Welcome To the Hoffman Amplifiers Forum
October 22, 2025, 07:33:35 pm
Welcome To the Hoffman Amplifiers ForumOctober 22, 2025, 07:33:35 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 72 Guests are viewing this board. | ||||
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Refurbishing a Peavey Artist 240
Started by olliu |
6 Replies
3966 Views |
October 08, 2022, 03:37:59 pmby shooter |
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Input resistance measurements
Started by Mr.Death |
12 Replies
3607 Views |
October 08, 2022, 03:23:21 pm by pdf64 |
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22 Replies
5312 Views |
October 07, 2022, 11:19:50 pm by Willabe |
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Reverb drivers transformers
Started by Bieworm |
1 Replies
1975 Views |
October 07, 2022, 07:13:21 pm by thetragichero |
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28 Replies
5167 Views |
October 07, 2022, 04:07:25 pm by Williamblake |
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Which preamps?
Started by maltikeks |
12 Replies
3500 Views |
October 07, 2022, 04:00:36 pm by Williamblake |
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Where Does the Signal Go?
Started by clyde |
6 Replies
2447 Views |
October 06, 2022, 04:21:34 pm by pdf64 |
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12AT7 Single ended
Started by walkman |
7 Replies
3218 Views |
October 06, 2022, 11:58:48 am by PRR |
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Bias Voltage Issue
Started by imgumby001 |
10 Replies
3185 Views |
October 05, 2022, 12:55:44 pm by imgumby001 |
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5w amp scheme with reverb?
Started by rafaelctt |
45 Replies
9227 Views |
October 05, 2022, 11:57:32 am by rafaelctt |
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15 Replies
4703 Views |
October 05, 2022, 10:52:19 am by sluckey |
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5E3 with Pre and PI series heater wiring
Started by scstill |
1 Replies
2082 Views |
October 04, 2022, 06:11:05 pm by pdf64 |
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Tube Guitar Preamp with a Chip Amp
Started by dbishopbliss |
7 Replies
3897 Views |
October 04, 2022, 03:50:24 pm by dbishopbliss |
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Master volume on Musicmaster amp
Started by isaac_teller |
9 Replies
3429 Views |
October 03, 2022, 12:01:07 pm by PRR |
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My Vox Ac15 playing
Started by rafaelctt |
32 Replies
5956 Views |
October 03, 2022, 11:36:46 am by rafaelctt |
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19 Replies
6054 Views |
October 03, 2022, 09:44:16 am by jacobarber |
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6G16 Build
Started by p2pAmps |
3 Replies
2086 Views |
October 02, 2022, 07:02:09 pm by bmccowan |
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2 Replies
2098 Views |
October 02, 2022, 05:11:00 am by kagliostro |
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Gibson GA-8
Started by Leevi |
9 Replies
5318 Views |
October 01, 2022, 10:28:24 pm by Leevi |
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How to make my amp safe (shock)
Started by 12AX7 |
16 Replies
4581 Views |
October 01, 2022, 08:36:05 pm by PRR |
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Harmonic tremolo noise issue
Started by Esquirefreak |
7 Replies
2730 Views |
October 01, 2022, 12:38:59 pm by Esquirefreak |
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Cliff style jack on new amp build
Started by JPK |
10 Replies
4268 Views |
September 30, 2022, 11:25:36 am by JPK |
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12 Replies
6693 Views |
September 30, 2022, 12:54:41 am by Tone Junkie |
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120hz hum only in phase inverter
Started by thetragichero |
37 Replies
7298 Views |
September 29, 2022, 03:58:36 pm by thetragichero |
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Soldano Astroverb Circuit Questions
Started by W5FH |
11 Replies
3842 Views |
September 29, 2022, 03:19:42 pm by sluckey |
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Marshall DSL 401 biasing question
Started by JZRepair |
12 Replies
3889 Views |
September 29, 2022, 02:25:57 pm by JZRepair |
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G3 to ground
Started by knebiter |
3 Replies
1957 Views |
September 28, 2022, 11:52:45 pm by PRR |
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DR One-channel - No Reverb
Started by Lectroid |
15 Replies
3853 Views |
September 28, 2022, 12:57:52 pm by Lectroid |
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type of potentiometers
Started by rafaelctt |
4 Replies
2828 Views |
September 28, 2022, 10:04:26 am by rafaelctt |
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4 Replies
3228 Views |
September 27, 2022, 09:50:53 pm by PRR |
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Coupling capacitors for V1 V2.
Started by Mr.Death |
11 Replies
4262 Views |
September 27, 2022, 01:37:52 pm by Mr.Death |
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14 Replies
3278 Views |
September 26, 2022, 10:40:11 pm by PRR |
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Ward Airline GIM 9171A
Started by BruceWA |
4 Replies
2537 Views |
September 26, 2022, 02:05:45 pm by BruceWA |
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Rickenbacker M12 Schematic
Started by dpm309 |
4 Replies
2447 Views |
September 24, 2022, 10:30:59 pm by dpm309 |
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10 Replies
4430 Views |
September 24, 2022, 03:11:05 pm by 12AX7 |
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5e3 Hoffman Layout build issue
Started by Rafiote |
7 Replies
2581 Views |
September 24, 2022, 01:03:29 pm by Rafiote |
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2 Replies
2434 Views |
September 24, 2022, 04:48:29 am by kagliostro |
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28 Replies
5457 Views |
September 23, 2022, 12:53:22 pm by shooter |
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144 Replies
27228 Views |
September 22, 2022, 10:22:41 am by scottcurry13 |
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11 Replies
3289 Views |
September 22, 2022, 10:06:41 am by Lectroid |
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B15N Preamp DI layout
Started by Jatchley |
7 Replies
6070 Views |
September 22, 2022, 09:27:11 am by sluckey |
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1 Replies
3214 Views |
September 22, 2022, 09:06:16 am by Lectroid |
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83 Replies
24709 Views |
September 21, 2022, 04:27:24 am by kr2p |
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Circuit switching
Started by Zenabi |
5 Replies
2269 Views |
September 20, 2022, 04:25:32 pm by Zenabi |
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Question about bias resistors
Started by Mr.Death |
16 Replies
4099 Views |
September 20, 2022, 04:05:10 pm by sluckey |
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Ampeg tranny black cover epxy
Started by Colas LeGrippa |
7 Replies
2897 Views |
September 20, 2022, 10:47:23 am by vampwizzard |
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I wonder if this is normal...
Started by Bieworm |
1 Replies
1863 Views |
September 20, 2022, 04:44:55 am by sluckey |
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5f1 Champ with a master Volume
Started by silat |
24 Replies
8167 Views |
September 19, 2022, 04:00:12 pm by silat |
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6G15 with Tremolo
Started by Leevi |
26 Replies
5757 Views |
September 19, 2022, 07:55:08 am by ac427v |
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The Eris 18 Amplifier
Started by darryl |
14 Replies
6188 Views |
September 18, 2022, 09:40:59 pm by Cliff Rogers |
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