, 04:11:29 am by DummyLoad |
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Wire gauge and some more
Started by Oddvar |
1 Replies
3182 Views |
May 17, 2019, 05:44:49 am by sluckey |
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12 Replies
7880 Views |
May 16, 2019, 05:53:40 pm by Shack |
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14 Replies
8399 Views |
May 16, 2019, 10:29:17 am by BobL |
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Another 2204 Build
Started by Bjorn |
14 Replies
7420 Views |
May 16, 2019, 08:33:20 am by nandrewjackson |
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12A Input jack install
Started by Tbone55 |
17 Replies
11786 Views |
May 15, 2019, 04:57:55 pm by Tbone55 |
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Dead Channel: 1960 5G5 Pro Amp
Started by centervolume |
4 Replies
3830 Views |
May 15, 2019, 03:22:41 pm by centervolume |
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145 Replies
49066 Views |
May 14, 2019, 08:20:21 pm by shooter |
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Need help with repair
Started by Bogeytomd |
16 Replies
6015 Views |
May 14, 2019, 07:03:39 pm by shooter |
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Lowest wattage PP pentode power amp
Started by Heph333 |
11 Replies
8587 Views |
May 13, 2019, 01:45:05 pm by kagliostro |
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Finding OT impedance
Started by dude |
18 Replies
10755 Views |
May 13, 2019, 12:11:48 pm by ALBATROS1234 |
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Wierd Fender Champ II issue
Started by reggiepe |
5 Replies
4327 Views |
May 13, 2019, 12:46:51 am by st |
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Need to add a Line Out
Started by Joe6v6 |
6 Replies
4526 Views |
May 12, 2019, 04:59:40 pm by 2deaf |
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1 Replies
3301 Views |
May 12, 2019, 03:24:29 pm by PRR |
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JCM800 / Plexi clone idea
Started by walkman |
1 Replies
3151 Views |
May 12, 2019, 09:51:18 am by tubenit |
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DoubleCavers5.3
Started by shooter |
26 Replies
10439 Views |
May 11, 2019, 07:08:50 pm by shooter |
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What fuse in Bandmaster 230v?
Started by Oddvar |
4 Replies
3548 Views |
May 11, 2019, 01:57:53 pm by pdf64 |
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Fender dating
Started by shooter |
8 Replies
4996 Views |
May 11, 2019, 11:16:57 am by shooter |
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Vibro Champ Issues
Started by TurboGuitarMelton |
8 Replies
6378 Views |
May 10, 2019, 08:42:03 am by jjasilli |
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9 Replies
6786 Views |
May 09, 2019, 05:53:09 pm by silverfox |
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Yard Sale Discontinued |
Misc. Hardware |
| What's New |
Board Building Parts |
Amp trim Handles |
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Lamps Diodes |
Hoffman Turret Boards |
Channel Switching |
| Resistors |
Fender Eyelet Boards |
Screws/Nuts Washers |
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Jacks/Plugs Connectors |
Misc Eyelet Boards |
Tools |
| Capacitors |
Custom Boards |
Tubes Valves |
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Pots Knobs |
Fuses/Cords |
Chassis |
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Tube Sockets |
Switches |
Wire Cable |