Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 11:26:12 am
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 11:26:12 am | ||
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Can an amp's tone curve be tweaked
Started by pbman1953 |
3 Replies
4117 Views |
November 14, 2013, 02:12:49 pmby pbman1953 |
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balancing a LTPI ?
Started by 12AX7 |
14 Replies
10851 Views |
November 14, 2013, 12:15:34 pm by 12AX7 |
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DPST standby switch
Started by Boone |
23 Replies
11532 Views |
November 14, 2013, 11:41:19 am by stratele52 |
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7025s for a Brown Vibrasonic
Started by Voxbox |
6 Replies
5154 Views |
November 14, 2013, 08:31:39 am by Tom_Hull |
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adding dwell to a princeton reverb
Started by lego4040 |
4 Replies
5715 Views |
November 13, 2013, 08:41:24 pm by lego4040 |
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Oahu Amp? Tube Arraingement
Started by plexi50 |
20 Replies
8689 Views |
November 13, 2013, 07:21:20 pm by plexi50 |
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1967 Pro reverb bias problem
Started by Michael1 |
31 Replies
13384 Views |
November 12, 2013, 01:28:54 pm by Michael1 |
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Tube Doctor 5E3 Build
Started by mayburyds |
44 Replies
15470 Views |
November 12, 2013, 10:47:43 am by mayburyds |
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9 Replies
7120 Views |
November 11, 2013, 06:22:04 pm by sluckey |
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6 Replies
5251 Views |
November 11, 2013, 02:58:16 pm by Ed_Chambley |
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7 Replies
9875 Views |
November 11, 2013, 11:59:19 am by jojokeo |
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Anybody recognize this tranny?
Started by eleventeen |
4 Replies
4438 Views |
November 11, 2013, 11:23:13 am by mat janssen |
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foot switch jack
Started by Bugman3183 |
5 Replies
4330 Views |
November 11, 2013, 10:31:05 am by Bugman3183 |
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5E9-A rectifier ?
Started by SLW |
15 Replies
9798 Views |
November 10, 2013, 08:35:00 am by SLW |
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Seafoam green princeton reverb clone
Started by TubeGeek |
30 Replies
11866 Views |
November 09, 2013, 03:19:24 pm by TubeGeek |
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El84 snubber - Anyone try this?
Started by jjasilli |
22 Replies
17220 Views |
November 09, 2013, 10:08:30 am by jojokeo |
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Chassis heat and fans - Part II
Started by alerich |
5 Replies
5631 Views |
November 09, 2013, 09:28:12 am by jojokeo |
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voltage doubler with 7591 tubes
Started by Tom_Hull |
23 Replies
12046 Views |
November 09, 2013, 08:13:58 am by Tom_Hull |
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Challenger CHB 35
Started by plexi50 |
12 Replies
10793 Views |
November 09, 2013, 06:50:04 am by jjasilli |
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13 Replies
8173 Views |
November 08, 2013, 10:15:01 pm by DummyLoad |
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Twin Reverb Filter cap board
Started by Guitarzan |
8 Replies
9602 Views |
November 08, 2013, 10:16:15 am by Guitarzan |
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unity gain?
Started by shooter |
8 Replies
5094 Views |
November 08, 2013, 09:34:39 am by sluckey |
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fender princeton 5f2-a trouble
Started by djsadowsk |
19 Replies
8294 Views |
November 07, 2013, 07:46:46 pm by djsadowsk |
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Diving into a vintage SVT
Started by nateflanigan |
24 Replies
11581 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
15491 Views |
November 07, 2013, 01:12:45 pm by Ed_Chambley |
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29 Replies
12694 Views |
November 07, 2013, 08:23:09 am by Ed_Chambley |
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Another Traynor YSR1
Started by plexi50 |
2 Replies
4600 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
12550 Views |
November 05, 2013, 08:03:15 pm by Madison |
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8 Replies
5193 Views |
November 05, 2013, 06:33:01 pm by sluckey |
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Paraphase Tone Control
Started by RicharD |
22 Replies
11028 Views |
November 05, 2013, 05:56:54 pm by KeithR |
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Trem in nondescript Japanese amp
Started by AZJimC |
9 Replies
6231 Views |
November 05, 2013, 07:06:50 am by sluckey |
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9 Replies
7776 Views |
November 05, 2013, 01:34:53 am by kagliostro |
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5 Replies
5621 Views |
November 04, 2013, 06:36:13 pm by lego4040 |
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Amp power down question.
Started by alerich |
4 Replies
5001 Views |
November 04, 2013, 10:02:00 am by alerich |
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Impractical question
Started by shooter |
5 Replies
4844 Views |
November 02, 2013, 01:46:54 pm by sluckey |
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1964 Fender Deluxe
Started by Johns62312 |
21 Replies
10320 Views |
November 01, 2013, 07:01:59 am by Johns62312 |
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16 Replies
9558 Views |
November 01, 2013, 04:06:47 am by SoundmasterG |
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6V6GT plate voltage
Started by TIMBO |
13 Replies
14507 Views |
November 01, 2013, 12:55:06 am by TIMBO |
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3 Replies
4900 Views |
October 30, 2013, 02:43:10 pm by TubeGeek |
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Ampeg Heritage B-15 schematic
Started by dynaman1 |
10 Replies
9218 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
5806 Views |
October 30, 2013, 09:49:04 am by alerich |
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Hoffman AC30 voltage
Started by labb |
15 Replies
8445 Views |
October 30, 2013, 09:02:52 am by labb |
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Unused transformer leads
Started by macula56 |
8 Replies
5366 Views |
October 29, 2013, 02:16:24 pm by shoggoth |
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Ultra Rectifier Board
Started by macula56 |
11 Replies
7069 Views |
October 29, 2013, 01:18:16 pm by sluckey |
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28 Replies
31799 Views |
October 29, 2013, 02:32:42 am by tubeswell |
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Time for a Marshall plan
Started by bnwitt |
11 Replies
6688 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
13031 Views |
October 27, 2013, 08:03:45 pm by plexi50 |
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help with a Hoffman AC30
Started by JCleghorn1 |
15 Replies
6761 Views |
October 27, 2013, 06:29:42 pm by tubenit |
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Using Chassis as Ground?
Started by ioplex |
26 Replies
14177 Views |
October 27, 2013, 01:06:20 pm by Ghetto_Soundwave |
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14 Replies
6881 Views |
October 26, 2013, 03:07:28 pm by TIMBO |
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