Welcome To the Hoffman Amplifiers Forum
December 08, 2025, 12:16:20 pm
Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 12:16:20 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| Williamblake and 90 Guests are viewing this board. | ||||
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Relay capability
Started by joesatch |
10 Replies
3502 Views |
October 21, 2022, 09:16:57 pmby JPK |
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AB763 DR Master Volume question
Started by Lectroid |
8 Replies
3293 Views |
October 21, 2022, 02:53:59 pm by Lectroid |
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Will this work for 5E3 channels?
Started by mini612 |
9 Replies
3211 Views |
October 21, 2022, 03:42:14 am by pdf64 |
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6A7 as a guitar preamp
Started by scstill |
4 Replies
2506 Views |
October 20, 2022, 09:39:43 pm by scstill |
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22 Replies
7445 Views |
October 20, 2022, 09:34:11 pm by scstill |
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6 Replies
3127 Views |
October 20, 2022, 02:55:30 pm by jordane |
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22 Replies
6047 Views |
October 20, 2022, 12:42:28 pm by dwinstonwood |
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40 Replies
8068 Views |
October 20, 2022, 09:01:16 am by sluckey |
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2 Replies
1988 Views |
October 19, 2022, 11:56:51 pm by 12AX7 |
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Single-Ended Push-Pull
Started by dwinstonwood |
2 Replies
2328 Views |
October 19, 2022, 06:01:03 pm by PRR |
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59 Replies
12926 Views |
October 18, 2022, 07:47:52 pm by mresistor |
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7 Replies
3126 Views |
October 18, 2022, 02:14:27 am by Balticnoiseforge |
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29 Replies
7104 Views |
October 17, 2022, 09:14:52 pm by gfarina55 |
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MOVED: 15" Speaker Recommendations
Started by Willabe |
0 Replies
1797 Views |
October 17, 2022, 04:25:08 pm by Willabe |
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5V4 with 6L6 in push pull
Started by jordan86 |
9 Replies
3874 Views |
October 17, 2022, 01:19:34 pm by shooter |
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Back-To-Back Power Transformers
Started by TIMBO |
8 Replies
3054 Views |
October 17, 2022, 11:59:12 am by Willabe |
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Tube Town 5a3?
Started by Ledvedder |
19 Replies
4492 Views |
October 17, 2022, 07:36:58 am by Bieworm |
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Oversized choke for vibroverb
Started by valvetones |
1 Replies
2284 Views |
October 17, 2022, 03:44:31 am by pdf64 |
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Technical Question about SE
Started by kagliostro |
10 Replies
3784 Views |
October 16, 2022, 04:30:27 pm by kagliostro |
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Burnt screen grid resistor, my mistake.
Started by Mr.Death |
4 Replies
2496 Views |
October 15, 2022, 02:29:59 pm by sluckey |
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Hoffmann 5F6A bias range
Started by Arry |
6 Replies
3185 Views |
October 15, 2022, 03:34:03 am by Arry |
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3 Replies
2731 Views |
October 14, 2022, 06:13:32 pm by jordan86 |
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3 Replies
2580 Views |
October 14, 2022, 05:04:38 pm by 66Strat |
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Acrosound Ultra Linear II
Started by Peter212 |
19 Replies
5739 Views |
October 14, 2022, 12:30:18 pm by Peter212 |
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9 Replies
3464 Views |
October 14, 2022, 08:56:23 am by Jennings |
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First amp build SW50R clone
Started by lamp |
7 Replies
3125 Views |
October 14, 2022, 05:23:01 am by lamp |
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11 Replies
4192 Views |
October 13, 2022, 05:50:12 pm by PRR |
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10 Replies
4291 Views |
October 12, 2022, 04:05:15 pm by DummyLoad |
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10 Replies
3670 Views |
October 12, 2022, 12:39:41 pm by spunko |
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Preamp filtering stage
Started by joesatch |
4 Replies
2538 Views |
October 11, 2022, 05:19:30 pm by shooter |
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‘81 JCM 800 build help
Started by etneccas |
14 Replies
4262 Views |
October 10, 2022, 05:53:33 pm by JPK |
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A250k solid shaft push/pull pot
Started by Esquirefreak |
3 Replies
2212 Views |
October 10, 2022, 04:57:23 pm by Esquirefreak |
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16 Replies
5444 Views |
October 10, 2022, 11:15:59 am by jordane |
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25 Replies
6422 Views |
October 10, 2022, 09:50:58 am by Eric-NC |
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EL84 Arcing Failure
Started by scstill |
10 Replies
5081 Views |
October 08, 2022, 11:40:10 pm by scstill |
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Refurbishing a Peavey Artist 240
Started by olliu |
6 Replies
4382 Views |
October 08, 2022, 03:37:59 pm by shooter |
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Input resistance measurements
Started by Mr.Death |
12 Replies
4017 Views |
October 08, 2022, 03:23:21 pm by pdf64 |
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22 Replies
5987 Views |
October 07, 2022, 11:19:50 pm by Willabe |
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Reverb drivers transformers
Started by Bieworm |
1 Replies
2248 Views |
October 07, 2022, 07:13:21 pm by thetragichero |
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28 Replies
5667 Views |
October 07, 2022, 04:07:25 pm by Williamblake |
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Which preamps?
Started by maltikeks |
12 Replies
3918 Views |
October 07, 2022, 04:00:36 pm by Williamblake |
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Where Does the Signal Go?
Started by clyde |
6 Replies
2665 Views |
October 06, 2022, 04:21:34 pm by pdf64 |
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12AT7 Single ended
Started by walkman |
7 Replies
3497 Views |
October 06, 2022, 11:58:48 am by PRR |
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Bias Voltage Issue
Started by imgumby001 |
10 Replies
3526 Views |
October 05, 2022, 12:55:44 pm by imgumby001 |
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5w amp scheme with reverb?
Started by rafaelctt |
45 Replies
10282 Views |
October 05, 2022, 11:57:32 am by rafaelctt |
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15 Replies
5151 Views |
October 05, 2022, 10:52:19 am by sluckey |
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5E3 with Pre and PI series heater wiring
Started by scstill |
1 Replies
2332 Views |
October 04, 2022, 06:11:05 pm by pdf64 |
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Tube Guitar Preamp with a Chip Amp
Started by dbishopbliss |
7 Replies
4296 Views |
October 04, 2022, 03:50:24 pm by dbishopbliss |
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Master volume on Musicmaster amp
Started by isaac_teller |
9 Replies
3856 Views |
October 03, 2022, 12:01:07 pm by PRR |
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My Vox Ac15 playing
Started by rafaelctt |
32 Replies
6534 Views |
October 03, 2022, 11:36:46 am by rafaelctt |
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