Welcome To the Hoffman Amplifiers Forum
October 23, 2025, 12:38:03 pm
Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 12:38:03 pm | ||
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Bias with 1.3 ohm cathode resistors
Started by 6v6Pin1 |
24 Replies
6899 Views |
November 21, 2015, 08:46:19 amby alerich |
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Kustom defender 15h mod repair
Started by Sowndman |
14 Replies
8635 Views |
November 20, 2015, 01:42:16 pm by PRR |
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adjusting preamp gain
Started by Toxophilite |
12 Replies
9635 Views |
November 20, 2015, 12:39:01 pm by Toxophilite |
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13 Replies
4493 Views |
November 20, 2015, 07:28:45 am by Ed_Chambley |
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tremelo
Started by Toxophilite |
11 Replies
3745 Views |
November 19, 2015, 06:06:48 pm by Willabe |
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VVR for 100 watt fixed bias amps
Started by phsyconoodler |
29 Replies
13343 Views |
November 19, 2015, 05:37:17 pm by HotBluePlates |
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Marshall jtm-45/1987t schematic question
Started by Sowndman |
3 Replies
3326 Views |
November 18, 2015, 10:56:21 pm by PRR |
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2 Replies
1856 Views |
November 18, 2015, 02:30:10 pm by EL34 |
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What power amp is this??
Started by Toxophilite |
44 Replies
11812 Views |
November 18, 2015, 08:28:13 am by shooter |
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17 Replies
4500 Views |
November 17, 2015, 07:53:32 pm by goldstache |
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154 Replies
37211 Views |
November 17, 2015, 07:33:09 pm by Willabe |
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Cutting a faceplate on a CNC
Started by tubesornothing |
3 Replies
3597 Views |
November 17, 2015, 06:28:57 pm by vibrolax |
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BOGEN CHB 20A
Started by Colas LeGrippa |
9 Replies
3847 Views |
November 17, 2015, 08:45:12 am by Colas LeGrippa |
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7 Replies
2661 Views |
November 17, 2015, 04:22:25 am by Sowndman |
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Noisy reverb circuit
Started by Toxophilite |
11 Replies
3621 Views |
November 16, 2015, 10:35:17 pm by Fresh_Start |
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5F6 preamp voltages
Started by Bub |
5 Replies
2841 Views |
November 16, 2015, 07:38:33 pm by Bub |
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What to do with this PT?
Started by VMS |
15 Replies
4702 Views |
November 16, 2015, 06:33:05 pm by VMS |
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Center tap fuse on JTM45
Started by keithv |
5 Replies
3737 Views |
November 16, 2015, 12:06:11 pm by sluckey |
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11 Replies
4518 Views |
November 15, 2015, 07:03:06 pm by Steve_P |
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5f2a Power supply filtering question
Started by morton |
46 Replies
15077 Views |
November 15, 2015, 02:21:44 pm by HotBluePlates |
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Fender Super Reverb
Started by Big chief |
2 Replies
2081 Views |
November 15, 2015, 09:02:31 am by Big chief |
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Best preamp tubes for 1966 Vibrolux
Started by TerryD |
7 Replies
3086 Views |
November 14, 2015, 09:21:41 am by clyde |
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Fi Sonic 10W Combo
Started by TIMBO |
6 Replies
3372 Views |
November 14, 2015, 07:47:18 am by printer2 |
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20 Replies
6981 Views |
November 14, 2015, 07:02:49 am by EL34 |
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1st 5E3 build dead short problem
Started by Skip Hagey |
17 Replies
4476 Views |
November 13, 2015, 01:52:14 pm by sluckey |
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2 Replies
2043 Views |
November 13, 2015, 10:57:46 am by hesamadman |
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switching SS/Tube Rectification
Started by hesamadman |
11 Replies
4030 Views |
November 12, 2015, 11:20:49 pm by 2deaf |
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Bias Balance "AND" Bias Adjust
Started by cjl1106 |
31 Replies
17427 Views |
November 12, 2015, 10:04:23 pm by pompeiisneaks |
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Triple Header Amp Build???
Started by Paul1453 |
39 Replies
12495 Views |
November 12, 2015, 10:02:28 pm by printer2 |
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OT Tranny Polarity/PI Polarity
Started by fiftynine |
16 Replies
5247 Views |
November 11, 2015, 05:28:57 pm by Willabe |
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14 Replies
4798 Views |
November 10, 2015, 11:30:57 pm by PRR |
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6 Replies
3038 Views |
November 10, 2015, 04:27:37 pm by PRR |
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Reverb Question
Started by dunner84 |
2 Replies
1914 Views |
November 10, 2015, 06:57:58 am by dunner84 |
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Bias vary Tremelo problem
Started by Toxophilite « 1 2 » |
58 Replies
12474 Views |
November 09, 2015, 05:34:33 pm by shooter |
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What kinds of things blows fuses?
Started by TerryD |
9 Replies
3674 Views |
November 09, 2015, 05:26:33 pm by TerryD |
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My AC30 build
Started by pompeiisneaks « 1 2 » |
54 Replies
12103 Views |
November 09, 2015, 11:10:41 am by pompeiisneaks |
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New Princeton Build - Very low volume
Started by daveneary |
24 Replies
8561 Views |
November 09, 2015, 06:51:42 am by HotBluePlates |
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Phaser sound with heavy distortion
Started by Ambugaton |
3 Replies
2349 Views |
November 07, 2015, 08:29:22 pm by HotBluePlates |
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14 Replies
4649 Views |
November 07, 2015, 06:50:15 pm by Colas LeGrippa |
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fender 5d5 pro amp
Started by DummyLoad |
1 Replies
2124 Views |
November 07, 2015, 09:32:16 am by HotBluePlates |
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Transformer education please;)
Started by crashtm1 |
2 Replies
2407 Views |
November 07, 2015, 08:17:57 am by vibrolax |
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Fender Blues Deville Bias schematic
Started by MikePR |
4 Replies
4352 Views |
November 06, 2015, 11:51:37 pm by PRR |
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Rectifier saftey
Started by p2pAmps |
25 Replies
6155 Views |
November 06, 2015, 07:32:34 pm by uki |
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38 Replies
15673 Views |
November 06, 2015, 06:36:15 pm by 2deaf |
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JTM45 makes awful noise when turned up
Started by keithv |
11 Replies
4351 Views |
November 06, 2015, 03:12:47 pm by Willabe |
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11 Replies
3748 Views |
November 06, 2015, 02:16:58 pm by HotBluePlates |
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AX84 High Octane build
Started by Paul1453 |
11 Replies
5577 Views |
November 06, 2015, 09:41:26 am by John |
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9 Replies
3088 Views |
November 05, 2015, 10:40:08 pm by tubesornothing |
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AB763 Twin build
Started by willhugh |
1 Replies
1942 Views |
November 05, 2015, 05:42:02 pm by sluckey |
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Tweed Overdrive Special - EF86
Started by adamG |
10 Replies
5337 Views |
November 05, 2015, 12:36:33 pm by tubenit |
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