Welcome To the Hoffman Amplifiers Forum
January 24, 2026, 03:12:23 pm
Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 03:12:23 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| Glenn and 42 Guests are viewing this board. | ||||
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voltage doubler with 7591 tubes
Started by Tom_Hull |
23 Replies
9427 Views |
November 09, 2013, 08:13:58 amby Tom_Hull |
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Challenger CHB 35
Started by plexi50 |
12 Replies
8914 Views |
November 09, 2013, 06:50:04 am by jjasilli |
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13 Replies
6239 Views |
November 08, 2013, 10:15:01 pm by DummyLoad |
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Twin Reverb Filter cap board
Started by Guitarzan |
8 Replies
7559 Views |
November 08, 2013, 10:16:15 am by Guitarzan |
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unity gain?
Started by shooter |
8 Replies
3624 Views |
November 08, 2013, 09:34:39 am by sluckey |
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fender princeton 5f2-a trouble
Started by djsadowsk |
19 Replies
6294 Views |
November 07, 2013, 07:46:46 pm by djsadowsk |
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Diving into a vintage SVT
Started by nateflanigan |
24 Replies
9136 Views |
November 07, 2013, 02:40:04 pm by nateflanigan |
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Ways to get more voltage to V1?
Started by 12AX7 |
30 Replies
12070 Views |
November 07, 2013, 01:12:45 pm by Ed_Chambley |
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29 Replies
10019 Views |
November 07, 2013, 08:23:09 am by Ed_Chambley |
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Another Traynor YSR1
Started by plexi50 |
2 Replies
2940 Views |
November 06, 2013, 07:24:49 pm by plexi50 |
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"original" 18 watt on the bench
Started by Madison |
29 Replies
9742 Views |
November 05, 2013, 08:03:15 pm by Madison |
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8 Replies
3684 Views |
November 05, 2013, 06:33:01 pm by sluckey |
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Paraphase Tone Control
Started by RicharD |
22 Replies
8742 Views |
November 05, 2013, 05:56:54 pm by KeithR |
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Trem in nondescript Japanese amp
Started by AZJimC |
9 Replies
4556 Views |
November 05, 2013, 07:06:50 am by sluckey |
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9 Replies
5893 Views |
November 05, 2013, 01:34:53 am by kagliostro |
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5 Replies
4036 Views |
November 04, 2013, 06:36:13 pm by lego4040 |
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Amp power down question.
Started by alerich |
4 Replies
3384 Views |
November 04, 2013, 10:02:00 am by alerich |
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Impractical question
Started by shooter |
5 Replies
3413 Views |
November 02, 2013, 01:46:54 pm by sluckey |
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1964 Fender Deluxe
Started by Johns62312 |
21 Replies
7349 Views |
November 01, 2013, 07:01:59 am by Johns62312 |
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16 Replies
7351 Views |
November 01, 2013, 04:06:47 am by SoundmasterG |
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6V6GT plate voltage
Started by TIMBO |
13 Replies
11834 Views |
November 01, 2013, 12:55:06 am by TIMBO |
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3 Replies
3527 Views |
October 30, 2013, 02:43:10 pm by TubeGeek |
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Ampeg Heritage B-15 schematic
Started by dynaman1 |
10 Replies
7509 Views |
October 30, 2013, 02:37:03 pm by kagliostro |
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MIG 60 PT question - Schematic here
Started by kagliostro |
3 Replies
4472 Views |
October 30, 2013, 09:49:04 am by alerich |
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Hoffman AC30 voltage
Started by labb |
15 Replies
6505 Views |
October 30, 2013, 09:02:52 am by labb |
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Unused transformer leads
Started by macula56 |
8 Replies
4148 Views |
October 29, 2013, 02:16:24 pm by shoggoth |
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Ultra Rectifier Board
Started by macula56 |
11 Replies
5376 Views |
October 29, 2013, 01:18:16 pm by sluckey |
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28 Replies
27369 Views |
October 29, 2013, 02:32:42 am by tubeswell |
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Time for a Marshall plan
Started by bnwitt |
11 Replies
5262 Views |
October 28, 2013, 08:22:44 am by Ed_Chambley |
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crate blue voodoo 120 bias problem
Started by danger-russ |
10 Replies
11135 Views |
October 27, 2013, 08:03:45 pm by plexi50 |
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help with a Hoffman AC30
Started by JCleghorn1 |
15 Replies
5252 Views |
October 27, 2013, 06:29:42 pm by tubenit |
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Using Chassis as Ground?
Started by ioplex |
26 Replies
11120 Views |
October 27, 2013, 01:06:20 pm by Ghetto_Soundwave |
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14 Replies
5151 Views |
October 26, 2013, 03:07:28 pm by TIMBO |
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16 Replies
6151 Views |
October 26, 2013, 10:10:35 am by HotBluePlates |
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Sweet Hammond score
Started by Slimtim |
9 Replies
4280 Views |
October 25, 2013, 08:03:32 pm by Ritchie200 |
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3 Replies
3132 Views |
October 25, 2013, 02:28:07 pm by HotBluePlates |
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PT getting hot
Started by Ed_Chambley |
16 Replies
6460 Views |
October 25, 2013, 12:48:17 pm by DummyLoad |
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Do you think this would work
Started by Leevi |
29 Replies
7923 Views |
October 24, 2013, 09:12:01 am by Leevi |
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9 Replies
7302 Views |
October 24, 2013, 08:20:55 am by Jack1962 |
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Output tube(s) replacement
Started by LHPcope |
31 Replies
10386 Views |
October 24, 2013, 08:07:04 am by Jack1962 |
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MESA BOOGIE shit fan removal
Started by Colas LeGrippa |
18 Replies
9078 Views |
October 24, 2013, 08:02:11 am by stratele52 |
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12ax7 safe voltage
Started by Boone |
5 Replies
3302 Views |
October 24, 2013, 03:58:49 am by tubeswell |
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strange output transformers
Started by dscottguitars |
22 Replies
9675 Views |
October 22, 2013, 09:20:53 pm by dscottguitars |
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Silvertone 1484 reverb
Started by Tiny_Daddy |
13 Replies
11521 Views |
October 22, 2013, 02:33:37 pm by zarfnober |
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?s about the output of AC568 bassman
Started by nateflanigan |
2 Replies
4398 Views |
October 22, 2013, 06:25:33 am by nateflanigan |
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Power Chord Strain Relief w/ 16 AWG Cord?
Started by ioplex |
5 Replies
4885 Views |
October 21, 2013, 12:29:26 pm by ioplex |
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gain pot values
Started by 12AX7 |
4 Replies
9297 Views |
October 19, 2013, 03:55:43 pm by jojokeo |
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KT 66'S IN 67' BFSR
Started by muzacman02 |
4 Replies
3050 Views |
October 19, 2013, 10:46:11 am by HotBluePlates |
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AC30 build red plating, loud hum
Started by glassesnvests |
14 Replies
5789 Views |
October 19, 2013, 06:40:43 am by sluckey |
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5 Replies
2781 Views |
October 18, 2013, 10:12:34 pm by silverfox |
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