Welcome To the Hoffman Amplifiers Forum
January 24, 2026, 07:19:45 am
Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 07:19:45 am | ||
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Fowler's Hot Rod Plexi #39
Started by purpletele « 1 2 » |
51 Replies
19010 Views |
May 06, 2019, 07:24:20 pmby purpletele |
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Power Amp 40-50 Watts with 4 5881s
Started by mwelch55 |
3 Replies
3099 Views |
May 06, 2019, 05:31:53 pm by jjasilli |
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59 Replies
27167 Views |
May 06, 2019, 10:19:00 am by sluckey |
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Using proper choke
Started by dude |
10 Replies
5365 Views |
May 06, 2019, 10:01:38 am by DummyLoad |
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Filter caps wiring Bandmaster
Started by Oddvar |
2 Replies
2816 Views |
May 05, 2019, 10:54:24 am by Tony Bones |
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headphone out for tube amp
Started by Papa Jim |
6 Replies
5472 Views |
May 05, 2019, 08:49:45 am by MFowler |
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9 Replies
4097 Views |
May 04, 2019, 04:39:07 am by John |
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63 Replies
18418 Views |
May 03, 2019, 09:25:08 am by shooter |
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1 Replies
2317 Views |
May 02, 2019, 11:24:56 am by shooter |
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Stromberg Carlson build- low volume
Started by zapdog |
13 Replies
4904 Views |
May 01, 2019, 08:23:31 pm by zapdog |
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Plexi 6V6 build
Started by newguitarsmell |
11 Replies
5226 Views |
May 01, 2019, 07:02:09 pm by Colas LeGrippa |
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A few pics of my "Deluxe Lite" Build
Started by Joe6v6 |
2 Replies
3229 Views |
April 30, 2019, 09:17:55 pm by Papa Jim |
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Bright Cap on Tone King MkII Imperial?
Started by BobL |
16 Replies
7912 Views |
April 30, 2019, 07:14:27 pm by VMS |
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Twisted idea for Standby Switch?
Started by sluckey |
28 Replies
9719 Views |
April 30, 2019, 09:23:02 am by shooter |
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Vibro Champ with harmonic tremolo?
Started by Opry Audio |
15 Replies
7001 Views |
April 30, 2019, 06:25:42 am by kagliostro |
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reverb into sound card
Started by isaac_teller |
4 Replies
2993 Views |
April 29, 2019, 11:54:52 pm by isaac_teller |
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NFB circuit 5F6A vs JTM45
Started by vampwizzard |
4 Replies
3733 Views |
April 29, 2019, 08:48:09 pm by vampwizzard |
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1 Replies
2671 Views |
April 29, 2019, 02:43:10 pm by st |
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14 Replies
6651 Views |
April 29, 2019, 12:26:51 pm by Tbone55 |
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Switching on OT input impedance
Started by daveyajd |
5 Replies
3956 Views |
April 28, 2019, 05:18:26 pm by daveyajd |
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3 Replies
3363 Views |
April 28, 2019, 08:31:29 am by cboysen |
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Smal Mil spec SE OT - one question
Started by kagliostro |
6 Replies
3907 Views |
April 28, 2019, 06:46:29 am by kagliostro |
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4 Replies
2907 Views |
April 27, 2019, 03:37:52 pm by Tbone55 |
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8uf vs 10 uf 450v in amp build?
Started by Oddvar |
15 Replies
6379 Views |
April 26, 2019, 03:06:46 pm by shooter |
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What is this?
Started by Oddvar |
4 Replies
2896 Views |
April 26, 2019, 10:00:35 am by sluckey |
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Some questions about the GU-17
Started by ECV02 |
12 Replies
6910 Views |
April 25, 2019, 03:36:50 pm by kagliostro |
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Pilot light
Started by uki |
3 Replies
3338 Views |
April 25, 2019, 07:40:33 am by shooter |
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8 Replies
4775 Views |
April 25, 2019, 06:44:49 am by bmccowan |
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Channel Mixing Resistors
Started by TIMBO |
15 Replies
10093 Views |
April 24, 2019, 05:22:39 pm by tubeswell |
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Tube substitution
Started by g-man |
5 Replies
4634 Views |
April 24, 2019, 03:06:20 pm by g-man |
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104 Replies
39847 Views |
April 23, 2019, 02:41:34 pm by PRR |
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Ground question
Started by Joe6v6 |
11 Replies
6006 Views |
April 23, 2019, 02:38:48 am by st |
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5 Replies
6604 Views |
April 22, 2019, 07:08:17 pm by jeff_free69 |
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23 Replies
8702 Views |
April 22, 2019, 02:56:12 pm by kagliostro |
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Looking for special shape tube
Started by Colas LeGrippa |
5 Replies
3428 Views |
April 21, 2019, 06:38:14 pm by Colas LeGrippa |
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6 Replies
5290 Views |
April 19, 2019, 06:34:09 pm by kagliostro |
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Another Valve Jr Question
Started by Electron Tornado |
2 Replies
2582 Views |
April 19, 2019, 12:33:52 pm by PRR |
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8 Replies
4521 Views |
April 18, 2019, 09:04:33 pm by MakerDP |
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8 Replies
4593 Views |
April 18, 2019, 07:09:04 pm by BobL |
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6 Replies
4395 Views |
April 18, 2019, 11:18:45 am by Electron Tornado |
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5E3 Normal Channel not working
Started by mebond11 |
8 Replies
4861 Views |
April 17, 2019, 04:30:00 pm by mebond11 |
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12AU7 output tube
Started by jeff |
22 Replies
22224 Views |
April 17, 2019, 01:13:29 pm by PRR |
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18 Replies
7173 Views |
April 17, 2019, 05:54:05 am by ALBATROS1234 |
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JMP 2204 Build with relay switching
Started by NSB_Chris |
4 Replies
3761 Views |
April 17, 2019, 05:21:20 am by NSB_Chris |
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350k pot with tap
Started by Shack |
15 Replies
9262 Views |
April 16, 2019, 07:10:07 pm by MFowler |
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Elevated heaters: what not to do.
Started by Colas LeGrippa |
16 Replies
7758 Views |
April 16, 2019, 12:29:22 pm by ALBATROS1234 |
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Vox AC30HWH noisy top boost section
Started by defcon.klaxon |
8 Replies
6124 Views |
April 16, 2019, 09:42:44 am by st |
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blues jr no reverb
Started by Papa Jim |
17 Replies
6659 Views |
April 15, 2019, 07:27:55 pm by Papa Jim |
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6 Replies
7507 Views |
April 15, 2019, 05:03:01 pm by Colas LeGrippa |
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Body control pot
Started by uki |
11 Replies
6383 Views |
April 15, 2019, 04:17:40 pm by VMS |
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