Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 08:59:39 pm | ||
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6.9 VAC on heaters. Is this OK?
Started by nandrewjackson |
10 Replies
4560 Views |
by John |
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20 Replies
8503 Views |
by kagliostro |
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Bias pot questions.
Started by hesamadman |
4 Replies
2480 Views |
by Willabe |
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Most useful amp tools on your bench...
Started by TubeGeek |
34 Replies
9937 Views |
by mrr3000gt |
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31 Replies
8300 Views |
by valco |
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5E11 Bright issue
Started by jukelemon |
5 Replies
2787 Views |
by tubeswell |
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5F6-A Volume Pots
Started by labb |
2 Replies
2232 Views |
by labb |
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princeton build
Started by 12AX7 |
4 Replies
2410 Views |
by 12AX7 |
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EL34 choke requirement for screens
Started by jojokeo |
3 Replies
2604 Views |
by jojokeo |
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harp preamp/impedance circuit
Started by phsyconoodler |
12 Replies
3746 Views |
by tubeswell |
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Fender Twin Reverb Problem
Started by DrResponsible |
5 Replies
3198 Views |
by stratele52 |
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Reducing distortion on Silver Jubilee
Started by TIMBO |
4 Replies
2931 Views |
by TIMBO |
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Help with National Tremo Tone
Started by jukelemon |
10 Replies
4914 Views |
by PRR |
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1965 Princeton Reverb Trem very weak
Started by jukelemon |
5 Replies
2947 Views |
by plexi50 |
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11 Replies
4313 Views |
by Geezer |
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10 Replies
6698 Views |
by jim |
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HOW do I make a parametric EQ?
Started by Glennjeff |
15 Replies
5735 Views |
by Glennjeff |
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4 Replies
5318 Views |
by SoundmasterG |
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D'Mars ODS EL84 amp
Started by tubenit |
43 Replies
11035 Views |
by Glennjeff |
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Gibson GA45-RVT Saturn PT replacement.
Started by BigE |
4 Replies
3858 Views |
by PRR |
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Built a Custom Champ for Christmas
Started by SILVERGUN |
19 Replies
7490 Views |
by jojokeo |
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2 Replies
2114 Views |
by firemedic |
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Octal Reverb Preamp
Started by LooseChange |
4 Replies
3179 Views |
by LooseChange |
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55 Replies
15170 Views |
by Custom_Amp_30 |
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Fender Bassman 10 issue
Started by bassisst90 |
3 Replies
2594 Views |
by bassisst90 |
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5F6-A resistor question
Started by labb |
6 Replies
3202 Views |
by PRR |
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Function of extra 10k Resistor on the PI
Started by Gary_S |
14 Replies
7566 Views |
by PRR |
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Gibson Scout Tremolo Distorted
Started by 3choplex |
9 Replies
3722 Views |
by 3choplex |
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6G16 Trem too fast
Started by Sandoz6G16 |
4 Replies
2632 Views |
by Sandoz6G16 |
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Power tube heater glowing to bright
Started by navdave |
12 Replies
5432 Views |
by stratele52 |
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MOVED: what amp?
Started by tubenit |
0 Replies
1776 Views |
by tubenit |
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Converted Bassman AB165 to 6G6-B
Started by TubeGeek |
4 Replies
3313 Views |
by TubeGeek |
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8 Replies
3617 Views |
by PRR |
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Gibson ga 15rvt Tremelo Problems
Started by guyf |
2 Replies
2245 Views |
by jjasilli |
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JJ 6L6 observation
Started by 12AX7 |
7 Replies
4041 Views |
by Ed_Chambley |
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Badcat Hotcat Preamp
Started by TIMBO |
10 Replies
5574 Views |
by TIMBO |
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Silver Jubilee
Started by TIMBO |
6 Replies
2977 Views |
by DummyLoad |
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5F6-A question
Started by labb |
4 Replies
2637 Views |
by TIMBO |
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6 Replies
3608 Views |
by Tone Junkie |
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Current Flow Through This Rectifier
Started by Gary_S |
9 Replies
4008 Views |
by tubeswell |
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Battery trick on the heaters
Started by Tone Junkie |
15 Replies
5327 Views |
by Tone Junkie |
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11 Replies
6013 Views |
by eleventeen |
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valve ratings
Started by neil.dolan |
17 Replies
5459 Views |
by neil.dolan |
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29 Replies
7455 Views |
by jjasilli |
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13 Replies
8709 Views |
by frank57 |
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68 Super Reverb in for overhaul
Started by punkykatt |
18 Replies
6876 Views |
by Ed_Chambley |
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2 Replies
2550 Views |
by jazbo8 |
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4 Replies
2675 Views |
by plexi50 |
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Weak sounding Ampeg J12-R
Started by dude |
29 Replies
10092 Views |
by Glennjeff |
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component ID help?
Started by John |
2 Replies
1961 Views |
by John |
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