Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 02:18:04 pm | ||
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Adding Filter Nodes?
Started by dankinzelman |
16 Replies
5278 Views |
by dankinzelman |
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5F1 No Sound Problem-It just quit!
Started by wsscott |
26 Replies
7370 Views |
by wsscott |
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Randall RM-100 Impedance switch
Started by JustMike |
3 Replies
2621 Views |
by EL34 |
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1 Replies
2555 Views |
by PharmRock |
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14 Replies
5212 Views |
by Latole |
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Where to ground the first filter stage.
Started by Mike_J |
23 Replies
6095 Views |
by tubeswell |
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Choosing Power Transformers
Started by acheld |
7 Replies
4073 Views |
by acheld |
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0 Replies
1908 Views |
by Mike_J |
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1977 Princeton Reverb PT failure?
Started by wsscott |
23 Replies
5104 Views |
by wsscott |
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6 Replies
2965 Views |
by Mike_J |
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New most terrible job ever.
Started by Mike_J |
9 Replies
3702 Views |
by Mike_J |
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14 Replies
3422 Views |
by d95err |
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Post PI Master Volume Coupling Cap
Started by scstill |
2 Replies
1965 Views |
by thetragichero |
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B&H Filmosound 626 amp
Started by Zonnebloem |
2 Replies
2221 Views |
by Zonnebloem |
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2 Cathode Followers on the same tube?
Started by dsmith9 |
5 Replies
2591 Views |
by tubeswell |
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Reverb pedal jack
Started by dude |
6 Replies
3224 Views |
by sluckey |
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Doug's shielded wire
Started by munkeyboy |
13 Replies
5510 Views |
by EL34 |
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67 Replies
13679 Views |
by wittyjeff |
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4 Replies
2257 Views |
by walkman |
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14 Replies
5716 Views |
by gitarzysta |
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2 Replies
3654 Views |
by sluckey |
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New Amp Introduction—Brown Junior
Started by brewdude |
7 Replies
2568 Views |
by wittyjeff |
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Global Negitive Feedback with Top Cut?
Started by DuaneOh |
6 Replies
3082 Views |
by wittyjeff |
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6K6GT push pull limits
Started by brewdude |
17 Replies
5188 Views |
by brewdude |
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Plastic Toroidal Xfmr mount?
Started by JustMike |
1 Replies
1842 Views |
by thetragichero |
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Need help.
Started by Mike_J |
8 Replies
2653 Views |
by glass54 |
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How to test/repair speaker?
Started by BobL |
8 Replies
3222 Views |
by acheld |
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Filament wiring gauge
Started by Graydigger |
37 Replies
11046 Views |
by scstill |
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6 Replies
3317 Views |
by tubeswell |
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Suppliers (as of 2021)
Started by munkeyboy |
24 Replies
11012 Views |
by vampwizzard |
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14 Replies
5131 Views |
by BobL |
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Tagboard question
Started by dude |
11 Replies
3272 Views |
by dude |
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UA OX catching amp on fire
Started by British1011 |
5 Replies
3091 Views |
by British1011 |
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Planning my next build (simplified AC15ish)
Started by aon |
12 Replies
3836 Views |
by aon |
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line out for single ended tube amp
Started by mazzgreg |
2 Replies
2037 Views |
by PRR |
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Confused again.
Started by Mike_J |
19 Replies
5086 Views |
by Mike_J |
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Negative Feedback, Where To Get It From?
Started by DuaneOh |
8 Replies
4029 Views |
by DuaneOh |
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Ampeg B 12 XT
Started by Big chief |
8 Replies
3193 Views |
by Big chief |
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1959 Supro Coronado 1690T on the bench
Started by TubeGeek |
16 Replies
9013 Views |
by PRR |
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Cranked Amp "Chirping"?
Started by jordan86 |
4 Replies
3303 Views |
by SILVERGUN |
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Spicemodel for reverb tanks
Started by PRR |
0 Replies
2426 Views |
by PRR |
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Screen and Plate Switch pop in AC15 build
Started by shaun |
12 Replies
3921 Views |
by HotBluePlates |
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How long do Edcor transformers take?
Started by steveo7868 |
11 Replies
4024 Views |
by munkeyboy |
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7 Replies
2763 Views |
by tomof63 |
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1 Replies
1877 Views |
by thetragichero |
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1 Replies
2803 Views |
by sluckey |
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Incoming Amp-PRS 25th Anniversary
Started by JustMike |
10 Replies
3950 Views |
by shooter |
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switching channels with relays questions
Started by Bieworm |
5 Replies
2777 Views |
by Bieworm |
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20 Replies
6438 Views |
by DougGuy |
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Single Input 5f6a Questions.
Started by thebard |
4 Replies
2215 Views |
by thebard |
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