Welcome To the Hoffman Amplifiers Forum
December 09, 2025, 09:54:23 am
Welcome To the Hoffman Amplifiers ForumDecember 09, 2025, 09:54:23 am | ||
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hiss in my new build - ideas??
Started by markmalin |
27 Replies
12827 Views |
May 20, 2010, 06:43:33 pmby tubeswell |
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Noisey Switches
Started by TIMBO |
4 Replies
3714 Views |
May 20, 2010, 03:01:22 pm by Shrapnel |
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7 Replies
9127 Views |
May 19, 2010, 06:56:40 pm by PRR |
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Hiwatt problems
Started by frank57 |
40 Replies
20489 Views |
May 19, 2010, 02:24:27 pm by frank57 |
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output ohm question?
Started by john_t |
6 Replies
4810 Views |
May 19, 2010, 04:14:07 am by HotBluePlates |
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Gibson Lancer GA 35 RVT
Started by plexi50 |
34 Replies
16694 Views |
May 18, 2010, 02:27:24 pm by plexi50 |
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Crackling EL34s
Started by Madison |
16 Replies
7149 Views |
May 18, 2010, 07:13:56 am by Madison |
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"New" design critique needed
Started by TweeDLX |
7 Replies
4625 Views |
May 17, 2010, 11:50:22 pm by TweeDLX |
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blowing fuses ga 5
Started by john_t |
25 Replies
9047 Views |
May 17, 2010, 10:33:51 pm by john_t |
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Handwound transformers???
Started by crashtm1 |
10 Replies
6125 Views |
May 17, 2010, 07:01:39 pm by crashtm1 |
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Need help with noisy Ampeg J-20
Started by mfc_pj |
10 Replies
7207 Views |
May 17, 2010, 06:50:01 pm by Rich |
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Framus Cobra Head
Started by dpm309 |
5 Replies
5842 Views |
May 17, 2010, 06:47:07 pm by dpm309 |
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Wiring questions.
Started by tinker |
5 Replies
4460 Views |
May 17, 2010, 02:57:01 pm by jojokeo |
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Hum in 1978 Vibrolux Reverb
Started by Gene |
22 Replies
11014 Views |
May 17, 2010, 11:19:18 am by Gene |
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MASTER VOLUME FOR EACH PAIR
Started by rzenc |
16 Replies
8445 Views |
May 16, 2010, 09:22:53 am by rzenc |
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12 Replies
5692 Views |
May 16, 2010, 09:12:42 am by tubenit |
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One tube reverb info
Started by TIMBO |
5 Replies
4253 Views |
May 16, 2010, 06:41:32 am by tubenit |
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10 Replies
9945 Views |
May 15, 2010, 11:58:20 am by HotBluePlates |
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Brain Cell Loss / -ma
Started by plexi50 |
4 Replies
3752 Views |
May 14, 2010, 09:34:10 pm by plexi50 |
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Marshall pilot lamps
Started by Tiny_Daddy |
9 Replies
4967 Views |
May 14, 2010, 01:23:40 pm by labb |
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converting 4-EL84 to KT66.
Started by dwp |
5 Replies
6083 Views |
May 14, 2010, 08:30:59 am by dwp |
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3 Replies
4810 Views |
May 14, 2010, 04:59:09 am by FYL |
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Headphones from speaker jack?
Started by dynaman1 |
5 Replies
4525 Views |
May 13, 2010, 03:43:46 pm by dynaman1 |
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Sovtek Mig 60
Started by plexi50 |
14 Replies
9187 Views |
May 13, 2010, 02:04:43 am by The_Gaz |
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7 Replies
6263 Views |
May 12, 2010, 10:31:25 pm by jjasilli |
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Fender Concert Blackface plate voltage
Started by chocopower |
3 Replies
4482 Views |
May 12, 2010, 04:10:57 pm by JayB |
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'69 Marshall Head 6550 to EL34
Started by NannerPuddin |
1 Replies
3172 Views |
May 12, 2010, 04:08:32 pm by jojokeo |
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voltage tolerance
Started by bnew63 |
17 Replies
7628 Views |
May 11, 2010, 06:02:11 pm by RicharD |
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3 Replies
3922 Views |
May 11, 2010, 03:22:48 pm by archaos |
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22 Replies
13071 Views |
May 11, 2010, 12:28:25 pm by simonallaway |
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6 Replies
5899 Views |
May 10, 2010, 11:07:15 pm by Ritchie200 |
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Totem Pole
Started by duke of earl |
16 Replies
8678 Views |
May 10, 2010, 09:14:05 pm by duke of earl |
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6 Replies
9470 Views |
May 10, 2010, 11:49:50 am by Jack1962 |
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15 Replies
7910 Views |
May 09, 2010, 11:55:57 pm by TubeGeek |
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6550 bias in ultraliniear connection
Started by Bub |
11 Replies
10319 Views |
May 09, 2010, 08:51:58 pm by Bub |
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to drop voltage or not?
Started by bnew63 |
8 Replies
4956 Views |
May 09, 2010, 03:52:34 pm by bnew63 |
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19 Replies
10860 Views |
May 09, 2010, 12:14:36 pm by imaradiostar |
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6 Replies
5759 Views |
May 09, 2010, 12:01:32 pm by bigdaddy |
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Reverb driver
Started by Leevi |
18 Replies
9502 Views |
May 09, 2010, 11:58:58 am by imaradiostar |
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The "Opus" Amp??
Started by TIMBO |
18 Replies
7936 Views |
May 08, 2010, 05:47:31 pm by TIMBO |
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Looking for a good tube mic preamp schematic
Started by kagliostro « 1 2 » |
76 Replies
45217 Views |
May 08, 2010, 04:35:18 pm by kagliostro |
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18 Replies
14370 Views |
May 08, 2010, 01:35:55 pm by Fresh_Start |
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Grounding- AB763 AB165 AA864 etc.
Started by J Rindt |
5 Replies
7614 Views |
May 08, 2010, 01:23:50 pm by Fresh_Start |
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12ax7 Phase inverter voltages
Started by Bub |
3 Replies
10752 Views |
May 08, 2010, 10:41:07 am by Bub |
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Where to get a roach?
Started by tubesornothing |
3 Replies
3942 Views |
May 08, 2010, 01:05:48 am by Shrapnel |
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PP OPT in a SE Amp
Started by Trevor_Long |
7 Replies
5219 Views |
May 07, 2010, 08:12:16 pm by bigdaddy |
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6G6-A Bassman
Started by J Rindt |
7 Replies
5472 Views |
May 06, 2010, 03:16:49 pm by Shrapnel |
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Pro Reverb cap job
Started by gbeard |
2 Replies
3379 Views |
May 06, 2010, 07:50:29 am by alerich |
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22 Replies
10067 Views |
May 05, 2010, 10:32:44 pm by SoundmasterG |
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high low jack question ?
Started by john_t |
2 Replies
3124 Views |
May 05, 2010, 06:57:25 pm by john_t |
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