Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 03:12:23 pm | ||
| Subject / Started by | Replies / Views | Last post ![]() |
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| Glenn and 42 Guests are viewing this board. | ||||
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voltage doubler with 7591 tubes
Started by Tom_Hull |
23 Replies
9427 Views |
by Tom_Hull |
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Challenger CHB 35
Started by plexi50 |
12 Replies
8914 Views |
by jjasilli |
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13 Replies
6239 Views |
by DummyLoad |
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Twin Reverb Filter cap board
Started by Guitarzan |
8 Replies
7559 Views |
by Guitarzan |
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unity gain?
Started by shooter |
8 Replies
3624 Views |
by sluckey |
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fender princeton 5f2-a trouble
Started by djsadowsk |
19 Replies
6294 Views |
by djsadowsk |
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Diving into a vintage SVT
Started by nateflanigan |
24 Replies
9136 Views |
by nateflanigan |
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Ways to get more voltage to V1?
Started by 12AX7 |
30 Replies
12070 Views |
by Ed_Chambley |
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29 Replies
10019 Views |
by Ed_Chambley |
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Another Traynor YSR1
Started by plexi50 |
2 Replies
2940 Views |
by plexi50 |
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"original" 18 watt on the bench
Started by Madison |
29 Replies
9742 Views |
by Madison |
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8 Replies
3684 Views |
by sluckey |
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Paraphase Tone Control
Started by RicharD |
22 Replies
8742 Views |
by KeithR |
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Trem in nondescript Japanese amp
Started by AZJimC |
9 Replies
4556 Views |
by sluckey |
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9 Replies
5893 Views |
by kagliostro |
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5 Replies
4036 Views |
by lego4040 |
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Amp power down question.
Started by alerich |
4 Replies
3384 Views |
by alerich |
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Impractical question
Started by shooter |
5 Replies
3413 Views |
by sluckey |
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1964 Fender Deluxe
Started by Johns62312 |
21 Replies
7349 Views |
by Johns62312 |
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16 Replies
7351 Views |
by SoundmasterG |
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6V6GT plate voltage
Started by TIMBO |
13 Replies
11834 Views |
by TIMBO |
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3 Replies
3527 Views |
by TubeGeek |
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Ampeg Heritage B-15 schematic
Started by dynaman1 |
10 Replies
7509 Views |
by kagliostro |
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MIG 60 PT question - Schematic here
Started by kagliostro |
3 Replies
4472 Views |
by alerich |
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Hoffman AC30 voltage
Started by labb |
15 Replies
6505 Views |
by labb |
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Unused transformer leads
Started by macula56 |
8 Replies
4148 Views |
by shoggoth |
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Ultra Rectifier Board
Started by macula56 |
11 Replies
5376 Views |
by sluckey |
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28 Replies
27369 Views |
by tubeswell |
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Time for a Marshall plan
Started by bnwitt |
11 Replies
5262 Views |
by Ed_Chambley |
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crate blue voodoo 120 bias problem
Started by danger-russ |
10 Replies
11135 Views |
by plexi50 |
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help with a Hoffman AC30
Started by JCleghorn1 |
15 Replies
5252 Views |
by tubenit |
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Using Chassis as Ground?
Started by ioplex |
26 Replies
11120 Views |
by Ghetto_Soundwave |
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14 Replies
5151 Views |
by TIMBO |
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16 Replies
6151 Views |
by HotBluePlates |
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Sweet Hammond score
Started by Slimtim |
9 Replies
4280 Views |
by Ritchie200 |
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3 Replies
3132 Views |
by HotBluePlates |
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PT getting hot
Started by Ed_Chambley |
16 Replies
6460 Views |
by DummyLoad |
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Do you think this would work
Started by Leevi |
29 Replies
7923 Views |
by Leevi |
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9 Replies
7302 Views |
by Jack1962 |
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Output tube(s) replacement
Started by LHPcope |
31 Replies
10386 Views |
by Jack1962 |
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MESA BOOGIE shit fan removal
Started by Colas LeGrippa |
18 Replies
9078 Views |
by stratele52 |
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12ax7 safe voltage
Started by Boone |
5 Replies
3302 Views |
by tubeswell |
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strange output transformers
Started by dscottguitars |
22 Replies
9675 Views |
by dscottguitars |
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Silvertone 1484 reverb
Started by Tiny_Daddy |
13 Replies
11521 Views |
by zarfnober |
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?s about the output of AC568 bassman
Started by nateflanigan |
2 Replies
4398 Views |
by nateflanigan |
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Power Chord Strain Relief w/ 16 AWG Cord?
Started by ioplex |
5 Replies
4885 Views |
by ioplex |
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gain pot values
Started by 12AX7 |
4 Replies
9297 Views |
by jojokeo |
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KT 66'S IN 67' BFSR
Started by muzacman02 |
4 Replies
3050 Views |
by HotBluePlates |
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AC30 build red plating, loud hum
Started by glassesnvests |
14 Replies
5789 Views |
by sluckey |
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5 Replies
2781 Views |
by silverfox |
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