Welcome To the Hoffman Amplifiers ForumMarch 12, 2026, 04:32:39 pm | ||
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wiring up power trany with 5v ct to 5u4gb
Started by chip |
3 Replies
4447 Views |
by PRR |
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Pentode vs Triode connection
Started by Leevi |
3 Replies
6378 Views |
by Leevi |
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since this seems to be SE week...
Started by DummyLoad |
13 Replies
5920 Views |
by DummyLoad |
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Safely lower B+
Started by gtrbryan |
7 Replies
4386 Views |
by stratele52 |
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6AQ5 Single Ended
Started by gtrbryan |
9 Replies
18321 Views |
by HotBluePlates |
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UMMMMMMMMMMMMMM!!
Started by TIMBO |
17 Replies
8575 Views |
by kagliostro |
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Dukane Gets MV
Started by Platefire |
6 Replies
3816 Views |
by Platefire |
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3 Replies
3789 Views |
by kagliostro |
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9 Replies
4857 Views |
by henry909 |
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volt meter on cathode
Started by John |
9 Replies
4366 Views |
by John |
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10 Replies
5217 Views |
by kagliostro |
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800vac supply on PT secondary
Started by unclerny |
23 Replies
8680 Views |
by unclerny |
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What's the bias dealio ?!
Started by worth |
3 Replies
3161 Views |
by tubeswell |
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Princeton / adding loop Complete
Started by Ed_Chambley |
24 Replies
11476 Views |
by Ed_Chambley |
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using a magic eye as an audio amplifier
Started by birt |
16 Replies
11798 Views |
by tubeswell |
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Reverb Driver Question
Started by zendragon63 |
3 Replies
4351 Views |
by PRR |
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6C10 style plug
Started by proaudioguy |
14 Replies
7558 Views |
by proaudioguy |
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SE EL34 design considerations
Started by panhead |
6 Replies
4586 Views |
by jojokeo |
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Peavey Heritage
Started by Pappie |
2 Replies
3300 Views |
by plexi50 |
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Signal bleeding through
Started by jeff |
22 Replies
9285 Views |
by jeff |
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6973 tube anyone?
Started by terminalgs |
2 Replies
4212 Views |
by gtrbryan |
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Capacitor Substitution Sanity Check
Started by cgiesel1 |
3 Replies
4624 Views |
by cgiesel1 |
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3 Replies
4932 Views |
by kagliostro |
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stupid bias question
Started by worth |
1 Replies
2717 Views |
by EL34 |
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Tweakin' a Kalamazoo M2 design...
Started by lowatter |
21 Replies
9444 Views |
by sluckey |
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mid pot.. linear or audio taper ?
Started by worth |
6 Replies
6639 Views |
by alerich |
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9 Replies
6453 Views |
by kagliostro |
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No Heater Voltage Bassman Head
Started by 7string |
11 Replies
6781 Views |
by Ed_Chambley |
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Home-brew pot question.
Started by DummyLoad |
9 Replies
4200 Views |
by DummyLoad |
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Gas Cooker
Started by cfreeborn |
6 Replies
4200 Views |
by HotBluePlates |
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11 Replies
6683 Views |
by terminalgs |
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Traynor YSR1 1968 Find w/ YF 410 Cab
Started by plexi50 |
20 Replies
9654 Views |
by plexi50 |
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15 Replies
8017 Views |
by Geezer |
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Capacitor purpose question
Started by JonO |
11 Replies
6360 Views |
by PRR |
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5E3 box, 6g3 tone stack
Started by Ed_Chambley |
2 Replies
5789 Views |
by Ed_Chambley |
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PT voltage
Started by billcreller |
5 Replies
4115 Views |
by billcreller |
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Weird tone in VOX AC30
Started by Leevi |
4 Replies
3397 Views |
by bnwitt |
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Hissing JJs (6v6s)
Started by proaudioguy |
23 Replies
9897 Views |
by tubenit |
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10 Replies
11353 Views |
by billcreller |
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Premier 90 Reverb humm issue
Started by LooseChange |
2 Replies
4758 Views |
by HotBluePlates |
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Black-flip
Started by CraigB |
31 Replies
12598 Views |
by CraigB |
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Parallel EL34, SE 12 watts
Started by Ed_Chambley |
20 Replies
17210 Views |
by Ed_Chambley |
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10 Replies
9098 Views |
by spacelabstudio |
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5 Replies
6512 Views |
by HotBluePlates |
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Component identification
Started by six el six |
3 Replies
3639 Views |
by Ed_Chambley |
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Stand Alone Reverb with bias vary Trem?
Started by Willabe |
14 Replies
7501 Views |
by Willabe |
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bias advice
Started by dscottguitars |
8 Replies
4626 Views |
by dscottguitars |
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112 Replies
39764 Views |
by Willabe |
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Two amps under one hood.
Started by jeff |
12 Replies
7021 Views |
by jeff |
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Saved a Leslie 122 - Now what?
Started by tyru007 |
20 Replies
10943 Views |
by proaudioguy |
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