Welcome To the Hoffman Amplifiers Forum
March 11, 2026, 04:00:38 pm
Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 04:00:38 pm | ||
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| dogburn, passaloutre, Glenn and 93 Guests are viewing this board. | ||||
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heater schem question
Started by J Rindt |
11 Replies
4028 Views |
December 08, 2016, 06:59:36 pmby J Rindt |
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2 Replies
3489 Views |
December 08, 2016, 03:16:59 pm by Planobilly |
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Can i use 1R on el84 cathode same as 6V6 ?
Started by 12AX7 |
9 Replies
5195 Views |
December 08, 2016, 09:57:14 am by HotBluePlates |
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5 Replies
3330 Views |
December 07, 2016, 08:17:31 pm by eleventeen |
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Tube pre amp into SS power section
Started by dunner84 |
2 Replies
3089 Views |
December 07, 2016, 07:52:44 pm by MakerDP |
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12AX7 - 8 pin sub
Started by TIMBO |
42 Replies
10967 Views |
December 07, 2016, 04:09:02 pm by tubenit |
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A Stronger One tube Reverb with a SF ?
Started by kagliostro |
13 Replies
7752 Views |
December 07, 2016, 11:48:02 am by kagliostro |
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Tube Rectifier Power Supply with No Load
Started by Zarrir |
2 Replies
3139 Views |
December 06, 2016, 10:05:11 pm by Zarrir |
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Help please newbie builder alpha pots
Started by Bangy |
2 Replies
3261 Views |
December 06, 2016, 07:32:24 pm by Bangy |
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12au7 heater problem
Started by fossilshark |
13 Replies
6735 Views |
December 06, 2016, 06:34:56 pm by pompeiisneaks |
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9 Replies
5286 Views |
December 06, 2016, 02:54:55 pm by goldstache |
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F&T wierdness
Started by 12AX7 |
9 Replies
4503 Views |
December 06, 2016, 02:19:40 pm by 12AX7 |
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Low Powered Tweed Twin Issues - Help...
Started by p2pAmps |
13 Replies
5792 Views |
December 06, 2016, 01:17:35 pm by p2pAmps |
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Newcomb P-10-A
Started by Blind Lemon |
10 Replies
5632 Views |
December 06, 2016, 12:47:15 pm by eleventeen |
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Pp 6aq5 pt
Started by Scsoul |
8 Replies
5205 Views |
December 06, 2016, 12:16:10 pm by Scsoul |
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5 Replies
4266 Views |
December 06, 2016, 11:47:08 am by Bangy |
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Hotrod Deluxe III Weak Clean Channel
Started by dpm309 |
5 Replies
3311 Views |
December 05, 2016, 03:43:53 pm by dpm309 |
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JCM800 Preamp 6v6 Push Pull
Started by mwelch55 |
10 Replies
6503 Views |
December 05, 2016, 01:59:58 pm by HotBluePlates |
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3 Replies
2859 Views |
December 05, 2016, 08:52:02 am by shooter |
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Blowing fuse at startup
Started by dujuarez |
16 Replies
6684 Views |
December 05, 2016, 06:43:28 am by John |
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5f6a low power ( Resolved )
Started by makingnoise88 |
39 Replies
10003 Views |
December 05, 2016, 06:28:48 am by makingnoise88 |
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17 Replies
5360 Views |
December 04, 2016, 08:01:05 pm by Planobilly |
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100 Watt Twin Reverb Low Volume
Started by dpm309 |
4 Replies
3632 Views |
December 04, 2016, 03:40:37 pm by dpm309 |
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Toroidal transformer and reverb tank
Started by Leevi |
6 Replies
3604 Views |
December 03, 2016, 03:37:57 am by Leevi |
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Voltage check
Started by g-man |
2 Replies
3146 Views |
December 02, 2016, 06:29:32 pm by g-man |
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Tube pream in a pedal
Started by Oddvar |
17 Replies
6111 Views |
December 02, 2016, 05:13:02 am by kagliostro |
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microphonics?
Started by shooter |
1 Replies
2927 Views |
December 01, 2016, 03:35:15 pm by pompeiisneaks |
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8 Replies
4260 Views |
December 01, 2016, 02:07:48 pm by afinitemind |
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balancing the PI via trimmer?
Started by 12AX7 |
13 Replies
6800 Views |
December 01, 2016, 12:25:37 pm by 12AX7 |
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New EL84 15 watt build
Started by kingplank |
8 Replies
6865 Views |
December 01, 2016, 09:10:42 am by kingplank |
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Parallel loop schematic?
Started by 12AX7 |
8 Replies
8217 Views |
November 30, 2016, 03:37:49 pm by tubenit |
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7 Replies
6127 Views |
November 30, 2016, 01:11:14 pm by frankenxtein |
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3 Replies
3715 Views |
November 30, 2016, 11:35:27 am by sluckey |
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91 Replies
40656 Views |
November 30, 2016, 11:33:55 am by TubeGeek |
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Wiring heaters?
Started by makingnoise88 |
14 Replies
4701 Views |
November 30, 2016, 12:13:41 am by pompeiisneaks |
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2 Replies
4355 Views |
November 29, 2016, 08:45:56 pm by tubenit |
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Debugging ideas for B-15n - distorted sound
Started by dmp |
39 Replies
14209 Views |
November 29, 2016, 03:12:27 pm by pompeiisneaks |
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AC30 again, too hot?
Started by Oddvar |
3 Replies
3181 Views |
November 29, 2016, 03:09:16 am by Mark |
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7 Replies
6193 Views |
November 28, 2016, 08:15:41 pm by PRR |
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6 Replies
3918 Views |
November 28, 2016, 05:52:16 pm by sluckey |
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7 Replies
3911 Views |
November 28, 2016, 04:19:33 pm by Eulipian |
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60100 into fifty watt?
Started by Oddvar |
1 Replies
2706 Views |
November 28, 2016, 08:01:15 am by sluckey |
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Stage 1&2 oscillation
Started by dennyg |
21 Replies
8411 Views |
November 27, 2016, 10:02:52 pm by dennyg |
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question RE: PT tap
Started by 12AX7 |
8 Replies
3978 Views |
November 27, 2016, 05:46:53 pm by 12AX7 |
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71 Replies
18509 Views |
November 27, 2016, 03:14:09 pm by mresistor |
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doing math ?
Started by shooter |
4 Replies
2994 Views |
November 27, 2016, 01:56:22 pm by drgonzonm |
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7 Replies
4589 Views |
November 27, 2016, 06:45:22 am by Yreva |
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4 Replies
4189 Views |
November 26, 2016, 08:52:36 pm by goangling |
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26 Replies
17503 Views |
November 26, 2016, 08:10:54 pm by pullshocks |
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RCA 6L6s... two sets into a quad situation
Started by TerryD |
5 Replies
3949 Views |
November 26, 2016, 03:43:52 pm by TerryD |
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