Welcome To the Hoffman Amplifiers Forum
January 24, 2026, 08:54:17 pm
Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 08:54:17 pm | ||
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| rafe and 41 Guests are viewing this board. | ||||
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Power & Standby switch alternatives
Started by Fresh_Start |
1 Replies
3179 Views |
July 04, 2010, 04:15:27 pmby bigdaddy |
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6 Replies
4736 Views |
July 04, 2010, 02:21:56 pm by bigdaddy |
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14 Replies
14482 Views |
July 04, 2010, 11:04:03 am by theundeadelvis |
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Silverface Twin Reverb
Started by Tiny_Daddy |
4 Replies
3843 Views |
July 04, 2010, 08:59:58 am by Tiny_Daddy |
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Some of the recents
Started by Madison |
5 Replies
4836 Views |
July 04, 2010, 08:57:50 am by LooseChange |
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Too many nice little amps
Started by TIMBO |
1 Replies
3800 Views |
July 04, 2010, 02:07:44 am by TIMBO |
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4 Replies
5094 Views |
July 03, 2010, 02:12:04 pm by RicharD |
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New amp D-HRM cathode biased
Started by tubenit |
3 Replies
3414 Views |
July 03, 2010, 09:34:15 am by Geezer |
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What tube is this?
Started by SLW |
10 Replies
5840 Views |
July 03, 2010, 03:19:41 am by HotBluePlates |
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PT question
Started by bigdaddy |
20 Replies
8624 Views |
July 02, 2010, 11:22:52 pm by eleventeen |
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Input shield connected to Plate??
Started by bnwitt |
13 Replies
8536 Views |
July 02, 2010, 06:12:22 pm by bnwitt |
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EF86 Tubes
Started by NannerPuddin |
3 Replies
3816 Views |
July 02, 2010, 04:08:46 pm by loogie |
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8 Replies
5552 Views |
July 02, 2010, 08:55:13 am by kagliostro |
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pots and high frequency
Started by Leevi |
12 Replies
6168 Views |
July 02, 2010, 08:00:10 am by bluesbear |
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Are these Wimas Worth Anything?
Started by jerryjg |
3 Replies
3424 Views |
July 02, 2010, 07:37:40 am by bluesbear |
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5 watt SLO
Started by Rev D |
1 Replies
4989 Views |
July 02, 2010, 05:23:58 am by JB |
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1 Replies
3450 Views |
July 01, 2010, 11:53:18 pm by PRR |
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Proper bias voltage range for EL34s
Started by bnwitt |
4 Replies
8295 Views |
June 30, 2010, 07:37:02 pm by bnwitt |
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HRM vs. 5E3 OD tone stack
Started by tubenit |
12 Replies
6905 Views |
June 30, 2010, 05:26:29 pm by jojokeo |
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Hammond L133 Power Transformer
Started by Jack1962 |
3 Replies
4920 Views |
June 30, 2010, 09:55:47 am by Jack1962 |
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Circuit Digestion - Ampex MX-10
Started by RicharD |
16 Replies
12233 Views |
June 30, 2010, 01:49:03 am by PRR |
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6Ak6/6G6 info
Started by bigdaddy |
11 Replies
14513 Views |
June 29, 2010, 07:03:27 pm by bigdaddy |
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Looking for AB763 transformer advice
Started by nateflanigan |
18 Replies
8552 Views |
June 29, 2010, 01:00:41 pm by Bp-Plickner |
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humming in new build...grrrrr!
Started by phsyconoodler |
17 Replies
8018 Views |
June 29, 2010, 10:13:29 am by DummyLoad |
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5F6-A+5E3 combination
Started by harryk |
12 Replies
8393 Views |
June 29, 2010, 04:14:50 am by HotBluePlates |
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MOVED: PC Based Oscilloscope
Started by PRR |
0 Replies
3436 Views |
June 29, 2010, 12:38:09 am by PRR |
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reverb problem in 66 vibrolux
Started by blues man |
2 Replies
3617 Views |
June 28, 2010, 10:39:37 am by phsyconoodler |
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Are this tubes usable ?
Started by kagliostro |
16 Replies
8041 Views |
June 28, 2010, 01:46:42 am by Rev D |
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Thoughts on the EF184?
Started by Rev D |
5 Replies
12860 Views |
June 27, 2010, 10:51:53 pm by Rev D |
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9 Replies
5174 Views |
June 27, 2010, 08:27:41 pm by tubenit |
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9 Replies
6251 Views |
June 27, 2010, 03:21:29 pm by SoundmasterG |
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Mating aa864 with ab165
Started by J Rindt |
4 Replies
3763 Views |
June 27, 2010, 12:34:28 pm by J Rindt |
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Identifying source of Hum
Started by joelap |
10 Replies
6408 Views |
June 27, 2010, 09:59:36 am by sluckey |
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Help Identify this board
Started by Custom_Amp_30 |
18 Replies
7820 Views |
June 27, 2010, 08:58:34 am by Dave |
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Sovtek 5Y3GT went poof!
Started by mresistor |
10 Replies
6364 Views |
June 27, 2010, 05:18:04 am by Danskman |
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20 Replies
9363 Views |
June 26, 2010, 11:03:38 pm by Platefire |
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(Re)intro and question about Fender PIs
Started by Blackdog |
17 Replies
9329 Views |
June 26, 2010, 10:35:59 pm by PRR |
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Fender 75 wierd power tube issue
Started by bnwitt |
20 Replies
10300 Views |
June 26, 2010, 10:22:33 pm by bnwitt |
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Harp Amps?
Started by nastyoldtech |
11 Replies
8520 Views |
June 26, 2010, 05:49:02 pm by chuggy |
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Bias keeps changing on Hiwatt
Started by frank57 |
4 Replies
4743 Views |
June 25, 2010, 10:56:22 pm by HotBluePlates |
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My newest build
Started by JayB |
11 Replies
6104 Views |
June 25, 2010, 05:29:06 pm by JayB |
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Ground PI with power?
Started by theundeadelvis |
5 Replies
5676 Views |
June 25, 2010, 04:30:32 pm by theundeadelvis |
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5 Replies
4260 Views |
June 25, 2010, 03:13:09 pm by joelap |
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More headroom in a Ampeg Gemini II
Started by chocopower |
11 Replies
10027 Views |
June 25, 2010, 10:54:50 am by eleventeen |
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7 Replies
8281 Views |
June 25, 2010, 07:58:41 am by NSFY |
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Acoustic thru twins normal channel mods?
Started by Searing |
8 Replies
6382 Views |
June 25, 2010, 12:38:21 am by PRR |
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Using a 12AV7
Started by SoundmasterG |
31 Replies
18619 Views |
June 24, 2010, 04:51:12 pm by SoundmasterG |
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can't bias tubes hot enough RESOLVED
Started by mageerc |
4 Replies
4596 Views |
June 24, 2010, 02:04:45 pm by bigdaddy |
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One tube pulsing in a quad
Started by jerryjg |
1 Replies
3525 Views |
June 24, 2010, 01:39:02 pm by John |
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Killer Ant arrived
Started by bigdaddy |
17 Replies
8545 Views |
June 24, 2010, 01:21:46 pm by bigdaddy |
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