Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 04:59:29 pm
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 04:59:29 pm | ||
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5F1 No Sound Problem-It just quit!
Started by wsscott |
26 Replies
11513 Views |
March 04, 2021, 04:52:01 pmby wsscott |
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Randall RM-100 Impedance switch
Started by JustMike |
3 Replies
4891 Views |
March 04, 2021, 12:31:37 pm by EL34 |
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1 Replies
4557 Views |
March 04, 2021, 10:14:41 am by PharmRock |
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14 Replies
8575 Views |
March 04, 2021, 03:08:47 am by Latole |
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Where to ground the first filter stage.
Started by Mike_J |
23 Replies
9892 Views |
March 03, 2021, 09:02:18 pm by tubeswell |
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Choosing Power Transformers
Started by acheld |
7 Replies
6165 Views |
March 03, 2021, 08:17:04 pm by acheld |
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0 Replies
4290 Views |
March 03, 2021, 05:54:41 pm by Mike_J |
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1977 Princeton Reverb PT failure?
Started by wsscott |
23 Replies
8108 Views |
March 03, 2021, 05:13:41 pm by wsscott |
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6 Replies
5169 Views |
March 03, 2021, 03:01:40 pm by Mike_J |
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New most terrible job ever.
Started by Mike_J |
9 Replies
6059 Views |
March 03, 2021, 06:12:20 am by Mike_J |
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14 Replies
5728 Views |
March 03, 2021, 12:47:11 am by d95err |
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Post PI Master Volume Coupling Cap
Started by scstill |
2 Replies
3727 Views |
March 02, 2021, 04:06:49 pm by thetragichero |
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B&H Filmosound 626 amp
Started by Zonnebloem |
2 Replies
4021 Views |
March 02, 2021, 03:56:08 pm by Zonnebloem |
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2 Cathode Followers on the same tube?
Started by dsmith9 |
5 Replies
4409 Views |
March 02, 2021, 03:03:30 pm by tubeswell |
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Reverb pedal jack
Started by dude |
6 Replies
5773 Views |
March 02, 2021, 01:08:39 pm by sluckey |
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Doug's shielded wire
Started by munkeyboy |
13 Replies
8465 Views |
March 02, 2021, 09:30:21 am by EL34 |
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67 Replies
24297 Views |
March 01, 2021, 09:48:28 pm by wittyjeff |
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4 Replies
4247 Views |
March 01, 2021, 09:00:31 pm by walkman |
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14 Replies
9016 Views |
March 01, 2021, 03:25:28 pm by gitarzysta |
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2 Replies
5514 Views |
March 01, 2021, 03:10:16 pm by sluckey |
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New Amp Introduction—Brown Junior
Started by brewdude |
7 Replies
4418 Views |
February 28, 2021, 09:17:05 pm by wittyjeff |
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Global Negitive Feedback with Top Cut?
Started by DuaneOh |
6 Replies
5261 Views |
February 28, 2021, 09:14:02 pm by wittyjeff |
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6K6GT push pull limits
Started by brewdude |
17 Replies
7954 Views |
February 28, 2021, 06:24:30 pm by brewdude |
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Plastic Toroidal Xfmr mount?
Started by JustMike |
1 Replies
3582 Views |
February 28, 2021, 01:42:36 pm by thetragichero |
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Need help.
Started by Mike_J |
8 Replies
4414 Views |
February 27, 2021, 11:56:36 pm by glass54 |
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How to test/repair speaker?
Started by BobL |
8 Replies
5397 Views |
February 27, 2021, 08:46:42 pm by acheld |
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Filament wiring gauge
Started by Graydigger |
37 Replies
15804 Views |
February 27, 2021, 06:23:55 pm by scstill |
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6 Replies
5405 Views |
February 27, 2021, 06:17:03 pm by tubeswell |
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Suppliers (as of 2021)
Started by munkeyboy |
24 Replies
18704 Views |
February 27, 2021, 02:55:12 pm by vampwizzard |
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14 Replies
8040 Views |
February 27, 2021, 12:50:09 pm by BobL |
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Tagboard question
Started by dude |
11 Replies
5516 Views |
February 27, 2021, 11:28:35 am by dude |
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UA OX catching amp on fire
Started by British1011 |
5 Replies
5146 Views |
February 27, 2021, 09:57:59 am by British1011 |
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Planning my next build (simplified AC15ish)
Started by aon |
12 Replies
6040 Views |
February 27, 2021, 07:38:20 am by aon |
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line out for single ended tube amp
Started by mazzgreg |
2 Replies
3942 Views |
February 26, 2021, 03:22:47 pm by PRR |
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Confused again.
Started by Mike_J |
19 Replies
8629 Views |
February 26, 2021, 10:12:47 am by Mike_J |
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Negative Feedback, Where To Get It From?
Started by DuaneOh |
8 Replies
6887 Views |
February 25, 2021, 06:23:15 pm by DuaneOh |
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Ampeg B 12 XT
Started by Big chief |
8 Replies
5465 Views |
February 25, 2021, 03:37:51 pm by Big chief |
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1959 Supro Coronado 1690T on the bench
Started by TubeGeek |
16 Replies
12884 Views |
February 25, 2021, 12:36:19 pm by PRR |
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Cranked Amp "Chirping"?
Started by jordan86 |
4 Replies
5626 Views |
February 25, 2021, 10:02:59 am by SILVERGUN |
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Spicemodel for reverb tanks
Started by PRR |
0 Replies
4908 Views |
February 24, 2021, 10:08:43 pm by PRR |
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Screen and Plate Switch pop in AC15 build
Started by shaun |
12 Replies
6620 Views |
February 24, 2021, 07:01:55 pm by HotBluePlates |
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How long do Edcor transformers take?
Started by steveo7868 |
11 Replies
5980 Views |
February 24, 2021, 06:36:07 pm by munkeyboy |
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7 Replies
5087 Views |
February 24, 2021, 05:26:52 pm by tomof63 |
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1 Replies
3849 Views |
February 24, 2021, 10:59:30 am by thetragichero |
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1 Replies
4845 Views |
February 24, 2021, 08:18:12 am by sluckey |
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Incoming Amp-PRS 25th Anniversary
Started by JustMike |
10 Replies
6573 Views |
February 23, 2021, 01:40:56 pm by shooter |
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switching channels with relays questions
Started by Bieworm |
5 Replies
4949 Views |
February 23, 2021, 01:39:23 pm by Bieworm |
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20 Replies
10478 Views |
February 23, 2021, 12:59:56 pm by DougGuy |
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Single Input 5f6a Questions.
Started by thebard |
4 Replies
4183 Views |
February 23, 2021, 01:37:32 am by thebard |
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SOLVED: Stuck on this build
Started by munkeyboy |
45 Replies
13009 Views |
February 22, 2021, 09:35:59 pm by PRR |
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