Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 05:20:17 am | ||
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Filmosound OT PT Wire Gauge
Started by jonathan_kea |
1 Replies
2368 Views |
by HotBluePlates |
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RR763-based build
Started by aon |
4 Replies
3651 Views |
by jordan86 |
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21 Replies
9453 Views |
by chrisd |
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New Build Marshall 1959 Superlead
Started by kwm488 |
12 Replies
9315 Views |
by sluckey |
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13 Replies
9972 Views |
by mresistor |
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PP 25L6 amp worth the effort?
Started by munkeyboy |
15 Replies
9311 Views |
by Steve_P |
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Ampeg B12-XT
Started by Big chief |
4 Replies
3054 Views |
by Big chief |
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10 Replies
4117 Views |
by pdf64 |
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National Amp 1949
Started by Big chief |
17 Replies
4923 Views |
by valcotone |
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Blowing Fuses Unless I Use A Variac ??
Started by Lectroid |
1 Replies
2486 Views |
by tubeswell |
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Loud amp! I need more control.
Started by raza |
5 Replies
3286 Views |
by SnickSound |
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Bandmaster 6G7A grid stoppers
Started by Diverted |
1 Replies
2720 Views |
by sluckey |
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Power Transformer for Sano B18W
Started by eurekaiv |
12 Replies
4018 Views |
by shooter |
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Any reason this wouldn't work?
Started by 12AX7 |
24 Replies
8535 Views |
by Pwurso |
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Ampeg Portaflex B12-XY ?s
Started by waldner |
2 Replies
2686 Views |
by waldner |
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Wards GIM 9171A...circuit analysis?
Started by BrianS |
14 Replies
5750 Views |
by sluckey |
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Proper 6V6 Bias for 5E3
Started by scstill |
10 Replies
5826 Views |
by sluckey |
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Ever Tried A Reverse Bright Cap?
Started by jordan86 |
7 Replies
4656 Views |
by 2deaf |
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transformer question S-6424
Started by Bieworm |
3 Replies
3162 Views |
by SnickSound |
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10 Replies
4897 Views |
by tubeswell |
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Cause of high plate voltage on 12ax7
Started by jordan86 |
23 Replies
7714 Views |
by jordan86 |
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0 Replies
2563 Views |
by Bieworm |
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Kustom tube amp not working
Started by gdamato |
13 Replies
5299 Views |
by gdamato |
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2 Replies
2797 Views |
by PRR |
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Dull/snubber caps in preamp
Started by ampnewbie |
3 Replies
4024 Views |
by jojokeo |
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Cap replacement question
Started by pbman1953 |
11 Replies
3736 Views |
by pbman1953 |
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More AO44 fun
Started by jojokeo |
4 Replies
3051 Views |
by jojokeo |
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Trem-O-Nator Poll and projects
Started by sluckey |
29 Replies
10420 Views |
by sluckey |
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1969/70 Vibrochamp high note modulation
Started by Voxbox |
7 Replies
3763 Views |
by 66Strat |
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1M Gain pot / voltage divider question
Started by Bieworm |
1 Replies
2426 Views |
by jordan86 |
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Channel switching 2204?
Started by JustMike |
1 Replies
2477 Views |
by SnickSound |
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1 Replies
2717 Views |
by PRR |
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8 Replies
4221 Views |
by Mike_J |
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6 Replies
3593 Views |
by isaac_teller |
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Dropping B+ secondary of 5e3
Started by fpolak |
25 Replies
8288 Views |
by fpolak |
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26 Replies
8540 Views |
by munkeyboy |
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Power transformer bolt is stripped.
Started by Mike_J |
22 Replies
8140 Views |
by Mike_J |
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16 Replies
5769 Views |
by acheld |
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RR Blackvibe schematic error?
Started by mikhett |
4 Replies
2903 Views |
by PRR |
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more gain ideas
Started by Bieworm |
5 Replies
3537 Views |
by Bieworm |
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JTM45 Phase Inverter Mods
Started by sgbrewing |
25 Replies
8871 Views |
by 2deaf |
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POP between two presence circuits.
Started by raza |
12 Replies
4071 Views |
by PRR |
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Testing a power transformer under load?
Started by eurekaiv |
9 Replies
4697 Views |
by Pietro |
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Valco Supreme
Started by isaac_teller |
3 Replies
3122 Views |
by isaac_teller |
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14 Replies
5921 Views |
by glass54 |
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Voice of music model 136
Started by goldstache |
7 Replies
3889 Views |
by goldstache |
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Epiphone Electar
Started by LazarusLong |
25 Replies
7597 Views |
by bmccowan |
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5 Replies
4403 Views |
by MrsColumbo |
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Fixed bias 5D3
Started by Leevi |
5 Replies
3149 Views |
by Leevi |
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24 Replies
8695 Views |
by sluckey |
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