Welcome To the Hoffman Amplifiers ForumApril 27, 2026, 03:29:10 am | ||
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Concentric 250K 25K pots?
Started by p2pAmps |
6 Replies
6118 Views |
by mresistor |
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13 Replies
6771 Views |
by PeaceMaker |
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53 Replies
18793 Views |
by printer2 |
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'65 Fender Deluxe Reissue white noise
Started by dubele |
1 Replies
3145 Views |
by sluckey |
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Now.... My Twin-Completed
Started by p2pAmps |
39 Replies
11945 Views |
by bnwitt |
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2 Replies
2909 Views |
by Woodsmoke |
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3 Replies
3336 Views |
by Mike_J |
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10 Replies
4913 Views |
by drgonzonm |
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output transformer broken?
Started by prune |
4 Replies
4422 Views |
by Paul1453 |
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14 Replies
7024 Views |
by Ed_Chambley |
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Another Ground and Hiss Thread
Started by fiftynine |
5 Replies
3443 Views |
by jjasilli |
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1973 silverface Deluxe
Started by rosincore |
4 Replies
3582 Views |
by rosincore |
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Is anyone familiar with these capacitors?
Started by Mike_J |
3 Replies
3087 Views |
by HotBluePlates |
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Preamp Heater Wires
Started by fiftynine |
10 Replies
7076 Views |
by shooter |
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7 Replies
19505 Views |
by kagliostro |
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Having a faceplate made
Started by dude |
10 Replies
6007 Views |
by birt |
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small crappy 10W SS amp conversion
Started by Paul1453 |
17 Replies
5913 Views |
by Paul1453 |
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Shared Cathode R-C Networks?
Started by Fresh_Start |
4 Replies
3958 Views |
by jjasilli |
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Dumble mods to AB763 circuits
Started by dunner84 |
5 Replies
19780 Views |
by Mike_J |
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11 Replies
5060 Views |
by kagliostro |
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Fender reverb in both channels methods
Started by p2pAmps |
27 Replies
14561 Views |
by Mike_J |
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Presence / NFB matched to output jack
Started by jojokeo |
20 Replies
9859 Views |
by jojokeo |
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10 Replies
4221 Views |
by kagliostro |
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7 Replies
7061 Views |
by Paul1453 |
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1 Replies
2958 Views |
by DummyLoad |
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question on biasing a Marshall JCM 800
Started by markmalin |
8 Replies
6890 Views |
by mresistor |
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Oliver Sound G-300 Amp Head.....
Started by Jack_Hester |
40 Replies
12604 Views |
by Jack_Hester |
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4 Replies
4818 Views |
by PRR |
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2 Replies
3212 Views |
by chocopower |
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13 Replies
5371 Views |
by hesamadman |
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A confusing power tube configuration
Started by kagliostro |
4 Replies
2884 Views |
by kagliostro |
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Charred OT Primary at Tube Base
Started by fiftynine |
8 Replies
4661 Views |
by fiftynine |
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0 Replies
2903 Views |
by silverfox |
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53 Replies
15882 Views |
by rosincore |
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18 watt Marshall type circuit.
Started by guitardude57 |
24 Replies
13141 Views |
by drew |
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5 Replies
3499 Views |
by MFowler |
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4 Replies
3825 Views |
by Fresh_Start |
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16 Replies
11303 Views |
by Paul1453 |
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1 channel AB763 chassis size
Started by dunner84 |
9 Replies
4089 Views |
by DummyLoad |
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New 5f2a build oscillation Issue
Started by dunner84 |
36 Replies
10583 Views |
by Paul1453 |
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Fender reverb unit
Started by Big chief |
6 Replies
3775 Views |
by Mike_J |
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Sparks flying in power tubes...
Started by markmalin |
27 Replies
16887 Views |
by markmalin |
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31 Replies
12642 Views |
by silverfox |
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Salvaged Transformer Help
Started by ncusack |
7 Replies
5321 Views |
by eleventeen |
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746 Replies
268290 Views |
by sluckey |
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18 Replies
16882 Views |
by jane_t steele |
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Matchless Spitfire Build Troubleshooting
Started by silendt |
31 Replies
17783 Views |
by MFowler |
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4 gain stage comparison
Started by tubenit |
12 Replies
6646 Views |
by PRR |
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4 Replies
3230 Views |
by bbbbass |
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princeton reverb AA1164 new build
Started by khansen810 |
3 Replies
2985 Views |
by EL34 |
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