Welcome To the Hoffman Amplifiers ForumApril 27, 2026, 06:33:06 pm | ||
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Sunn Solarus solid state power supply
Started by navdave |
14 Replies
7789 Views |
by navdave |
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25 Replies
14219 Views |
by MZANNETOS |
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power supply filtering question
Started by thermion |
3 Replies
4635 Views |
by HotBluePlates |
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Good Morning Gut Shots
Started by TeslaRect5150 |
0 Replies
2818 Views |
by TeslaRect5150 |
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testing bias/lightbulb limiter
Started by jeff |
2 Replies
3102 Views |
by stratele52 |
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one two testing REDPLATE pics
Started by Colas LeGrippa |
2 Replies
3781 Views |
by Colas LeGrippa |
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LOUD hum, with master volume turned up
Started by Gainzilla |
21 Replies
16111 Views |
by HotBluePlates |
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High headroom and overdrive in the same amp
Started by Leevi |
9 Replies
5481 Views |
by Ritchie200 |
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low watt harp amp
Started by John |
6 Replies
5172 Views |
by John |
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Preamp tube shields
Started by markvalluzzi |
2 Replies
3135 Views |
by EL34 |
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7 Replies
4665 Views |
by Willabe |
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arcing between plate and heater
Started by Colas LeGrippa |
4 Replies
4379 Views |
by Colas LeGrippa |
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Reverb Tanks
Started by TIMBO |
4 Replies
3683 Views |
by terminalgs |
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What do you think of this idea
Started by TIMBO |
13 Replies
6252 Views |
by John |
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Can a 4-Lug Marshall Jack be Fixed?
Started by jjasilli |
3 Replies
3189 Views |
by jjasilli |
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8 Replies
4680 Views |
by Jack1962 |
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Vox Reverb Unit question
Started by kagliostro |
4 Replies
3042 Views |
by kagliostro |
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200 volt B+ drop!?
Started by navdave |
29 Replies
11280 Views |
by stratele52 |
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skylark GA5T question
Started by shooter |
2 Replies
2925 Views |
by shooter |
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13 Replies
7373 Views |
by Gainzilla |
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Power Transformer
Started by TIMBO |
15 Replies
5542 Views |
by tubeswell |
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77 Replies
21790 Views |
by EL34 |
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More on heaters
Started by Ed_Chambley |
47 Replies
17907 Views |
by Willabe |
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11 Replies
9985 Views |
by Jack1962 |
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2 heads on stage
Started by Madison |
9 Replies
5619 Views |
by Madison |
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Raised heater CT voltage?
Started by Voxbox |
6 Replies
4147 Views |
by Voxbox |
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Have to build or go nuts
Started by stevehoover |
3 Replies
3259 Views |
by stevehoover |
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D13 SJT 10/20 Biasing
Started by NotSure |
1 Replies
3143 Views |
by HotBluePlates |
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Not sure if voltages are correct ?
Started by dude |
4 Replies
3776 Views |
by dude |
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Old Mallory Caps
Started by TerryD |
18 Replies
9097 Views |
by EL34 |
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4 Replies
5207 Views |
by kagliostro |
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Some jargon definition please
Started by Ross |
5 Replies
3484 Views |
by TIMBO |
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Adding a Dwell pot to reverb
Started by TIMBO |
2 Replies
3396 Views |
by TIMBO |
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18 Replies
10411 Views |
by davew |
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DC Heater Circuit Question
Started by Ed_Chambley |
18 Replies
8815 Views |
by shooter |
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Magnatone M4
Started by plexi50 |
6 Replies
4378 Views |
by plexi50 |
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TremRevalo unit
Started by tubenit |
7 Replies
3985 Views |
by jjasilli |
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11 Replies
5788 Views |
by kagliostro |
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tone stack question
Started by shooter |
6 Replies
3925 Views |
by HotBluePlates |
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13 Replies
8017 Views |
by HotBluePlates |
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12 Replies
8263 Views |
by Willabe |
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5E3 Franken Clone
Started by plexi50 |
3 Replies
3510 Views |
by plexi50 |
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AA764 Champ diy bug help!!!!!
Started by goldstache |
4 Replies
2599 Views |
by Willabe |
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Canada Amp Project
Started by TubeGeek |
28 Replies
8932 Views |
by Tom_Hull |
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12AX7 max input signal voltage ?
Started by Colas LeGrippa |
12 Replies
13527 Views |
by jojokeo |
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2 Replies
2980 Views |
by chocopower |
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Please help
Started by dscottguitars |
2 Replies
2652 Views |
by stratele52 |
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Schem question
Started by J Rindt |
15 Replies
5427 Views |
by EL34 |
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96 Replies
47153 Views |
by kagliostro |
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Antiquing Aluminium tube cans
Started by Voxbox |
7 Replies
3746 Views |
by EL34 |
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