Welcome To the Hoffman Amplifiers Forum
December 08, 2025, 02:13:48 pm
Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 02:13:48 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 89 Guests are viewing this board. | ||||
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Trafo Orientation Check
Started by Jatchley |
12 Replies
4075 Views |
November 28, 2020, 04:36:47 pmby trobbins |
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Confused on the 12BY7a
Started by 1blueheron |
10 Replies
6881 Views |
November 28, 2020, 04:27:22 pm by 1blueheron |
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Heaters question
Started by Colas LeGrippa |
38 Replies
7160 Views |
November 28, 2020, 05:26:16 am by Bieworm |
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18W Plexi with EL84s?
Started by mcamelo |
25 Replies
7949 Views |
November 27, 2020, 03:32:09 pm by mcamelo |
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8 Replies
2987 Views |
November 27, 2020, 12:29:25 pm by pdf64 |
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20 Replies
7274 Views |
November 27, 2020, 10:45:57 am by PRR |
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20 Replies
5977 Views |
November 27, 2020, 03:12:44 am by Latole |
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Marshall 1960s super bass schematic
Started by isaac_teller |
3 Replies
4584 Views |
November 26, 2020, 04:01:14 am by Latole |
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70 Replies
15157 Views |
November 25, 2020, 04:02:27 pm by Patrik |
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7 Replies
3602 Views |
November 25, 2020, 12:40:52 pm by whalecalls |
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Brown Concert hiss
Started by jrkrauss |
5 Replies
2088 Views |
November 25, 2020, 08:38:16 am by Latole |
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Microphonic ECC83 12AX7
Started by SoundCity85 |
13 Replies
3909 Views |
November 25, 2020, 01:07:17 am by SoundCity85 |
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JTM45 build OT quandry
Started by Blueboozer |
2 Replies
1859 Views |
November 24, 2020, 10:24:58 pm by High Voltage |
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Switch to replace jumpering inputs?
Started by luthierwnc |
6 Replies
2801 Views |
November 24, 2020, 07:13:10 am by Latole |
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10 Replies
3824 Views |
November 24, 2020, 02:30:29 am by pdf64 |
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6 Replies
2909 Views |
November 22, 2020, 08:53:45 pm by MonoPoly |
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Real-life load-lines
Started by PRR |
0 Replies
1673 Views |
November 22, 2020, 07:20:59 pm by PRR |
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Electrolytic capacitor question.
Started by Mike_J |
24 Replies
7154 Views |
November 22, 2020, 02:49:03 pm by mresistor |
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Rocker switch light doesn’t work
Started by ericlen838 |
11 Replies
3527 Views |
November 22, 2020, 02:47:00 pm by 2deaf |
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21 Replies
8331 Views |
November 22, 2020, 11:02:17 am by Mike_J |
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13 Replies
3564 Views |
November 21, 2020, 03:36:42 am by Sansteeth |
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PI/NFB hum on a Laney GH100L guitar amp
Started by zkrx |
7 Replies
4561 Views |
November 20, 2020, 11:24:26 am by zkrx |
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4 Replies
2751 Views |
November 20, 2020, 10:21:59 am by aabbs20 |
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Transformer question
Started by Kcz5o |
3 Replies
2366 Views |
November 20, 2020, 09:23:12 am by pdf64 |
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Tube Depot has wrong reverb driver batch
Started by Jatchley |
3 Replies
2049 Views |
November 19, 2020, 10:11:29 pm by vampwizzard |
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Thoughts on this 45 amp?
Started by Gwcoty |
5 Replies
2306 Views |
November 19, 2020, 06:13:26 pm by sluckey |
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Layout for small DR single channel
Started by acheld |
8 Replies
2929 Views |
November 19, 2020, 11:14:14 am by Bieworm |
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10 Replies
3452 Views |
November 18, 2020, 04:00:55 pm by steveo7868 |
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4 Replies
2134 Views |
November 17, 2020, 09:57:27 pm by JeffAlanAmps |
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Inrush Current Limiting
Started by jjasilli |
29 Replies
13086 Views |
November 17, 2020, 09:06:47 pm by acheld |
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6g2 build: 290PAZ ok?
Started by ampnewbie |
3 Replies
2000 Views |
November 17, 2020, 04:06:13 pm by Bieworm |
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5 Replies
4035 Views |
November 17, 2020, 10:22:40 am by bmccowan |
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22 Replies
7981 Views |
November 17, 2020, 08:21:22 am by HotBluePlates |
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Swapping tube rectifiers
Started by Sonny ReVerb |
2 Replies
2381 Views |
November 16, 2020, 04:42:19 pm by Sonny ReVerb |
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Adding effects loop onboard
Started by Vlada |
9 Replies
4899 Views |
November 16, 2020, 02:38:55 pm by 2deaf |
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15 Replies
4277 Views |
November 16, 2020, 08:39:44 am by JB |
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Re: Adding 1-tube reverb
Started by mebond11 |
2 Replies
2705 Views |
November 15, 2020, 10:49:05 pm by mebond11 |
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Any Dallas area Techs here?
Started by mresistor |
1 Replies
1781 Views |
November 15, 2020, 05:37:42 pm by SILVERGUN |
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3 Replies
2769 Views |
November 15, 2020, 02:47:25 pm by pdf64 |
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5 Replies
2822 Views |
November 15, 2020, 02:44:12 pm by jim |
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Old Peavey Classic Series VT PSU & Iron
Started by JustMike |
31 Replies
8026 Views |
November 15, 2020, 12:49:39 pm by PRR |
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Univox U-1246 Plate Voltage.
Started by Jatchley |
3 Replies
2328 Views |
November 15, 2020, 04:06:34 am by Latole |
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Harvard 5f10 build
Started by jewishjay |
29 Replies
8148 Views |
November 14, 2020, 06:30:25 pm by jewishjay |
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Harsh treble in active tone stack
Started by shaun |
48 Replies
10444 Views |
November 13, 2020, 07:19:29 pm by 2deaf |
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Fender Service Parts List 1
Started by concertamp64 |
10 Replies
3006 Views |
November 13, 2020, 04:18:54 pm by concertamp64 |
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27 Replies
5569 Views |
November 13, 2020, 01:53:47 pm by Joel in Texas |
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Vibro Champ barn find re-cap
Started by vampwizzard |
10 Replies
3421 Views |
November 13, 2020, 11:02:28 am by dude |
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10 Replies
3596 Views |
November 13, 2020, 10:20:14 am by Bieworm |
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Modded Brownface Princeton 6G2 Circuit
Started by TubeJunkie |
9 Replies
6663 Views |
November 12, 2020, 06:53:37 pm by TubeJunkie |
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82 Replies
13194 Views |
November 12, 2020, 05:41:08 pm by Joel in Texas |
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