Welcome To the Hoffman Amplifiers Forum
September 06, 2025, 09:39:11 pm
Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 09:39:11 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 21 Guests are viewing this board. | ||||
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Avoiding Microphonic ef86 in v1
Started by Ed_Chambley |
17 Replies
7248 Views |
May 21, 2013, 11:19:59 amby sluckey |
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Moody BA40 Bassman
Started by TIMBO |
2 Replies
3688 Views |
May 20, 2013, 07:23:25 pm by darryl |
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Identify these caps!
Started by limit6 |
6 Replies
2329 Views |
May 20, 2013, 10:16:41 am by limit6 |
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Adding bias pot to a Traynor YRM-1 (and Screen R question)
Started by g-man |
10 Replies
5859 Views |
May 19, 2013, 05:46:22 pm by g-man |
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1 Replies
1782 Views |
May 19, 2013, 11:43:16 am by sluckey |
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choosing a thermistor ?
Started by floyd |
12 Replies
5054 Views |
May 18, 2013, 11:38:26 pm by floyd |
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2 Replies
3696 Views |
May 18, 2013, 01:40:37 pm by kagliostro |
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Univox 1221 Rebuild-Mod
Started by silverfox |
26 Replies
7762 Views |
May 18, 2013, 12:23:30 pm by silverfox |
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Another nice "barn find"
Started by eleventeen |
5 Replies
2806 Views |
May 18, 2013, 07:05:51 am by sluckey |
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5 Replies
2589 Views |
May 17, 2013, 03:47:01 pm by Tone Junkie |
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13 Replies
4439 Views |
May 17, 2013, 05:00:33 am by kagliostro |
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Ampeg SJ12R schematic
Started by phsyconoodler |
15 Replies
6187 Views |
May 16, 2013, 10:17:20 pm by phsyconoodler |
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24 Replies
6843 Views |
May 14, 2013, 05:44:36 pm by jjasilli |
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tracking down a short
Started by Bugman3183 |
19 Replies
6971 Views |
May 14, 2013, 03:33:54 pm by Ed_Chambley |
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How does this look for a bias supply?
Started by SILVERGUN |
13 Replies
4525 Views |
May 14, 2013, 02:48:15 pm by kagliostro |
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Mesa Mark V Repair
Started by Finkilium |
5 Replies
3704 Views |
May 14, 2013, 02:09:53 am by Jack1962 |
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3 Replies
2752 Views |
May 13, 2013, 12:12:55 am by HotBluePlates |
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Power Amp- Current Build
Started by silverfox |
12 Replies
5587 Views |
May 12, 2013, 12:20:57 am by silverfox |
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Bias- Voltage or Current?
Started by silverfox |
15 Replies
10021 Views |
May 11, 2013, 11:43:18 pm by silverfox |
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Impedance part 1
Started by spacelabstudio |
20 Replies
5538 Views |
May 11, 2013, 08:00:09 am by burt_toast |
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1-Tube Reverb addon
Started by Ray48 |
21 Replies
5428 Views |
May 10, 2013, 10:55:30 pm by PRR |
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LARMAR grounding question?
Started by ncusack |
3 Replies
2087 Views |
May 10, 2013, 12:07:01 pm by sluckey |
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PT Identification
Started by Ed_Chambley |
37 Replies
9438 Views |
May 10, 2013, 11:51:52 am by DummyLoad |
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12 Replies
3687 Views |
May 09, 2013, 10:36:01 pm by Madison |
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Matchless DC30 channel 2
Started by Leevi |
18 Replies
9245 Views |
May 09, 2013, 02:00:11 am by Leevi |
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Power Transformer Ordering Questions
Started by silverfox |
13 Replies
4069 Views |
May 08, 2013, 11:11:22 pm by silverfox |
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6AF11 Push Pull Amp
Started by hayruss |
45 Replies
17906 Views |
May 08, 2013, 05:18:46 pm by John |
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10 Replies
4669 Views |
May 08, 2013, 07:41:57 am by kagliostro |
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SF Twin Reverb with buzzy reverb
Started by BigE |
5 Replies
2408 Views |
May 07, 2013, 07:13:57 pm by eleventeen |
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plexi clone issues
Started by phsyconoodler |
14 Replies
4551 Views |
May 07, 2013, 01:55:47 pm by plexi50 |
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Silvertone 1484 reverb mod question
Started by chrisq |
4 Replies
3256 Views |
May 07, 2013, 08:07:08 am by plexi50 |
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The importance of sag?
Started by SILVERGUN |
41 Replies
17301 Views |
May 07, 2013, 07:19:14 am by HotBluePlates |
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'73 Traynor YBA-1
Started by burt_toast |
4 Replies
2806 Views |
May 05, 2013, 07:04:36 am by Willabe |
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Valco 510-11 issues
Started by haliles |
14 Replies
5114 Views |
May 05, 2013, 07:02:12 am by Willabe |
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Separate preamp power supply
Started by dscottguitars |
14 Replies
4139 Views |
May 04, 2013, 09:50:23 pm by HotBluePlates |
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MAKING PROGRESS ON A FRUSTRATING BUILD
Started by TIMBO |
26 Replies
7044 Views |
May 04, 2013, 05:09:24 am by tubenit |
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6 Replies
3290 Views |
May 04, 2013, 12:53:42 am by kagliostro |
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Voltage level question
Started by VMS |
14 Replies
6720 Views |
May 03, 2013, 08:46:17 am by HotBluePlates |
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5U4GT Rectifier voltages
Started by simonallaway |
8 Replies
4401 Views |
May 02, 2013, 12:17:15 pm by simonallaway |
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Scary SF 73 Twin in for service
Started by Madison |
33 Replies
8389 Views |
May 02, 2013, 12:01:50 am by Madison |
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Hook-Up wire
Started by J Rindt |
6 Replies
3541 Views |
May 01, 2013, 10:23:58 pm by HotBluePlates |
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mystery transformer set
Started by g-man |
15 Replies
5019 Views |
May 01, 2013, 05:28:34 pm by Willabe |
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22 Replies
8156 Views |
May 01, 2013, 12:17:44 pm by thelonious |
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Identifying leaking caps
Started by SleepLess |
8 Replies
3340 Views |
May 01, 2013, 05:32:20 am by stratele52 |
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Adding preamp stage.
Started by slash1986 |
12 Replies
7487 Views |
April 30, 2013, 09:41:03 am by SILVERGUN |
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6 Replies
2824 Views |
April 29, 2013, 07:18:40 pm by plexi50 |
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6G15 Reverb + vib - single extra 12AX7?
Started by Papernut |
18 Replies
4927 Views |
April 29, 2013, 12:52:41 pm by Papernut |
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/13 bias
Started by Blind Lemon |
17 Replies
12723 Views |
April 28, 2013, 03:57:14 pm by kagliostro |
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Help with Soundtech PA Board please
Started by dwp |
1 Replies
2350 Views |
April 28, 2013, 03:43:18 pm by HotBluePlates |
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bias question
Started by scrimpus |
2 Replies
1879 Views |
April 28, 2013, 03:38:30 pm by HotBluePlates |
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