Welcome To the Hoffman Amplifiers ForumFebruary 27, 2026, 08:35:38 pm | ||
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22 Replies
14983 Views |
by simonallaway |
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6 Replies
6806 Views |
by Ritchie200 |
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Totem Pole
Started by duke of earl |
16 Replies
9683 Views |
by duke of earl |
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6 Replies
10447 Views |
by Jack1962 |
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15 Replies
9190 Views |
by TubeGeek |
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6550 bias in ultraliniear connection
Started by Bub |
11 Replies
11496 Views |
by Bub |
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to drop voltage or not?
Started by bnew63 |
8 Replies
5796 Views |
by bnew63 |
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19 Replies
11968 Views |
by imaradiostar |
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6 Replies
6682 Views |
by bigdaddy |
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Reverb driver
Started by Leevi |
18 Replies
10635 Views |
by imaradiostar |
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The "Opus" Amp??
Started by TIMBO |
18 Replies
8959 Views |
by TIMBO |
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Looking for a good tube mic preamp schematic
Started by kagliostro « 1 2 » |
76 Replies
47685 Views |
by kagliostro |
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18 Replies
16069 Views |
by Fresh_Start |
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Grounding- AB763 AB165 AA864 etc.
Started by J Rindt |
5 Replies
8628 Views |
by Fresh_Start |
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12ax7 Phase inverter voltages
Started by Bub |
3 Replies
11565 Views |
by Bub |
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Where to get a roach?
Started by tubesornothing |
3 Replies
4550 Views |
by Shrapnel |
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PP OPT in a SE Amp
Started by Trevor_Long |
7 Replies
6031 Views |
by bigdaddy |
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6G6-A Bassman
Started by J Rindt |
7 Replies
6590 Views |
by Shrapnel |
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Pro Reverb cap job
Started by gbeard |
2 Replies
4289 Views |
by alerich |
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22 Replies
11582 Views |
by SoundmasterG |
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high low jack question ?
Started by john_t |
2 Replies
3983 Views |
by john_t |
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Destructive mistakes
Started by atmars |
31 Replies
13580 Views |
by jojokeo |
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high end parts
Started by bnew63 |
26 Replies
10816 Views |
by bigdaddy |
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Dating a DSL JCM 2000
Started by Backwoods Joe |
12 Replies
7276 Views |
by Backwoods Joe |
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2 Replies
4750 Views |
by phsyconoodler |
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disturbance when turning the pot
Started by Leevi |
15 Replies
8814 Views |
by tubeswell |
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Cap in Stout amp
Started by Mats |
4 Replies
4308 Views |
by Mats |
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don't know opt's output
Started by bnew63 |
46 Replies
16474 Views |
by Shrapnel |
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single speaker out of phase??!??
Started by tubesornothing |
13 Replies
9778 Views |
by P Batty |
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Critique this schematic...please.
Started by bigsbybender |
8 Replies
6135 Views |
by terminalgs |
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what would happen ga 20
Started by john_t |
8 Replies
6135 Views |
by panhead |
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106 Replies
40153 Views |
by bigdaddy |
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11 Replies
7820 Views |
by Structo |
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Tremolux 6G9 adjustable bias
Started by skyclad |
1 Replies
4301 Views |
by tubeswell |
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23 Replies
15014 Views |
by HotBluePlates |
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uk transformers
Started by cigarboxblues |
28 Replies
11701 Views |
by PRR |
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VHT Special 6 - What a bargain!
Started by chocopower |
25 Replies
14860 Views |
by tubesornothing |
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tubes with 117 volt heaters
Started by Jack1962 |
8 Replies
7500 Views |
by Tiny_Daddy |
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Horizontal EL84?
Started by Ritchie200 |
11 Replies
8300 Views |
by FYL |
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Low End Cutting Out
Started by xkaynex |
4 Replies
4806 Views |
by tubesornothing |
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18 Replies
10586 Views |
by simonallaway |
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Tube recomendations for a Bassman
Started by pbman1953 |
15 Replies
8496 Views |
by pbman1953 |
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tremolos... 5G9, 5E9 and 5F11!
Started by bruno |
6 Replies
9393 Views |
by HotBluePlates |
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8 Replies
6786 Views |
by Tiny_Daddy |
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got hold of an old amp chassis
Started by cigarboxblues |
6 Replies
6012 Views |
by cigarboxblues |
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1 Replies
4964 Views |
by darkbluemurder |
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18 watt build red-plating
Started by Jennings |
7 Replies
6808 Views |
by Ritchie200 |
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Fender Deluxe ID
Started by Jack1962 |
9 Replies
6443 Views |
by Jack1962 |
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2 Replies
5436 Views |
by punkykatt |
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tweed vibrolux (5E11, 5F11), tremolo...
Started by bruno |
6 Replies
8625 Views |
by tubeswell |
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