Welcome To the Hoffman Amplifiers Forum
September 06, 2025, 01:05:12 pm
Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 01:05:12 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 32 Guests are viewing this board. | ||||
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Confused on the 12BY7a
Started by 1blueheron |
10 Replies
5980 Views |
November 28, 2020, 04:27:22 pmby 1blueheron |
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Heaters question
Started by Colas LeGrippa |
38 Replies
6177 Views |
November 28, 2020, 05:26:16 am by Bieworm |
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18W Plexi with EL84s?
Started by mcamelo |
25 Replies
7177 Views |
November 27, 2020, 03:32:09 pm by mcamelo |
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8 Replies
2451 Views |
November 27, 2020, 12:29:25 pm by pdf64 |
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20 Replies
6401 Views |
November 27, 2020, 10:45:57 am by PRR |
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20 Replies
5096 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
4008 Views |
November 26, 2020, 04:01:14 am by Latole |
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70 Replies
12807 Views |
November 25, 2020, 04:02:27 pm by Patrik |
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7 Replies
3155 Views |
November 25, 2020, 12:40:52 pm by whalecalls |
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Brown Concert hiss
Started by jrkrauss |
5 Replies
1840 Views |
November 25, 2020, 08:38:16 am by Latole |
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Microphonic ECC83 12AX7
Started by SoundCity85 |
13 Replies
3314 Views |
November 25, 2020, 01:07:17 am by SoundCity85 |
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JTM45 build OT quandry
Started by Blueboozer |
2 Replies
1687 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
2230 Views |
November 24, 2020, 07:13:10 am by Latole |
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10 Replies
3220 Views |
November 24, 2020, 02:30:29 am by pdf64 |
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6 Replies
2531 Views |
November 22, 2020, 08:53:45 pm by MonoPoly |
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Real-life load-lines
Started by PRR |
0 Replies
1402 Views |
November 22, 2020, 07:20:59 pm by PRR |
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Electrolytic capacitor question.
Started by Mike_J |
24 Replies
6068 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
3158 Views |
November 22, 2020, 02:47:00 pm by 2deaf |
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21 Replies
7432 Views |
November 22, 2020, 11:02:17 am by Mike_J |
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13 Replies
3009 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
3955 Views |
November 20, 2020, 11:24:26 am by zkrx |
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4 Replies
2373 Views |
November 20, 2020, 10:21:59 am by aabbs20 |
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Transformer question
Started by Kcz5o |
3 Replies
2157 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
1691 Views |
November 19, 2020, 10:11:29 pm by vampwizzard |
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Thoughts on this 45 amp?
Started by Gwcoty |
5 Replies
1958 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
2467 Views |
November 19, 2020, 11:14:14 am by Bieworm |
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10 Replies
3056 Views |
November 18, 2020, 04:00:55 pm by steveo7868 |
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4 Replies
1803 Views |
November 17, 2020, 09:57:27 pm by JeffAlanAmps |
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Inrush Current Limiting
Started by jjasilli |
29 Replies
11560 Views |
November 17, 2020, 09:06:47 pm by acheld |
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6g2 build: 290PAZ ok?
Started by ampnewbie |
3 Replies
1715 Views |
November 17, 2020, 04:06:13 pm by Bieworm |
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5 Replies
3584 Views |
November 17, 2020, 10:22:40 am by bmccowan |
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22 Replies
7124 Views |
November 17, 2020, 08:21:22 am by HotBluePlates |
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Swapping tube rectifiers
Started by Sonny ReVerb |
2 Replies
1999 Views |
November 16, 2020, 04:42:19 pm by Sonny ReVerb |
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Adding effects loop onboard
Started by Vlada |
9 Replies
4203 Views |
November 16, 2020, 02:38:55 pm by 2deaf |
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15 Replies
3711 Views |
November 16, 2020, 08:39:44 am by JB |
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Re: Adding 1-tube reverb
Started by mebond11 |
2 Replies
2432 Views |
November 15, 2020, 10:49:05 pm by mebond11 |
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Any Dallas area Techs here?
Started by mresistor |
1 Replies
1508 Views |
November 15, 2020, 05:37:42 pm by SILVERGUN |
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3 Replies
2324 Views |
November 15, 2020, 02:47:25 pm by pdf64 |
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5 Replies
2461 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
6775 Views |
November 15, 2020, 12:49:39 pm by PRR |
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Univox U-1246 Plate Voltage.
Started by Jatchley |
3 Replies
1927 Views |
November 15, 2020, 04:06:34 am by Latole |
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Harvard 5f10 build
Started by jewishjay |
29 Replies
7016 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
8652 Views |
November 13, 2020, 07:19:29 pm by 2deaf |
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Fender Service Parts List 1
Started by concertamp64 |
10 Replies
2529 Views |
November 13, 2020, 04:18:54 pm by concertamp64 |
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27 Replies
4735 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
2949 Views |
November 13, 2020, 11:02:28 am by dude |
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10 Replies
3135 Views |
November 13, 2020, 10:20:14 am by Bieworm |
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Modded Brownface Princeton 6G2 Circuit
Started by TubeJunkie |
9 Replies
5804 Views |
November 12, 2020, 06:53:37 pm by TubeJunkie |
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82 Replies
10932 Views |
November 12, 2020, 05:41:08 pm by Joel in Texas |
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12 Replies
3211 Views |
November 12, 2020, 03:47:25 am by Latole |
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