Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 07:34:34 pm
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 07:34:34 pm | ||
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15BD11A....
Started by TIMBO |
38 Replies
12935 Views |
November 07, 2022, 04:10:26 amby shooter |
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why the huge difference in R values?
Started by 12AX7 |
17 Replies
9474 Views |
November 06, 2022, 09:56:56 pm by 12AX7 |
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80 Replies
25798 Views |
November 06, 2022, 09:49:45 pm by Ledvedder |
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question about plate voltage to V1
Started by joesatch |
9 Replies
6048 Views |
November 05, 2022, 06:51:27 pm by HotBluePlates |
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2 Replies
3906 Views |
November 05, 2022, 04:42:57 pm by HotBluePlates |
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8 Replies
6315 Views |
November 05, 2022, 12:36:18 pm by DummyLoad |
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21 Replies
13834 Views |
November 05, 2022, 10:33:00 am by W5FH |
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6 Replies
5411 Views |
November 05, 2022, 10:20:35 am by joesatch |
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5e3 - alternate speaker jack wiring?
Started by Ledvedder |
1 Replies
3984 Views |
November 04, 2022, 11:19:37 am by pdf64 |
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5 Replies
5569 Views |
November 03, 2022, 05:42:41 pm by Carlsoti |
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Power Transformer Recommendation - 2x6550
Started by W5FH |
3 Replies
4599 Views |
November 03, 2022, 10:59:28 am by W5FH |
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hammond 372BX connections
Started by rafaelctt |
7 Replies
6325 Views |
November 03, 2022, 10:53:42 am by rafaelctt |
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Switchcraft vs. Cliff 1/4" Jacks
Started by DuaneOh |
3 Replies
6230 Views |
November 02, 2022, 06:20:48 pm by acheld |
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6j6 LTP experiment
Started by BrainDeadAmps |
4 Replies
5693 Views |
November 01, 2022, 06:53:18 pm by BrainDeadAmps |
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22 Replies
18667 Views |
November 01, 2022, 12:38:43 am by PRR |
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Behavior of 807 power tubes
Started by Leevi |
1 Replies
3985 Views |
November 01, 2022, 12:34:47 am by PRR |
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6BM8 triode plate resistor Q
Started by tubenit |
8 Replies
6013 Views |
October 31, 2022, 12:03:05 pm by PRR |
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4 Replies
4780 Views |
October 31, 2022, 09:26:00 am by JPK |
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5F1 Build Thumping Problem?
Started by oogabooga23 |
11 Replies
5921 Views |
October 30, 2022, 08:23:05 pm by oogabooga23 |
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Ampeg B-15-NF question
Started by mresistor |
5 Replies
5415 Views |
October 30, 2022, 06:48:55 pm by mresistor |
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How to Wire Unused Triodes
Started by Thisismyname |
5 Replies
5310 Views |
October 30, 2022, 11:48:53 am by sluckey |
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3 Replies
5336 Views |
October 30, 2022, 05:35:20 am by pdf64 |
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Vox or Lightning Preamp
Started by johngovan |
4 Replies
4626 Views |
October 29, 2022, 10:01:16 am by jordan86 |
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Tonestack switching confusion
Started by Zenabi |
14 Replies
7358 Views |
October 29, 2022, 10:00:45 am by Zenabi |
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16 Replies
8059 Views |
October 29, 2022, 12:09:47 am by jordan86 |
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9 Replies
7793 Views |
October 28, 2022, 03:21:54 pm by Willabe |
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Artificial center tap for my 5e3 build
Started by Ledvedder |
2 Replies
4983 Views |
October 28, 2022, 07:03:26 am by Ledvedder |
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5 Replies
6199 Views |
October 27, 2022, 09:36:18 pm by PRR |
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HiWatt DR-103 Phase Inverter
Started by W5FH |
3 Replies
6352 Views |
October 26, 2022, 09:19:35 pm by W5FH |
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Reverb problem Sound X-305R
Started by jamesedmunda |
0 Replies
3990 Views |
October 26, 2022, 05:31:27 pm by jamesedmunda |
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Good 5e3 build instructions?
Started by Ledvedder |
3 Replies
5154 Views |
October 26, 2022, 12:41:00 pm by sluckey |
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St George Massie 1263 Scratchy Sound
Started by oogabooga23 |
13 Replies
6434 Views |
October 26, 2022, 12:39:24 pm by oogabooga23 |
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Circuit question
Started by joesatch |
1 Replies
4290 Views |
October 26, 2022, 09:40:44 am by sluckey |
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55 Replies
23679 Views |
October 26, 2022, 08:29:21 am by Ledvedder |
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Help! Adding a choke to Maggie
Started by johngovan |
2 Replies
5760 Views |
October 25, 2022, 05:45:37 pm by johngovan |
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SS rectifier snubber networks
Started by Esquirefreak |
18 Replies
8337 Views |
October 25, 2022, 03:45:58 pm by Esquirefreak |
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unusual results from bright cap
Started by joesatch |
4 Replies
4689 Views |
October 25, 2022, 10:50:22 am by joesatch |
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Is this a ceramic?
Started by 12AX7 |
18 Replies
7360 Views |
October 25, 2022, 10:46:38 am by acheld |
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JCM 800 Series 50 Watt Bass Amp
Started by W5FH |
4 Replies
5378 Views |
October 25, 2022, 10:13:56 am by pdf64 |
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Mullard 6BM8
Started by rafe |
6 Replies
4850 Views |
October 25, 2022, 06:27:45 am by kde |
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Magnatone Panaramic Amplifier
Started by dmp |
11 Replies
6215 Views |
October 24, 2022, 09:28:28 am by dmp |
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18 Replies
6529 Views |
October 24, 2022, 07:56:14 am by dwinstonwood |
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6SK7 as a driver for a 6L6 SE AMP
Started by Jerry garrcia |
16 Replies
9971 Views |
October 23, 2022, 05:22:58 pm by Jerry garrcia |
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Rectifier Tube Chart/Cross Reference II
Started by Lectroid |
1 Replies
3905 Views |
October 23, 2022, 04:48:13 pm by bmccowan |
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Bartel Interstage Transformer Circuit
Started by W5FH |
27 Replies
11858 Views |
October 23, 2022, 08:06:25 am by W5FH |
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Princeton Reverb AA764 conductive board?
Started by Willabe |
17 Replies
7761 Views |
October 23, 2022, 06:58:06 am by Esquirefreak |
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4 Replies
4920 Views |
October 22, 2022, 08:27:04 pm by joesatch |
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Vox AC15HW1X Mods
Started by bnwitt |
2 Replies
4715 Views |
October 22, 2022, 07:22:15 pm by bnwitt |
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Low Watt High Gain Project Question
Started by imgumby001 |
4 Replies
4465 Views |
October 22, 2022, 06:16:10 pm by jordan86 |
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12 Replies
7611 Views |
October 22, 2022, 04:01:34 pm by SourCream23 |
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