Welcome To the Hoffman Amplifiers Forum
September 07, 2025, 08:55:29 am
Welcome To the Hoffman Amplifiers ForumSeptember 07, 2025, 08:55:29 am | ||
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| 0 Members and 21 Guests are viewing this board. | ||||
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180 Watt Super Twin Reverb bias
Started by TubeGeek |
6 Replies
4431 Views |
February 18, 2017, 08:27:45 pmby TubeGeek |
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1987x loss of volume
Started by Jaymz77 |
27 Replies
5391 Views |
February 18, 2017, 02:43:46 pm by Jaymz77 |
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12 Replies
6049 Views |
February 18, 2017, 11:39:22 am by jamaio |
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61 Replies
10987 Views |
February 18, 2017, 11:20:11 am by jamaio |
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I know this has been discussed a 1000 times.
Started by dude |
5 Replies
1973 Views |
February 18, 2017, 10:09:15 am by sluckey |
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7 Replies
2708 Views |
February 17, 2017, 08:12:26 pm by PRR |
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4 Replies
2747 Views |
February 17, 2017, 03:25:21 pm by HotBluePlates |
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JCM 800 - 2204 with 2*EL84 15w combo
Started by roseblood11 |
2 Replies
4361 Views |
February 17, 2017, 03:10:43 pm by MFowler |
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Bias test point....
Started by hesamadman |
8 Replies
3833 Views |
February 16, 2017, 09:24:17 pm by frankenxtein |
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Figuring out powertransformer
Started by Scsoul |
8 Replies
2774 Views |
February 16, 2017, 07:55:29 am by sluckey |
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Marshall 100w oscillates when a loud note is played
Started by Blind Lemon « 1 2 » |
67 Replies
11498 Views |
February 15, 2017, 07:47:59 pm by Blind Lemon |
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how much filtering can a 5Y3 take?
Started by phsyconoodler |
31 Replies
21920 Views |
February 15, 2017, 06:09:39 pm by trobbins |
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16 Replies
9782 Views |
February 15, 2017, 09:42:19 am by gtrplayr1976 |
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MOVED: Building/Using a Listening Amp
Started by Willabe |
0 Replies
1705 Views |
February 14, 2017, 05:25:20 pm by Willabe |
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Ampeg V-4/VT22 Build
Started by pompeiisneaks |
27 Replies
7690 Views |
February 14, 2017, 02:29:19 pm by vibrolax |
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A new twist of a Hoffman PR Type Build
Started by p2pAmps |
9 Replies
2662 Views |
February 14, 2017, 08:53:33 am by p2pAmps |
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14 Replies
5786 Views |
February 13, 2017, 04:19:02 pm by trobbins |
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55 Replies
13764 Views |
February 12, 2017, 11:53:10 pm by SoundmasterG |
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Thin, bare, loose wire coming out of OT
Started by folksnake |
5 Replies
2073 Views |
February 12, 2017, 05:08:04 pm by folksnake |
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9 Replies
3885 Views |
February 12, 2017, 02:36:00 pm by robrob |
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3 Replies
2447 Views |
February 12, 2017, 03:58:40 am by HotBluePlates |
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18 Replies
4524 Views |
February 11, 2017, 04:47:09 pm by treesmoker |
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23 Replies
10194 Views |
February 11, 2017, 01:26:05 pm by PRR |
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Chinese 6L6 5W amp with toroidal PT?
Started by leevc5 |
22 Replies
5767 Views |
February 11, 2017, 10:59:41 am by drgonzonm |
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21 Replies
6665 Views |
February 11, 2017, 01:06:38 am by DummyLoad |
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National Dobro Amplifier
Started by dpm309 |
46 Replies
13276 Views |
February 10, 2017, 11:05:53 am by dpm309 |
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6 Replies
3152 Views |
February 09, 2017, 10:43:00 pm by robrob |
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Bias PS question
Started by kagliostro |
28 Replies
6098 Views |
February 09, 2017, 03:46:11 pm by Ed_Chambley |
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4 Replies
2410 Views |
February 08, 2017, 07:08:59 pm by Justa |
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Finally...
Started by 12AX7 |
11 Replies
3225 Views |
February 08, 2017, 09:06:56 am by 12AX7 |
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7 Replies
3195 Views |
February 08, 2017, 09:05:04 am by FranciscoPerez |
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Dumble clone SE
Started by adamG |
30 Replies
8103 Views |
February 08, 2017, 07:12:32 am by kagliostro |
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5e3s run "hot"?
Started by super&plexi |
10 Replies
3213 Views |
February 08, 2017, 12:26:45 am by super&plexi |
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18 Replies
7718 Views |
February 06, 2017, 07:33:12 pm by robrob |
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Power Tube mismatch and hum
Started by dunner84 |
6 Replies
4413 Views |
February 06, 2017, 05:33:16 pm by HotBluePlates |
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Fuchs Mantis on the bench
Started by pompeiisneaks |
5 Replies
2350 Views |
February 06, 2017, 05:17:16 pm by pompeiisneaks |
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79 Replies
14726 Views |
February 06, 2017, 04:11:44 pm by dunner84 |
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8 Replies
4745 Views |
February 06, 2017, 03:02:10 pm by kagliostro |
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41 Replies
14969 Views |
February 05, 2017, 04:15:31 pm by whoops |
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KT88 PA build
Started by shooter |
34 Replies
7252 Views |
February 05, 2017, 11:48:04 am by shooter |
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7 Replies
3575 Views |
February 05, 2017, 11:34:18 am by frankenxtein |
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Line OT Transformers - Question
Started by kagliostro |
4 Replies
2410 Views |
February 05, 2017, 07:34:01 am by kagliostro |
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Presence circuit
Started by 12AX7 |
3 Replies
1919 Views |
February 04, 2017, 11:51:55 pm by HotBluePlates |
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2 Replies
1684 Views |
February 04, 2017, 04:17:17 pm by Toxophilite |
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Blues Jr conversion
Started by MFowler |
5 Replies
2160 Views |
February 04, 2017, 02:37:48 pm by MFowler |
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37 Replies
8471 Views |
February 04, 2017, 01:38:20 pm by purpletele |
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Negative voltage for el34
Started by fossilshark |
13 Replies
5127 Views |
February 04, 2017, 12:44:14 pm by fossilshark |
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15 Replies
3381 Views |
February 04, 2017, 07:21:21 am by kagliostro |
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Small NOS OT - Question
Started by kagliostro |
29 Replies
5640 Views |
February 03, 2017, 10:13:49 pm by PRR |
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11 Replies
4374 Views |
February 03, 2017, 06:53:07 pm by HotBluePlates |
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