Welcome To the Hoffman Amplifiers Forum
April 28, 2026, 04:02:33 pm
Welcome To the Hoffman Amplifiers ForumApril 28, 2026, 04:02:33 pm | ||
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Hammond M100 Ao29 on the bench
Started by LooseChange |
5 Replies
7384 Views |
July 06, 2010, 09:12:20 amby FYL |
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Marshall style PT with 7V heater winding...
Started by bruno |
16 Replies
9167 Views |
July 06, 2010, 07:00:18 am by sluckey |
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7 Replies
7127 Views |
July 06, 2010, 06:47:11 am by FYL |
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Need help identifying these Pots!
Started by Platefire |
13 Replies
7064 Views |
July 05, 2010, 10:58:47 pm by Platefire |
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'75 Deluxe Reverb Overhaul Advice Needed
Started by Wilks |
7 Replies
5816 Views |
July 05, 2010, 12:42:10 pm by pullshocks |
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Need Marshall schem and/or bit of info
Started by dynaman1 |
2 Replies
3732 Views |
July 05, 2010, 12:26:08 pm by dynaman1 |
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JCM 900 tone opinions and known mods
Started by bnwitt |
7 Replies
6422 Views |
July 05, 2010, 10:57:23 am by tubenit |
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Blues Jr. Upgrade secrets
Started by Tiny_Daddy |
7 Replies
7313 Views |
July 04, 2010, 09:19:16 pm by bigdaddy |
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Power & Standby switch alternatives
Started by Fresh_Start |
1 Replies
3659 Views |
July 04, 2010, 04:15:27 pm by bigdaddy |
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6 Replies
5378 Views |
July 04, 2010, 02:21:56 pm by bigdaddy |
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14 Replies
15383 Views |
July 04, 2010, 11:04:03 am by theundeadelvis |
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Silverface Twin Reverb
Started by Tiny_Daddy |
4 Replies
4378 Views |
July 04, 2010, 08:59:58 am by Tiny_Daddy |
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Some of the recents
Started by Madison |
5 Replies
5567 Views |
July 04, 2010, 08:57:50 am by LooseChange |
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Too many nice little amps
Started by TIMBO |
1 Replies
4352 Views |
July 04, 2010, 02:07:44 am by TIMBO |
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4 Replies
5841 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
3930 Views |
July 03, 2010, 09:34:15 am by Geezer |
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What tube is this?
Started by SLW |
10 Replies
6568 Views |
July 03, 2010, 03:19:41 am by HotBluePlates |
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PT question
Started by bigdaddy |
20 Replies
9669 Views |
July 02, 2010, 11:22:52 pm by eleventeen |
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Input shield connected to Plate??
Started by bnwitt |
13 Replies
9512 Views |
July 02, 2010, 06:12:22 pm by bnwitt |
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EF86 Tubes
Started by NannerPuddin |
3 Replies
4451 Views |
July 02, 2010, 04:08:46 pm by loogie |
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8 Replies
6319 Views |
July 02, 2010, 08:55:13 am by kagliostro |
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pots and high frequency
Started by Leevi |
12 Replies
6885 Views |
July 02, 2010, 08:00:10 am by bluesbear |
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Are these Wimas Worth Anything?
Started by jerryjg |
3 Replies
3957 Views |
July 02, 2010, 07:37:40 am by bluesbear |
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5 watt SLO
Started by Rev D |
1 Replies
5668 Views |
July 02, 2010, 05:23:58 am by JB |
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1 Replies
4023 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
9002 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
7660 Views |
June 30, 2010, 05:26:29 pm by jojokeo |
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Hammond L133 Power Transformer
Started by Jack1962 |
3 Replies
5439 Views |
June 30, 2010, 09:55:47 am by Jack1962 |
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Circuit Digestion - Ampex MX-10
Started by RicharD |
16 Replies
13045 Views |
June 30, 2010, 01:49:03 am by PRR |
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6Ak6/6G6 info
Started by bigdaddy |
11 Replies
15557 Views |
June 29, 2010, 07:03:27 pm by bigdaddy |
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Looking for AB763 transformer advice
Started by nateflanigan |
18 Replies
9530 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
8999 Views |
June 29, 2010, 10:13:29 am by DummyLoad |
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5F6-A+5E3 combination
Started by harryk |
12 Replies
9298 Views |
June 29, 2010, 04:14:50 am by HotBluePlates |
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MOVED: PC Based Oscilloscope
Started by PRR |
0 Replies
3935 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
4105 Views |
June 28, 2010, 10:39:37 am by phsyconoodler |
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Are this tubes usable ?
Started by kagliostro |
16 Replies
8967 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
13603 Views |
June 27, 2010, 10:51:53 pm by Rev D |
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9 Replies
5848 Views |
June 27, 2010, 08:27:41 pm by tubenit |
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9 Replies
7004 Views |
June 27, 2010, 03:21:29 pm by SoundmasterG |
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Mating aa864 with ab165
Started by J Rindt |
4 Replies
4371 Views |
June 27, 2010, 12:34:28 pm by J Rindt |
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Identifying source of Hum
Started by joelap |
10 Replies
7138 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
8604 Views |
June 27, 2010, 08:58:34 am by Dave |
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Sovtek 5Y3GT went poof!
Started by mresistor |
10 Replies
7267 Views |
June 27, 2010, 05:18:04 am by Danskman |
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20 Replies
10285 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
10323 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
11290 Views |
June 26, 2010, 10:22:33 pm by bnwitt |
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Harp Amps?
Started by nastyoldtech |
11 Replies
9346 Views |
June 26, 2010, 05:49:02 pm by chuggy |
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Bias keeps changing on Hiwatt
Started by frank57 |
4 Replies
5365 Views |
June 25, 2010, 10:56:22 pm by HotBluePlates |
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My newest build
Started by JayB |
11 Replies
6934 Views |
June 25, 2010, 05:29:06 pm by JayB |
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Ground PI with power?
Started by theundeadelvis |
5 Replies
6309 Views |
June 25, 2010, 04:30:32 pm by theundeadelvis |
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