Welcome To the Hoffman Amplifiers Forum
April 25, 2026, 10:29:05 pm
Welcome To the Hoffman Amplifiers ForumApril 25, 2026, 10:29:05 pm | ||
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7 Replies
3244 Views |
November 30, 2022, 01:21:48 pmby fdesalvo |
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parallel input jack wiring
Started by BrainDeadAmps |
2 Replies
2781 Views |
November 30, 2022, 12:33:00 pm by BrainDeadAmps |
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16 Replies
5031 Views |
November 30, 2022, 11:58:57 am by BetterOffShred |
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AC10 Intensity in AC4? <<Solved>>
Started by dwinstonwood |
14 Replies
5396 Views |
November 30, 2022, 08:58:41 am by dwinstonwood |
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29 Replies
7438 Views |
November 29, 2022, 10:11:29 pm by JPK |
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Howling Feedback in Reveb Recovery
Started by jewishjay |
5 Replies
3402 Views |
November 29, 2022, 11:02:35 am by GroundhogKen |
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12 Replies
4975 Views |
November 29, 2022, 07:33:48 am by Williamblake |
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15 Replies
12877 Views |
November 27, 2022, 05:57:03 pm by kagliostro |
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Vox AC4 question. Need explanations.
Started by johngovan |
9 Replies
4538 Views |
November 27, 2022, 03:49:28 pm by kagliostro |
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10 Replies
4838 Views |
November 27, 2022, 04:59:22 am by fkitch |
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7 Replies
3926 Views |
November 26, 2022, 05:01:22 pm by PRR |
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2 Replies
3026 Views |
November 26, 2022, 10:42:19 am by acheld |
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9 Replies
4319 Views |
November 25, 2022, 05:29:03 pm by HotBluePlates |
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Steve Luckey November project
Started by isaac_teller |
3 Replies
2718 Views |
November 25, 2022, 02:45:17 pm by kagliostro |
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Any issues with this laylout
Started by dude |
12 Replies
4810 Views |
November 25, 2022, 02:23:50 pm by sluckey |
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15 Replies
7743 Views |
November 25, 2022, 09:19:39 am by kagliostro |
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16 Replies
5874 Views |
November 25, 2022, 02:07:04 am by Jennings |
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1M value for Treble pot.
Started by Mr.Death |
2 Replies
2831 Views |
November 24, 2022, 06:10:13 pm by Mr.Death |
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11 Replies
5318 Views |
November 24, 2022, 05:09:40 pm by tubeswell |
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Plate Resistor Type Question
Started by dragonbat13 |
3 Replies
3131 Views |
November 24, 2022, 05:05:17 pm by tubeswell |
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Coupling capacitors
Started by Mr.Death |
3 Replies
3059 Views |
November 24, 2022, 04:09:21 pm by PRR |
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Leslie 45cab/47 power amp
Started by Willabe |
9 Replies
6926 Views |
November 24, 2022, 03:38:45 pm by PRR |
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Hoffman Plexi 50 power supply
Started by Sergiouliana |
20 Replies
6543 Views |
November 24, 2022, 12:44:28 pm by pdf64 |
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Output Transformer calculation
Started by Williamblake |
2 Replies
3640 Views |
November 24, 2022, 10:32:06 am by Williamblake |
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Adding some bottom end to an AX84 High Octane
Started by JPK |
10 Replies
5545 Views |
November 24, 2022, 07:37:42 am by JPK |
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spongy feel in preamp
Started by 12AX7 |
21 Replies
6948 Views |
November 23, 2022, 09:57:55 pm by tubeswell |
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2 Replies
3120 Views |
November 23, 2022, 08:50:35 pm by MWaldorf |
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3 Replies
4353 Views |
November 23, 2022, 06:07:11 pm by sluckey |
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Bias question
Started by Mr.Death |
6 Replies
3431 Views |
November 22, 2022, 06:43:07 pm by Mr.Death |
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8 Replies
4192 Views |
November 22, 2022, 05:09:38 pm by sluckey |
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Grommet size applications
Started by Blooze |
11 Replies
5395 Views |
November 22, 2022, 05:00:47 pm by Blooze |
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1984 Mesa Mark II C+ Power Tube Diodes
Started by plexi50 |
25 Replies
7895 Views |
November 22, 2022, 02:41:57 pm by plexi50 |
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Hot and cold gain staging
Started by Mr.Death |
4 Replies
3461 Views |
November 22, 2022, 10:53:56 am by Mr.Death |
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35 Replies
11640 Views |
November 22, 2022, 04:37:18 am by DummyLoad |
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62 Replies
16913 Views |
November 21, 2022, 03:47:43 pm by JPK |
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2 Replies
3484 Views |
November 21, 2022, 12:46:07 pm by PRR |
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Philips 6411 PA tubeamp ground points
Started by kagliostro |
11 Replies
15011 Views |
November 21, 2022, 07:29:10 am by kjulhansen |
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choke question
Started by 12AX7 |
8 Replies
4020 Views |
November 20, 2022, 05:32:22 am by pdf64 |
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2 Replies
3270 Views |
November 19, 2022, 08:03:01 am by scottcurry13 |
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Danelectro Amp repair, low bass Ch2
Started by dmp |
22 Replies
7158 Views |
November 18, 2022, 10:40:03 pm by dmp |
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4 Replies
3931 Views |
November 18, 2022, 10:16:01 pm by J3ona1 |
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15 Replies
6027 Views |
November 18, 2022, 08:40:32 pm by PRR |
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Are these tubes useful for amps?
Started by rafe |
16 Replies
7377 Views |
November 18, 2022, 04:40:30 pm by scstill |
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Comparing bias trem circuits
Started by Esquirefreak |
5 Replies
4020 Views |
November 18, 2022, 03:22:18 pm by tubeswell |
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Fender PA-100 Refurb
Started by davidb |
8 Replies
4902 Views |
November 17, 2022, 10:23:06 pm by davidb |
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5 Replies
4147 Views |
November 17, 2022, 10:00:27 pm by sluckey |
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5e8 preamp question.
Started by johngovan |
6 Replies
4821 Views |
November 17, 2022, 09:46:30 pm by johngovan |
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Dual Triode Tube Testing, Curve Tracer
Started by W5FH |
2 Replies
3680 Views |
November 17, 2022, 03:59:06 pm by HotBluePlates |
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Vox AC10 and AC15 100R EL84 resistors
Started by Jalmeida |
9 Replies
6931 Views |
November 17, 2022, 03:42:58 pm by HotBluePlates |
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Mesa Bottle Rocket - Circuit ?s
Started by BrassElephant |
6 Replies
4388 Views |
November 17, 2022, 07:23:14 am by BrassElephant |
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