Welcome To the Hoffman Amplifiers Forum
December 09, 2025, 09:55:21 am
Welcome To the Hoffman Amplifiers ForumDecember 09, 2025, 09:55:21 am | ||
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No problems this time- it's done!
Started by firemedic |
5 Replies
4019 Views |
September 18, 2010, 11:29:30 pmby firemedic |
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My version of the TOS
Started by stingray_65 |
27 Replies
9801 Views |
September 18, 2010, 10:26:08 pm by 67polara |
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Fender Right Channel Quit...........
Started by Pastortom |
2 Replies
2810 Views |
September 18, 2010, 06:22:43 pm by plexi50 |
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49 Replies
16387 Views |
September 18, 2010, 11:47:26 am by RicharD |
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18 Replies
8600 Views |
September 18, 2010, 10:12:56 am by jojokeo |
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Inexpensive Attenuator
Started by Joe6v6 |
9 Replies
5173 Views |
September 17, 2010, 09:34:48 pm by samato |
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Tweaking my Pro Jr rewire.
Started by toomanyslurpees |
18 Replies
9605 Views |
September 17, 2010, 05:53:41 pm by toomanyslurpees |
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15 Replies
9542 Views |
September 17, 2010, 05:21:21 pm by Fresh_Start |
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3 Replies
3108 Views |
September 17, 2010, 04:14:23 pm by Pastortom |
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Pedal Steel Amp Ideas
Started by LooseChange |
3 Replies
3723 Views |
September 17, 2010, 10:25:38 am by bigdaddy |
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Presence Pot Differences
Started by plexi50 |
7 Replies
5221 Views |
September 16, 2010, 10:50:43 pm by bluesbear |
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ID this tube!
Started by Trevor_Long |
9 Replies
6468 Views |
September 16, 2010, 09:41:14 am by DummyLoad |
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New Mallory M150 White Capacitors
Started by plexi50 |
25 Replies
19642 Views |
September 15, 2010, 04:41:24 pm by jojokeo |
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Feedback
Started by tubesornothing |
6 Replies
5148 Views |
September 15, 2010, 03:50:46 pm by bluesbear |
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max power of EF86
Started by Leevi |
30 Replies
16738 Views |
September 15, 2010, 11:58:43 am by Leevi |
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Noise in a 5e8a twin.
Started by FranciscoPerez |
6 Replies
4251 Views |
September 15, 2010, 11:14:19 am by FranciscoPerez |
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1 Replies
3462 Views |
September 15, 2010, 03:31:22 am by FYL |
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sneak this in...need voltage doubler or way to increase bias ac voltage
Started by ampcabinets |
7 Replies
7733 Views |
September 14, 2010, 11:57:23 pm by PRR |
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Hum In Amp
Started by plexi50 |
6 Replies
4288 Views |
September 14, 2010, 11:45:22 pm by PRR |
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8 Replies
5387 Views |
September 14, 2010, 09:02:20 am by kagliostro |
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ab763 reverb squeal and more
Started by nateflanigan « 1 2 » |
63 Replies
25279 Views |
September 14, 2010, 07:31:49 am by nateflanigan |
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0 Replies
3380 Views |
September 13, 2010, 12:58:45 pm by frank57 |
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12AX7 heaters in series at 13.4V AC
Started by fluzo18 |
6 Replies
5044 Views |
September 13, 2010, 11:11:42 am by stingray_65 |
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parallel - cascade switching?
Started by tubenit |
3 Replies
3937 Views |
September 13, 2010, 03:01:23 am by tubeswell |
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Reducing gain
Started by firemedic |
4 Replies
3466 Views |
September 13, 2010, 02:54:44 am by kagliostro |
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8 Replies
7008 Views |
September 13, 2010, 02:05:24 am by kagliostro |
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Tube and Voltage change on the TOS amp
Started by 67polara |
7 Replies
4980 Views |
September 12, 2010, 11:40:54 pm by 67polara |
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Tung Sol KT66 and pre-PI cap?
Started by firemedic |
11 Replies
7690 Views |
September 12, 2010, 10:53:51 pm by firemedic |
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Problem with excessive current draw
Started by Joe1968 |
7 Replies
7891 Views |
September 12, 2010, 08:57:19 pm by PRR |
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Howl and Squeal on fire up
Started by stingray_65 |
4 Replies
4199 Views |
September 12, 2010, 01:50:44 pm by eleventeen |
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Question re "old" 6L6G's
Started by Coastie99 |
7 Replies
5149 Views |
September 12, 2010, 05:46:25 am by FYL |
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7 Replies
4944 Views |
September 12, 2010, 03:15:03 am by The_Gaz |
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5 Replies
4327 Views |
September 11, 2010, 02:21:12 pm by loogie |
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Magnatone M10 OT Question
Started by plexi50 |
3 Replies
3374 Views |
September 11, 2010, 11:30:06 am by sluckey |
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output transformers
Started by billcreller |
8 Replies
6398 Views |
September 11, 2010, 08:01:44 am by bluesbear |
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5B2 question
Started by Madison |
4 Replies
3598 Views |
September 11, 2010, 01:19:12 am by Madison |
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6 Replies
5998 Views |
September 10, 2010, 08:54:25 pm by eleventeen |
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nothing here
Started by ampcabinets |
20 Replies
10269 Views |
September 10, 2010, 03:56:13 pm by DummyLoad |
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4 Replies
5205 Views |
September 10, 2010, 02:58:00 pm by Baguette |
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MOVED: Measuring relay voltage
Started by EL34 |
0 Replies
2946 Views |
September 10, 2010, 02:45:39 pm by EL34 |
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Can I jumper the bias range resistor?
Started by Baguette |
4 Replies
4148 Views |
September 10, 2010, 02:25:49 pm by Baguette |
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Conversion request
Started by rzenc |
23 Replies
9347 Views |
September 10, 2010, 08:48:12 am by rzenc |
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9 Replies
5145 Views |
September 10, 2010, 02:37:21 am by Baguette |
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Reverb Buzz in AB763
Started by John_D |
2 Replies
4248 Views |
September 09, 2010, 07:01:42 pm by John_D |
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65 amps tupelo...
Started by bruno |
3 Replies
3943 Views |
September 09, 2010, 03:29:47 pm by bruno |
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PT Question
Started by TIMBO |
5 Replies
5134 Views |
September 09, 2010, 02:16:00 pm by TIMBO |
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High V1 Cathode Voltages*
Started by plexi50 |
8 Replies
6227 Views |
September 09, 2010, 01:44:21 pm by plexi50 |
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1-tube reverb problem
Started by firemedic |
10 Replies
6196 Views |
September 08, 2010, 06:06:07 pm by tubenit |
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pre-champ style amps
Started by Madison |
5 Replies
4798 Views |
September 08, 2010, 05:28:22 pm by loogie |
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Filter cap resistors
Started by macula56 |
7 Replies
5992 Views |
September 08, 2010, 07:20:17 am by macula56 |
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