Welcome To the Hoffman Amplifiers Forum
April 27, 2026, 08:01:32 pm
Welcome To the Hoffman Amplifiers ForumApril 27, 2026, 08:01:32 pm | ||
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Trem-O-Drive Transformer Question
Started by blown240 |
4 Replies
5141 Views |
January 16, 2012, 11:39:07 pmby PRR |
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14 Replies
13203 Views |
January 16, 2012, 05:56:37 pm by HotBluePlates |
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2 channel amp - Switching help!
Started by liagasg |
31 Replies
17132 Views |
January 16, 2012, 12:45:52 pm by liagasg |
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silvertone 1484 tremelo issue
Started by Steve S. |
3 Replies
4348 Views |
January 16, 2012, 12:11:33 pm by Steve S. |
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7 Replies
6759 Views |
January 16, 2012, 11:43:00 am by PRR |
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1975 Twin Reverb in for Repairs
Started by Platefire |
39 Replies
18275 Views |
January 16, 2012, 09:21:29 am by Willabe |
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Knobs for a Supro 1624
Started by LooseChange |
10 Replies
6735 Views |
January 16, 2012, 05:55:10 am by LooseChange |
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Single channel AB763 question?
Started by tdvt |
7 Replies
5798 Views |
January 15, 2012, 08:03:42 am by sluckey |
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help with old radio????
Started by zapped |
11 Replies
6367 Views |
January 14, 2012, 10:54:11 pm by PRR |
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1939 guitar amp
Started by PRR |
29 Replies
13373 Views |
January 14, 2012, 11:23:30 am by tubeswell |
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??? Amp Model
Started by plexi50 |
15 Replies
9381 Views |
January 13, 2012, 11:45:42 pm by bigsbybender |
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Built A Sch 40 GA-5 Today
Started by shortfuse |
23 Replies
9268 Views |
January 13, 2012, 10:39:19 pm by shortfuse |
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rectifier heater question
Started by bnew63 |
2 Replies
3622 Views |
January 13, 2012, 06:46:01 pm by bnew63 |
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5 Replies
5224 Views |
January 13, 2012, 06:45:23 pm by Willabe |
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7591 conversion to 6V6
Started by oldhippy |
25 Replies
24815 Views |
January 13, 2012, 04:10:41 pm by oldhippy |
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Alamo Electra 2570 Need a little help
Started by dude |
1 Replies
6946 Views |
January 13, 2012, 01:56:52 pm by dude |
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question regarding modifying pot value
Started by 12AX7 |
5 Replies
6566 Views |
January 13, 2012, 12:11:05 am by PRR |
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Verlage Amplifier troubles
Started by TubeGeek |
4 Replies
5618 Views |
January 12, 2012, 11:30:53 pm by PRR |
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triode / pentode
Started by Colas LeGrippa |
32 Replies
34239 Views |
January 12, 2012, 05:44:35 pm by HotBluePlates |
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7 Replies
5903 Views |
January 12, 2012, 08:57:13 am by kagliostro |
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choke help
Started by ernie_jr |
7 Replies
5270 Views |
January 11, 2012, 09:14:25 pm by HotBluePlates |
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negative feedback question
Started by navdave |
9 Replies
6577 Views |
January 11, 2012, 08:35:26 pm by printer2 |
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NTE558 diode
Started by schoolie |
4 Replies
3740 Views |
January 11, 2012, 07:00:52 pm by schoolie |
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HEADPHONE tube amp
Started by Colas LeGrippa |
13 Replies
8716 Views |
January 11, 2012, 06:08:16 pm by Colas LeGrippa |
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Inpedance Mismatch Question
Started by blown240 |
14 Replies
7341 Views |
January 11, 2012, 02:59:49 pm by jojokeo |
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Heater supply question
Started by John |
2 Replies
3336 Views |
January 11, 2012, 12:37:10 pm by John |
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5 Replies
5996 Views |
January 11, 2012, 09:07:13 am by kagliostro |
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Master Volume On 100 Watt SF Twin
Started by plexi50 |
6 Replies
4493 Views |
January 10, 2012, 03:15:57 pm by chuggy |
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internal connection
Started by jeff |
20 Replies
9283 Views |
January 10, 2012, 11:21:19 am by tonewood |
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OPT questions
Started by bnew63 |
6 Replies
4939 Views |
January 09, 2012, 03:10:14 pm by PRR |
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vintage diodes
Started by embotone |
2 Replies
3465 Views |
January 09, 2012, 03:00:58 pm by PRR |
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Question about Hoffman 5f6a bias circuit
Started by schoolie |
22 Replies
9642 Views |
January 09, 2012, 02:57:26 pm by Ed_Chambley |
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Rating of pots as variable resistors
Started by jeff |
5 Replies
3868 Views |
January 09, 2012, 02:46:25 pm by PRR |
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1 Replies
4323 Views |
January 09, 2012, 12:42:06 pm by topbrent |
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Hot Rod deluxe problem
Started by LooseChange |
3 Replies
3543 Views |
January 09, 2012, 10:43:24 am by birt |
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9 Replies
5300 Views |
January 08, 2012, 04:00:03 pm by jeff |
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12AX7's enhance cap question
Started by bluesbear |
6 Replies
4679 Views |
January 08, 2012, 09:08:41 am by tubenit |
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Just build Deluxe Reverb
Started by kwm488 |
7 Replies
5389 Views |
January 08, 2012, 08:50:33 am by birt |
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36 Replies
22866 Views |
January 07, 2012, 07:10:29 pm by Platefire |
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New Cap Tweak
Started by tubenit |
0 Replies
3513 Views |
January 07, 2012, 06:19:54 pm by tubenit |
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Treble bleed cap value calculation?
Started by 12AX7 |
1 Replies
6059 Views |
January 07, 2012, 05:57:28 pm by PRR |
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grid stopper vs voltage divider
Started by 12AX7 |
3 Replies
7405 Views |
January 06, 2012, 07:44:00 pm by HotBluePlates |
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2 Replies
3871 Views |
January 06, 2012, 12:07:05 pm by SleepLess |
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amplifier power calculation
Started by Colas LeGrippa |
10 Replies
16087 Views |
January 06, 2012, 11:18:31 am by jjasilli |
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brand new (mostly)
Started by Jamesbarner |
5 Replies
4078 Views |
January 05, 2012, 10:48:06 pm by TIMBO |
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vibrato circuit wanted !
Started by Colas LeGrippa |
6 Replies
3945 Views |
January 05, 2012, 11:52:48 am by panhead |
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8 Replies
5585 Views |
January 05, 2012, 11:51:28 am by kagliostro |
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11 Replies
6083 Views |
January 05, 2012, 07:49:43 am by sluckey |
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PPMIV In 5f6a Switchable
Started by Ed_Chambley |
23 Replies
10079 Views |
January 04, 2012, 03:47:49 pm by Ed_Chambley |
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VVR installation
Started by Colas LeGrippa |
7 Replies
5244 Views |
January 04, 2012, 08:37:35 am by Colas LeGrippa |
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