Welcome To the Hoffman Amplifiers Forum
September 07, 2025, 08:33:43 am
Welcome To the Hoffman Amplifiers ForumSeptember 07, 2025, 08:33:43 am | ||
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Testing for Oscillations
Started by silverfox |
4 Replies
2135 Views |
February 01, 2016, 10:41:59 amby shooter |
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help to decide on next project.
Started by arjepsen |
2 Replies
1725 Views |
February 01, 2016, 08:02:52 am by arjepsen |
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31 Replies
7039 Views |
February 01, 2016, 08:01:39 am by p2pAmps |
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11 Replies
2792 Views |
January 31, 2016, 08:46:14 pm by goldstache |
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Quick Mojo759 Transformer question
Started by plaidzebra |
8 Replies
3420 Views |
January 31, 2016, 05:20:40 pm by EL34 |
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Late 1960s Fender Deluxe Reverb Guitar Amp Issues
Started by captainclock « 1 2 » |
53 Replies
12031 Views |
January 31, 2016, 03:09:52 pm by captainclock |
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RCA SA 354 PA.
Started by DummyLoad |
5 Replies
2738 Views |
January 31, 2016, 02:00:59 pm by eleventeen |
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2 Replies
2814 Views |
January 31, 2016, 01:47:33 pm by kagliostro |
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New on the bench-1966 Vibrolux
Started by rosincore |
8 Replies
2600 Views |
January 31, 2016, 04:59:13 am by rosincore |
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15 Replies
4879 Views |
January 30, 2016, 10:45:10 pm by jazbo8 |
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coupling cap question
Started by Bub |
4 Replies
1892 Views |
January 29, 2016, 07:15:30 pm by Bub |
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Fender 100 watt half power switch
Started by TerryD |
23 Replies
6216 Views |
January 29, 2016, 06:32:59 pm by TerryD |
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B&H 302 B+ problem
Started by Paul1453 |
5 Replies
3446 Views |
January 29, 2016, 12:53:05 pm by Paul1453 |
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25 Replies
7379 Views |
January 29, 2016, 10:53:04 am by Mike_J |
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Concentric 250K 25K pots?
Started by p2pAmps |
6 Replies
4091 Views |
January 29, 2016, 09:34:14 am by mresistor |
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13 Replies
4810 Views |
January 28, 2016, 09:47:45 pm by PeaceMaker |
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53 Replies
13790 Views |
January 28, 2016, 05:41:14 pm by printer2 |
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'65 Fender Deluxe Reissue white noise
Started by dubele |
1 Replies
1757 Views |
January 28, 2016, 06:48:24 am by sluckey |
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Now.... My Twin-Completed
Started by p2pAmps |
39 Replies
7851 Views |
January 27, 2016, 10:36:12 pm by bnwitt |
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2 Replies
1618 Views |
January 27, 2016, 03:42:30 pm by Woodsmoke |
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3 Replies
1914 Views |
January 27, 2016, 11:21:39 am by Mike_J |
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10 Replies
3384 Views |
January 27, 2016, 09:48:32 am by drgonzonm |
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output transformer broken?
Started by prune |
4 Replies
2923 Views |
January 26, 2016, 06:06:53 pm by Paul1453 |
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14 Replies
4822 Views |
January 26, 2016, 04:08:43 pm by Ed_Chambley |
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Another Ground and Hiss Thread
Started by fiftynine |
5 Replies
1954 Views |
January 26, 2016, 02:47:36 pm by jjasilli |
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1973 silverface Deluxe
Started by rosincore |
4 Replies
2331 Views |
January 26, 2016, 04:56:02 am by rosincore |
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Is anyone familiar with these capacitors?
Started by Mike_J |
3 Replies
1967 Views |
January 25, 2016, 08:40:23 pm by HotBluePlates |
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Preamp Heater Wires
Started by fiftynine |
10 Replies
5029 Views |
January 25, 2016, 06:04:21 pm by shooter |
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7 Replies
16994 Views |
January 25, 2016, 03:54:12 pm by kagliostro |
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Having a faceplate made
Started by dude |
10 Replies
3970 Views |
January 25, 2016, 12:50:46 pm by birt |
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small crappy 10W SS amp conversion
Started by Paul1453 |
17 Replies
3634 Views |
January 25, 2016, 12:45:14 pm by Paul1453 |
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Shared Cathode R-C Networks?
Started by Fresh_Start |
4 Replies
2462 Views |
January 25, 2016, 11:42:55 am by jjasilli |
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Dumble mods to AB763 circuits
Started by dunner84 |
5 Replies
17007 Views |
January 25, 2016, 07:58:28 am by Mike_J |
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11 Replies
3659 Views |
January 25, 2016, 12:52:55 am by kagliostro |
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Fender reverb in both channels methods
Started by p2pAmps |
27 Replies
12101 Views |
January 24, 2016, 08:22:33 pm by Mike_J |
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Presence / NFB matched to output jack
Started by jojokeo |
20 Replies
6889 Views |
January 24, 2016, 07:07:18 pm by jojokeo |
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10 Replies
2814 Views |
January 24, 2016, 05:14:39 pm by kagliostro |
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7 Replies
5914 Views |
January 24, 2016, 10:29:49 am by Paul1453 |
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1 Replies
1921 Views |
January 23, 2016, 04:45:03 pm by DummyLoad |
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question on biasing a Marshall JCM 800
Started by markmalin |
8 Replies
4898 Views |
January 23, 2016, 02:57:54 pm by mresistor |
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Oliver Sound G-300 Amp Head.....
Started by Jack_Hester |
40 Replies
9864 Views |
January 22, 2016, 05:18:15 pm by Jack_Hester |
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4 Replies
3437 Views |
January 22, 2016, 03:49:50 pm by PRR |
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2 Replies
2220 Views |
January 22, 2016, 03:43:39 pm by chocopower |
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13 Replies
3775 Views |
January 22, 2016, 08:59:38 am by hesamadman |
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A confusing power tube configuration
Started by kagliostro |
4 Replies
2000 Views |
January 21, 2016, 12:26:43 pm by kagliostro |
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Charred OT Primary at Tube Base
Started by fiftynine |
8 Replies
2783 Views |
January 21, 2016, 08:29:41 am by fiftynine |
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0 Replies
1988 Views |
January 20, 2016, 07:46:49 pm by silverfox |
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53 Replies
10949 Views |
January 20, 2016, 08:25:07 am by rosincore |
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18 watt Marshall type circuit.
Started by guitardude57 |
24 Replies
10337 Views |
January 19, 2016, 10:03:52 pm by drew |
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5 Replies
2394 Views |
January 19, 2016, 03:35:13 pm by MFowler |
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