Welcome To the Hoffman Amplifiers Forum
March 11, 2026, 04:00:37 pm
Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 04:00:37 pm | ||
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| dogburn, passaloutre, Glenn and 98 Guests are viewing this board. | ||||
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22 Replies
6634 Views |
February 04, 2022, 05:16:14 amby Bieworm |
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Capacitor value advice?
Started by timmyjoe |
3 Replies
3116 Views |
February 04, 2022, 12:04:57 am by PRR |
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6 Replies
4168 Views |
February 03, 2022, 02:06:38 pm by Latole |
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Sizing a reservoir Cap
Started by joesatch |
2 Replies
3013 Views |
February 03, 2022, 09:45:24 am by joesatch |
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3 Replies
3352 Views |
February 03, 2022, 09:31:01 am by vampwizzard |
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Ampeg VT40 weird standby switch
Started by jewishjay |
5 Replies
3340 Views |
February 02, 2022, 08:34:19 pm by jewishjay |
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4 Replies
4076 Views |
February 02, 2022, 06:07:35 am by jackplug1 |
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5F10 build completed
Started by mresistor |
6 Replies
4564 Views |
February 01, 2022, 07:13:38 pm by mresistor |
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Dual Lite rotary switch pops
Started by mresistor |
20 Replies
5749 Views |
February 01, 2022, 11:46:11 am by mresistor |
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5 Replies
3493 Views |
February 01, 2022, 09:54:47 am by joesatch |
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Shop Fox Box Pan Brake
Started by Pollys13a |
0 Replies
3024 Views |
February 01, 2022, 09:42:07 am by Pollys13a |
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VOX AC10-Twin Regrets
Started by zozoe |
0 Replies
2819 Views |
February 01, 2022, 09:11:10 am by zozoe |
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How to Wire Raw Boost with Footswitch.. ?
Started by cboysen |
4 Replies
4175 Views |
February 01, 2022, 09:07:21 am by angelodp |
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OT wiring help
Started by KimboDb |
5 Replies
3439 Views |
January 31, 2022, 09:46:23 pm by KimboDb |
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Picking the Right Power Transformer
Started by scstill |
39 Replies
13872 Views |
January 31, 2022, 04:47:50 pm by sluckey |
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potential Hoffman Princeton Reverb build
Started by joesatch |
3 Replies
3087 Views |
January 31, 2022, 12:11:22 am by PRR |
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10 Replies
4594 Views |
January 31, 2022, 12:06:03 am by PRR |
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16 Replies
5418 Views |
January 30, 2022, 09:07:41 pm by thetragichero |
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Reduce PI B+ voltage
Started by joesatch |
11 Replies
4747 Views |
January 29, 2022, 10:19:46 pm by joesatch |
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2 Replies
3332 Views |
January 29, 2022, 06:43:37 pm by PharmRock |
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Webster PA amps with Dynamotor
Started by bmccowan |
8 Replies
3758 Views |
January 29, 2022, 03:15:14 pm by PRR |
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Plexi 6V6 With Bootstrap
Started by MiniVanMan |
5 Replies
3401 Views |
January 29, 2022, 02:02:03 pm by pdf64 |
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Neil Young Whizzer Servicing
Started by RadioComm |
0 Replies
3103 Views |
January 29, 2022, 05:25:47 am by RadioComm |
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37 Replies
11260 Views |
January 28, 2022, 05:54:02 pm by Willabe |
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23 Replies
5760 Views |
January 28, 2022, 04:53:16 pm by TurboGuitarMelton |
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5 Replies
4401 Views |
January 28, 2022, 04:38:21 pm by jordan86 |
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Filter capacitors a few questions
Started by Johnnydoright |
3 Replies
2929 Views |
January 28, 2022, 03:34:11 pm by PRR |
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Filament transformer advice needed
Started by jackplug1 |
3 Replies
2963 Views |
January 28, 2022, 02:42:52 pm by jackplug1 |
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Fender Vibratone & Leslie 16 crossover
Started by osing |
1 Replies
5126 Views |
January 28, 2022, 10:44:52 am by osing |
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100 iron in 50 watt build?
Started by joesatch |
5 Replies
3151 Views |
January 28, 2022, 09:18:16 am by shooter |
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Faraday cage on chassis open ends?
Started by PharmRock |
7 Replies
3810 Views |
January 28, 2022, 07:53:54 am by PharmRock |
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EF86 vibroverb
Started by valvetones |
13 Replies
4815 Views |
January 27, 2022, 10:42:08 pm by valvetones |
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13 Replies
4646 Views |
January 27, 2022, 09:49:06 am by Willabe |
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4 Replies
4676 Views |
January 27, 2022, 01:05:37 am by Grees01 |
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JTM45 Schematic and Layout
Started by PharmRock |
15 Replies
13179 Views |
January 26, 2022, 10:02:27 pm by Grees01 |
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Ultra Linear hypothetical question
Started by Jonas |
3 Replies
2885 Views |
January 26, 2022, 03:15:41 am by pdf64 |
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37 Replies
10954 Views |
January 25, 2022, 08:00:38 pm by bmccowan |
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MOD Epiphone Valve Jr Help!!
Started by Travis8 |
5 Replies
3316 Views |
January 25, 2022, 09:43:34 am by PharmRock |
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Magnatone Varsity capacitor confusion
Started by mellotron |
6 Replies
3814 Views |
January 24, 2022, 10:10:29 pm by mellotron |
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SE circuit
Started by Stuff4bikes |
17 Replies
5207 Views |
January 24, 2022, 09:49:09 pm by Stuff4bikes |
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14 Replies
4240 Views |
January 24, 2022, 11:59:38 am by PharmRock |
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Phase Question
Started by Grees01 |
10 Replies
3994 Views |
January 24, 2022, 01:02:45 am by Grees01 |
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6G16 vibroverb layout discrepancy
Started by valvetones |
6 Replies
3717 Views |
January 23, 2022, 01:24:17 pm by valvetones |
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Unusual Pentode preamp.
Started by Cliff Rogers |
1 Replies
3102 Views |
January 23, 2022, 08:11:58 am by uki |
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Hot Rod DeVille rebuild
Started by bigOandrew |
19 Replies
7208 Views |
January 22, 2022, 07:57:16 pm by glass54 |
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Dual SE & PP Amp - Help with power supply
Started by _Steve |
12 Replies
4988 Views |
January 22, 2022, 11:33:27 am by kagliostro |
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Horrible hum cased by?
Started by timmyjoe |
21 Replies
6802 Views |
January 21, 2022, 04:56:16 pm by acheld |
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Component selection - PRRI rebuild
Started by mellotron |
4 Replies
2904 Views |
January 20, 2022, 08:39:22 pm by PRR |
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Master volume on Matchless Clubman
Started by frankenxtein |
10 Replies
3881 Views |
January 20, 2022, 06:23:51 pm by frankenxtein |
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Hand Wired vs Printed Circuit Board.
Started by Grees01 |
27 Replies
8355 Views |
January 20, 2022, 07:55:15 am by kagliostro |
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