Welcome To the Hoffman Amplifiers Forum
March 12, 2026, 04:56:31 am
Welcome To the Hoffman Amplifiers ForumMarch 12, 2026, 04:56:31 am | ||
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POWER SUPPLY QUESTION
Started by Colas LeGrippa |
5 Replies
3611 Views |
May 05, 2016, 06:55:53 amby Colas LeGrippa |
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Causes of ghost notes and a stubborn Magnatone 421
Started by Evergreen |
7 Replies
4752 Views |
May 05, 2016, 05:03:15 am by Evergreen |
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13 Replies
5608 Views |
May 04, 2016, 05:21:08 pm by HotBluePlates |
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1 Replies
2967 Views |
May 04, 2016, 12:09:41 am by sluckey |
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Loud hum on 5f6a build
Started by ab764 |
14 Replies
5140 Views |
May 03, 2016, 05:02:23 pm by ab764 |
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Old Bassman Cabinet for new Project
Started by basschops1528 |
2 Replies
4114 Views |
May 02, 2016, 08:36:57 pm by Paul1453 |
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0 Replies
2688 Views |
May 02, 2016, 12:36:34 pm by hopkinWFG |
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Lower B+ options
Started by basschops1528 |
4 Replies
3943 Views |
May 02, 2016, 11:54:02 am by HotBluePlates |
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7 Replies
3821 Views |
May 02, 2016, 06:53:03 am by smackoj |
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B+ and plate voltage relationship
Started by TIMBO |
8 Replies
9473 Views |
May 01, 2016, 03:43:47 pm by TIMBO |
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40 Replies
9996 Views |
May 01, 2016, 11:33:19 am by sean_thornton |
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MOVED: Listening probe questions
Started by Willabe |
0 Replies
2849 Views |
April 30, 2016, 09:25:24 pm by Willabe |
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18 watt Hoffman Stout into 30 watt?
Started by Oddvar |
5 Replies
3698 Views |
April 30, 2016, 09:02:32 pm by basschops1528 |
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Princeton Reverb Hiss and Hum
Started by dajazzman |
44 Replies
15234 Views |
April 30, 2016, 05:37:35 pm by h4ck.b0x7 |
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17 Replies
8746 Views |
April 30, 2016, 01:20:31 pm by Fresh_Start |
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AB763 White Noise & Hum
Started by h4ck.b0x7 |
43 Replies
15191 Views |
April 29, 2016, 03:42:04 pm by h4ck.b0x7 |
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Questions about gage of wire.
Started by makingnoise88 |
20 Replies
9322 Views |
April 29, 2016, 10:31:13 am by HotBluePlates |
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Differences between pots
Started by MoparWade |
5 Replies
3673 Views |
April 29, 2016, 12:58:16 am by MoparWade |
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Bias shifts after playing
Started by osing |
9 Replies
7554 Views |
April 28, 2016, 02:44:59 pm by Paul1453 |
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36 Replies
22569 Views |
April 28, 2016, 02:25:07 pm by Ed_Chambley |
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1 Replies
3588 Views |
April 28, 2016, 11:22:48 am by shooter |
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Star Grounding Schemes
Started by turtle441 |
2 Replies
3825 Views |
April 28, 2016, 09:31:44 am by Fresh_Start |
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Effects of running 6.3V tubes with 5.5V?
Started by casssax |
10 Replies
10525 Views |
April 28, 2016, 09:12:44 am by casssax |
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Blues Junior transformer
Started by chrischris |
7 Replies
4363 Views |
April 28, 2016, 08:09:11 am by chrischris |
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Tube amp impedance question
Started by Guitarzan |
14 Replies
7302 Views |
April 27, 2016, 07:13:57 am by Guitarzan |
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AB763 Amp Build Problems
Started by h4ck.b0x7 |
11 Replies
4144 Views |
April 27, 2016, 12:23:45 am by h4ck.b0x7 |
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1 Replies
4746 Views |
April 26, 2016, 05:06:07 pm by HotBluePlates |
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53 Replies
17876 Views |
April 26, 2016, 02:41:41 pm by EL34 |
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Sudden loss of volume in Vibrolux
Started by macula56 |
18 Replies
7164 Views |
April 25, 2016, 07:17:30 am by macula56 |
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11 Replies
5431 Views |
April 24, 2016, 05:39:13 pm by Shack |
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AC 30 replica
Started by Hargestbatman |
8 Replies
5621 Views |
April 24, 2016, 04:58:01 pm by G._Hoffman |
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Wiring power transformer 5e3
Started by Oddvar |
4 Replies
4122 Views |
April 24, 2016, 11:37:47 am by sluckey |
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Failing Power supply Cap Question
Started by ncusack |
2 Replies
3324 Views |
April 23, 2016, 06:47:43 am by Colas LeGrippa |
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Noise/Distortion from my house
Started by willhugh |
4 Replies
3024 Views |
April 22, 2016, 07:16:26 pm by willhugh |
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Bassman AB165 low level noise issue
Started by mresistor |
25 Replies
9030 Views |
April 22, 2016, 06:33:13 pm by mresistor |
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MOVED: Flooding down in Texas
Started by tubenit |
0 Replies
3027 Views |
April 21, 2016, 02:16:24 pm by tubenit |
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DIY optocoupler
Started by basschops1528 |
2 Replies
4005 Views |
April 21, 2016, 02:02:18 pm by eleventeen |
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DSL50 Heater Problems
Started by dpm309 |
3 Replies
2790 Views |
April 20, 2016, 06:31:58 pm by pompeiisneaks |
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67 Pro Verb - Sound Check
Started by p2pAmps |
38 Replies
11504 Views |
April 20, 2016, 06:02:19 pm by mresistor |
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Kalamazoo Model Two problem
Started by mresistor |
15 Replies
5367 Views |
April 20, 2016, 03:29:43 pm by mresistor |
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motorboating ?
Started by shooter |
11 Replies
4120 Views |
April 19, 2016, 08:49:31 pm by shooter |
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32 Replies
10626 Views |
April 19, 2016, 04:40:10 pm by Voxacthirtee |
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11 Replies
5797 Views |
April 19, 2016, 02:20:21 pm by pnadora |
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what problem of my ac30
Started by kwm488 |
11 Replies
5553 Views |
April 19, 2016, 12:03:22 pm by sluckey |
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Doug's 5F6A Bassman Build
Started by pompeiisneaks |
25 Replies
7534 Views |
April 18, 2016, 10:47:31 pm by pompeiisneaks |
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3 Replies
3651 Views |
April 18, 2016, 10:09:25 pm by Whiskeyzipper |
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My new faceplate
Started by p2pAmps |
9 Replies
4363 Views |
April 18, 2016, 09:10:26 pm by p2pAmps |
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13 Replies
10788 Views |
April 18, 2016, 06:01:55 pm by Paul1453 |
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transformer position and oscillation
Started by alange5 |
5 Replies
4506 Views |
April 18, 2016, 04:10:15 pm by PRR |
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5E3 in a PR Chassis
Started by p2pAmps |
19 Replies
6111 Views |
April 18, 2016, 08:07:18 am by p2pAmps |
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