Welcome To the Hoffman Amplifiers Forum
April 27, 2026, 08:01:28 pm
Welcome To the Hoffman Amplifiers ForumApril 27, 2026, 08:01:28 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 82 Guests are viewing this board. | ||||
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Valco tonemaster schem ?
Started by jerrydyer |
4 Replies
5269 Views |
October 30, 2012, 06:51:46 pmby HotBluePlates |
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Setting bias using amp head bias probe
Started by frank57 |
5 Replies
5435 Views |
October 30, 2012, 02:40:14 pm by stratele52 |
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7591 tubes
Started by ernie_jr |
10 Replies
17038 Views |
October 30, 2012, 01:45:47 pm by PRR |
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Trainwreck Express vs Marshall 1987 Plexi
Started by jojokeo |
34 Replies
24041 Views |
October 29, 2012, 07:30:43 pm by printer2 |
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Control Grid Reading On EL34.
Started by Gary_S |
30 Replies
17237 Views |
October 29, 2012, 02:46:01 pm by Gary_S |
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26 Replies
13946 Views |
October 29, 2012, 09:55:48 am by TubeGeek |
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Very Strange Problem
Started by dscottguitars |
11 Replies
5471 Views |
October 29, 2012, 12:55:49 am by PRR |
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Gibson Thor output impedance
Started by Tiny_Daddy |
3 Replies
3659 Views |
October 28, 2012, 12:00:57 pm by HotBluePlates |
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preamp tube testing chassis
Started by Quatro |
7 Replies
6516 Views |
October 28, 2012, 03:34:45 am by SoundmasterG |
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50/60 cycles - difference in tone?
Started by Quatro |
5 Replies
8670 Views |
October 28, 2012, 01:00:32 am by HotBluePlates |
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double decked layout boards ?
Started by tubenit |
7 Replies
4528 Views |
October 27, 2012, 05:59:05 am by SoundmasterG |
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6.3V lamp current
Started by spacelabstudio |
7 Replies
4588 Views |
October 26, 2012, 09:02:42 pm by tubeswell |
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filter caps question
Started by dude |
5 Replies
3688 Views |
October 26, 2012, 05:45:28 pm by dude |
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2x Speaker Cab switch
Started by moonbird |
3 Replies
3803 Views |
October 25, 2012, 08:29:50 pm by moonbird |
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Princeton Reverb Clone Preamp Bias
Started by plexi50 |
8 Replies
5276 Views |
October 25, 2012, 06:34:36 pm by HotBluePlates |
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Powercon
Started by spacelabstudio |
1 Replies
3038 Views |
October 25, 2012, 06:32:42 pm by HotBluePlates |
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51 Replies
15185 Views |
October 24, 2012, 05:41:01 pm by embotone |
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Stand Alone JCM800 Preamp Help Please
Started by ncusack |
1 Replies
4135 Views |
October 24, 2012, 11:08:28 am by SILVERGUN |
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44 Replies
19004 Views |
October 23, 2012, 05:42:50 pm by SILVERGUN |
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51 Replies
17565 Views |
October 23, 2012, 04:04:45 pm by SleepLess |
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6v6 ppp output tranny
Started by ernie_jr |
6 Replies
5014 Views |
October 22, 2012, 03:46:27 am by stratele52 |
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Tweed Tone Control Simulation
Started by printer2 |
0 Replies
4097 Views |
October 21, 2012, 09:36:29 pm by printer2 |
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Pilot/heater delay when powering up
Started by Mars-Hall |
4 Replies
3602 Views |
October 21, 2012, 12:08:42 am by PRR |
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10 Replies
4606 Views |
October 20, 2012, 07:43:13 pm by Willabe |
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TREMOLUX AB763 speaker load ?
Started by Colas LeGrippa |
13 Replies
8683 Views |
October 20, 2012, 04:37:03 pm by Colas LeGrippa |
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71 Replies
22517 Views |
October 20, 2012, 09:12:08 am by worth |
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Lower V1 bypass cap value increases hum?
Started by schoolie |
18 Replies
11058 Views |
October 18, 2012, 07:46:35 pm by tubenit |
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Sovtek 5Y3
Started by labb |
18 Replies
9212 Views |
October 18, 2012, 01:16:23 pm by jeff |
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Hi.
Started by musicman3858 |
13 Replies
6073 Views |
October 17, 2012, 02:52:55 pm by Willabe |
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39 Replies
14983 Views |
October 17, 2012, 02:17:46 pm by Gary_S |
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2 Replies
3777 Views |
October 16, 2012, 10:07:26 pm by HotBluePlates |
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2 Replies
3953 Views |
October 16, 2012, 05:10:21 pm by kagliostro |
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11 Replies
12281 Views |
October 16, 2012, 01:31:58 pm by carausius |
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JCM800 6550 issue
Started by newtube |
7 Replies
7065 Views |
October 15, 2012, 10:26:32 pm by PRR |
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Model x what are they good for?
Started by rafe |
7 Replies
5110 Views |
October 15, 2012, 07:42:03 pm by rafe |
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5E3 Volume Tone mod
Started by printer2 |
6 Replies
4905 Views |
October 14, 2012, 07:00:42 pm by printer2 |
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New pre-build pics...eye candy
Started by SILVERGUN |
25 Replies
9074 Views |
October 14, 2012, 12:32:33 pm by SILVERGUN |
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6 Replies
6003 Views |
October 13, 2012, 10:31:55 am by carausius |
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9 Replies
5390 Views |
October 13, 2012, 06:33:52 am by jeff |
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1955 Fender Super Amp
Started by plexi50 |
15 Replies
10278 Views |
October 12, 2012, 04:20:55 pm by HotBluePlates |
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SE AMP build idea ?
Started by Colas LeGrippa |
17 Replies
6824 Views |
October 12, 2012, 08:55:13 am by Colas LeGrippa |
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8 Replies
4770 Views |
October 12, 2012, 08:37:30 am by Colas LeGrippa |
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14 Replies
8472 Views |
October 12, 2012, 02:05:23 am by slidincharlie |
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5 Replies
4357 Views |
October 11, 2012, 10:57:04 pm by PRR |
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Volume spike
Started by jeff |
3 Replies
3919 Views |
October 11, 2012, 08:53:02 pm by SILVERGUN |
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Marshall OP transformer issue
Started by newtube |
11 Replies
7475 Views |
October 10, 2012, 07:55:44 pm by newtube |
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headphone line out on a tube amp
Started by gtrbryan |
5 Replies
3908 Views |
October 10, 2012, 05:57:37 pm by alerich |
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Pot value ?
Started by Stankfut |
3 Replies
3243 Views |
October 10, 2012, 10:50:12 am by Stankfut |
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Ot hole spacing
Started by Stankfut |
3 Replies
3361 Views |
October 10, 2012, 09:19:19 am by Stankfut |
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el84 schedule 40 to 6v6 ?
Started by john_t |
8 Replies
4376 Views |
October 10, 2012, 08:35:14 am by john_t |
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