Welcome To the Hoffman Amplifiers Forum
December 08, 2025, 07:07:40 pm
Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 07:07:40 pm | ||
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| Bugman3183, Zenamps and 129 Guests are viewing this board. | ||||
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5C5 Pro amp schematic puzzle.
Started by zapped |
8 Replies
4467 Views |
February 01, 2016, 06:58:19 pmby TubeGeek |
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Testing for Oscillations
Started by silverfox |
4 Replies
2545 Views |
February 01, 2016, 10:41:59 am by shooter |
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help to decide on next project.
Started by arjepsen |
2 Replies
2178 Views |
February 01, 2016, 08:02:52 am by arjepsen |
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31 Replies
8130 Views |
February 01, 2016, 08:01:39 am by p2pAmps |
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11 Replies
3416 Views |
January 31, 2016, 08:46:14 pm by goldstache |
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Quick Mojo759 Transformer question
Started by plaidzebra |
8 Replies
3957 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
14145 Views |
January 31, 2016, 03:09:52 pm by captainclock |
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RCA SA 354 PA.
Started by DummyLoad |
5 Replies
3235 Views |
January 31, 2016, 02:00:59 pm by eleventeen |
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2 Replies
3313 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
3227 Views |
January 31, 2016, 04:59:13 am by rosincore |
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15 Replies
5572 Views |
January 30, 2016, 10:45:10 pm by jazbo8 |
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coupling cap question
Started by Bub |
4 Replies
2285 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
7431 Views |
January 29, 2016, 06:32:59 pm by TerryD |
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B&H 302 B+ problem
Started by Paul1453 |
5 Replies
4137 Views |
January 29, 2016, 12:53:05 pm by Paul1453 |
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25 Replies
9173 Views |
January 29, 2016, 10:53:04 am by Mike_J |
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Concentric 250K 25K pots?
Started by p2pAmps |
6 Replies
4813 Views |
January 29, 2016, 09:34:14 am by mresistor |
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13 Replies
5511 Views |
January 28, 2016, 09:47:45 pm by PeaceMaker |
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53 Replies
15653 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
2205 Views |
January 28, 2016, 06:48:24 am by sluckey |
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Now.... My Twin-Completed
Started by p2pAmps |
39 Replies
9341 Views |
January 27, 2016, 10:36:12 pm by bnwitt |
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2 Replies
2042 Views |
January 27, 2016, 03:42:30 pm by Woodsmoke |
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3 Replies
2401 Views |
January 27, 2016, 11:21:39 am by Mike_J |
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10 Replies
3931 Views |
January 27, 2016, 09:48:32 am by drgonzonm |
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output transformer broken?
Started by prune |
4 Replies
3456 Views |
January 26, 2016, 06:06:53 pm by Paul1453 |
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14 Replies
5689 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
2473 Views |
January 26, 2016, 02:47:36 pm by jjasilli |
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1973 silverface Deluxe
Started by rosincore |
4 Replies
2770 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
2345 Views |
January 25, 2016, 08:40:23 pm by HotBluePlates |
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Preamp Heater Wires
Started by fiftynine |
10 Replies
5758 Views |
January 25, 2016, 06:04:21 pm by shooter |
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7 Replies
17978 Views |
January 25, 2016, 03:54:12 pm by kagliostro |
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Having a faceplate made
Started by dude |
10 Replies
4713 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
4394 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
2954 Views |
January 25, 2016, 11:42:55 am by jjasilli |
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Dumble mods to AB763 circuits
Started by dunner84 |
5 Replies
18029 Views |
January 25, 2016, 07:58:28 am by Mike_J |
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11 Replies
4121 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
12990 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
7963 Views |
January 24, 2016, 07:07:18 pm by jojokeo |
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10 Replies
3293 Views |
January 24, 2016, 05:14:39 pm by kagliostro |
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7 Replies
6319 Views |
January 24, 2016, 10:29:49 am by Paul1453 |
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1 Replies
2266 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
5628 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
10838 Views |
January 22, 2016, 05:18:15 pm by Jack_Hester |
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4 Replies
4000 Views |
January 22, 2016, 03:49:50 pm by PRR |
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2 Replies
2568 Views |
January 22, 2016, 03:43:39 pm by chocopower |
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13 Replies
4363 Views |
January 22, 2016, 08:59:38 am by hesamadman |
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A confusing power tube configuration
Started by kagliostro |
4 Replies
2295 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
3511 Views |
January 21, 2016, 08:29:41 am by fiftynine |
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0 Replies
2322 Views |
January 20, 2016, 07:46:49 pm by silverfox |
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53 Replies
12787 Views |
January 20, 2016, 08:25:07 am by rosincore |
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18 watt Marshall type circuit.
Started by guitardude57 |
24 Replies
11426 Views |
January 19, 2016, 10:03:52 pm by drew |
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