Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 11:05:48 am | ||
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Another Ground and Hiss Thread
Started by fiftynine |
5 Replies
2856 Views |
by jjasilli |
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1973 silverface Deluxe
Started by rosincore |
4 Replies
3054 Views |
by rosincore |
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Is anyone familiar with these capacitors?
Started by Mike_J |
3 Replies
2611 Views |
by HotBluePlates |
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Preamp Heater Wires
Started by fiftynine |
10 Replies
6257 Views |
by shooter |
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7 Replies
18470 Views |
by kagliostro |
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Having a faceplate made
Started by dude |
10 Replies
5232 Views |
by birt |
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small crappy 10W SS amp conversion
Started by Paul1453 |
17 Replies
4957 Views |
by Paul1453 |
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Shared Cathode R-C Networks?
Started by Fresh_Start |
4 Replies
3331 Views |
by jjasilli |
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Dumble mods to AB763 circuits
Started by dunner84 |
5 Replies
18667 Views |
by Mike_J |
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11 Replies
4486 Views |
by kagliostro |
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Fender reverb in both channels methods
Started by p2pAmps |
27 Replies
13578 Views |
by Mike_J |
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Presence / NFB matched to output jack
Started by jojokeo |
20 Replies
8716 Views |
by jojokeo |
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10 Replies
3636 Views |
by kagliostro |
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7 Replies
6596 Views |
by Paul1453 |
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1 Replies
2501 Views |
by DummyLoad |
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question on biasing a Marshall JCM 800
Started by markmalin |
8 Replies
6109 Views |
by mresistor |
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Oliver Sound G-300 Amp Head.....
Started by Jack_Hester |
40 Replies
11590 Views |
by Jack_Hester |
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4 Replies
4348 Views |
by PRR |
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2 Replies
2821 Views |
by chocopower |
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13 Replies
4793 Views |
by hesamadman |
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A confusing power tube configuration
Started by kagliostro |
4 Replies
2521 Views |
by kagliostro |
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Charred OT Primary at Tube Base
Started by fiftynine |
8 Replies
3986 Views |
by fiftynine |
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0 Replies
2517 Views |
by silverfox |
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53 Replies
13917 Views |
by rosincore |
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18 watt Marshall type circuit.
Started by guitardude57 |
24 Replies
12106 Views |
by drew |
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5 Replies
3038 Views |
by MFowler |
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4 Replies
3367 Views |
by Fresh_Start |
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16 Replies
10153 Views |
by Paul1453 |
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1 channel AB763 chassis size
Started by dunner84 |
9 Replies
3598 Views |
by DummyLoad |
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New 5f2a build oscillation Issue
Started by dunner84 |
36 Replies
9221 Views |
by Paul1453 |
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Fender reverb unit
Started by Big chief |
6 Replies
3287 Views |
by Mike_J |
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Sparks flying in power tubes...
Started by markmalin |
27 Replies
15645 Views |
by markmalin |
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31 Replies
11153 Views |
by silverfox |
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Salvaged Transformer Help
Started by ncusack |
7 Replies
4716 Views |
by eleventeen |
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746 Replies
244722 Views |
by sluckey |
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18 Replies
15965 Views |
by jane_t steele |
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Matchless Spitfire Build Troubleshooting
Started by silendt |
31 Replies
15850 Views |
by MFowler |
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4 gain stage comparison
Started by tubenit |
12 Replies
5781 Views |
by PRR |
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4 Replies
2770 Views |
by bbbbass |
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princeton reverb AA1164 new build
Started by khansen810 |
3 Replies
2660 Views |
by EL34 |
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Speaker jack mod
Started by Jerzey2222 |
16 Replies
4412 Views |
by MFowler |
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Some pointers on my breadboard?
Started by hesamadman |
5 Replies
2934 Views |
by Paul1453 |
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Input jacks Fender style
Started by uki |
10 Replies
8324 Views |
by uki |
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Bogen MX30A tweaker amp
Started by glassesnvests |
19 Replies
8602 Views |
by PRR |
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Fixed bias help
Started by goldstache |
6 Replies
2700 Views |
by goldstache |
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OP Amp EQ circuit for Tube Amp
Started by silverfox |
12 Replies
5793 Views |
by silverfox |
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Whistling causes
Started by Paul1453 |
22 Replies
7420 Views |
by Paul1453 |
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One Tube 6GW8 Reverb
Started by TIMBO |
2 Replies
5245 Views |
by tubenit |
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Excessive heat and venting
Started by hesamadman |
18 Replies
6029 Views |
by PRR |
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2 Replies
2278 Views |
by Skip Hagey |
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