Welcome To the Hoffman Amplifiers Forum
January 24, 2026, 07:19:39 am
Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 07:19:39 am | ||
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| 0 Members and 36 Guests are viewing this board. | ||||
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8 Replies
4299 Views |
May 15, 2017, 03:37:05 pmby Colas LeGrippa |
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EL34 PP Cathode Bias Build
Started by 7string |
2 Replies
3475 Views |
May 15, 2017, 11:49:41 am by 7string |
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11 Replies
4940 Views |
May 14, 2017, 11:11:26 pm by Bangy |
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Bad tube or bad cap?
Started by Colas LeGrippa |
13 Replies
4928 Views |
May 13, 2017, 10:08:38 am by Colas LeGrippa |
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Is this datasheet wrong ??
Started by kagliostro |
12 Replies
5999 Views |
May 12, 2017, 09:51:46 pm by PRR |
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Debugging a 2204
Started by hesamadman |
8 Replies
3580 Views |
May 12, 2017, 06:21:31 pm by Ritchie200 |
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Peavey 6505 piranha
Started by fossilshark |
3 Replies
5474 Views |
May 12, 2017, 05:47:18 am by smackoj |
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Heater regulator
Started by fossilshark |
11 Replies
3634 Views |
May 11, 2017, 05:25:41 pm by fossilshark |
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Champ 5f1 for bass
Started by fossilshark |
13 Replies
6190 Views |
May 11, 2017, 06:25:41 am by fossilshark |
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output transformer
Started by tdelucia |
4 Replies
3233 Views |
May 10, 2017, 11:30:50 pm by PRR |
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Tremolux 5E9-A
Started by tubenit |
12 Replies
7108 Views |
May 10, 2017, 12:42:47 pm by tubenit |
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6G6 Bassman bass channel resistor?
Started by punkykatt |
2 Replies
2928 Views |
May 10, 2017, 11:59:14 am by punkykatt |
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5c1 Choke Question
Started by plumcrazyfx |
6 Replies
4461 Views |
May 09, 2017, 09:15:43 pm by plumcrazyfx |
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401 Replies
244597 Views |
May 08, 2017, 03:28:03 pm by frankenxtein |
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Fender Vibrosonic tube pairs
Started by pbman1953 |
23 Replies
10274 Views |
May 08, 2017, 12:56:13 pm by pbman1953 |
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Help learning reverb circuits
Started by hesamadman |
33 Replies
9163 Views |
May 08, 2017, 08:50:08 am by jjasilli |
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2 Replies
3035 Views |
May 08, 2017, 05:18:03 am by tubeswell |
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added this fancy master volume...hum
Started by EthanB17 |
20 Replies
5818 Views |
May 06, 2017, 01:51:18 pm by ratgon |
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How can this improve
Started by fossilshark |
33 Replies
9183 Views |
May 06, 2017, 01:17:36 am by SolidStateCircuitReject |
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41 Replies
11858 Views |
May 05, 2017, 12:05:43 pm by edthill |
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PV 6505+ issue
Started by dpm309 |
2 Replies
2806 Views |
May 04, 2017, 11:45:08 pm by dpm309 |
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14 Replies
5313 Views |
May 04, 2017, 11:58:25 am by Sonny ReVerb |
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4 Replies
2927 Views |
May 04, 2017, 09:18:05 am by Colas LeGrippa |
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My Ep-2 Project
Started by goldstache |
10 Replies
9213 Views |
May 03, 2017, 03:43:21 pm by goldstache |
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2- Sunn 2000's compared
Started by pbman1953 |
21 Replies
8758 Views |
May 02, 2017, 05:57:13 pm by Willabe |
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Couple question on power rail voltages
Started by dude |
5 Replies
4277 Views |
May 02, 2017, 08:08:02 am by jjasilli |
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68 Marshall 50W plexi on the bench
Started by TubeGeek |
5 Replies
4935 Views |
May 02, 2017, 02:01:49 am by purpletele |
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Pro-Amp_5E5_reverb/5E5_Pro_amp__w_reverb
Started by frankenxtein « 1 2 » |
60 Replies
16679 Views |
May 01, 2017, 03:31:43 pm by frankenxtein |
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Ab763 filter cap grounding photos?
Started by nickp |
4 Replies
3149 Views |
April 29, 2017, 10:30:56 am by nickp |
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First 2-channel amp build
Started by John |
6 Replies
3312 Views |
April 28, 2017, 07:48:23 pm by John |
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24 Replies
10357 Views |
April 28, 2017, 07:26:31 pm by drgonzonm |
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Airline model 9004 schematic
Started by HighAndDry |
13 Replies
5300 Views |
April 28, 2017, 06:04:07 pm by PRR |
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Negative Feedback Question
Started by dude |
18 Replies
6412 Views |
April 28, 2017, 01:38:14 pm by dude |
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23 Replies
7508 Views |
April 28, 2017, 09:53:32 am by Joeriz |
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Blackstar ISF
Started by Leevi |
4 Replies
3499 Views |
April 27, 2017, 04:20:35 pm by pompeiisneaks |
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Kagliostro 12AU7 push pull schematic
Started by Ritchie200 « 1 2 » |
61 Replies
30978 Views |
April 27, 2017, 03:20:31 pm by PRR |
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6MB8 Mini-Bassman Standard
Started by purpletele « 1 2 » |
62 Replies
21895 Views |
April 27, 2017, 12:39:44 pm by purpletele |
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Modding/Converting 100w Carlsbro amp
Started by JayCobie |
11 Replies
6583 Views |
April 27, 2017, 11:46:24 am by MartinB |
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2 Replies
2866 Views |
April 27, 2017, 01:13:27 am by deaftone |
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PI Plate Volts High
Started by fdesalvo |
6 Replies
3570 Views |
April 26, 2017, 03:41:14 pm by fdesalvo |
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50K trimpot wiring in JCM800
Started by SleepLess |
11 Replies
4375 Views |
April 26, 2017, 11:04:44 am by sluckey |
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7 Replies
3589 Views |
April 26, 2017, 07:40:30 am by ratgon |
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Tremolo intensity too deep or intense
Started by dude |
5 Replies
3558 Views |
April 25, 2017, 03:46:31 pm by kagliostro |
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5 Replies
3982 Views |
April 24, 2017, 08:28:50 pm by frpax |
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Hoffmann 5F6A bias circuit
Started by Bangy |
13 Replies
6259 Views |
April 24, 2017, 06:19:09 pm by Bangy |
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Amp blew fuse, now hummmmms. Bad caps?
Started by jeff |
20 Replies
7170 Views |
April 24, 2017, 02:02:23 pm by jeff |
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2 Replies
2631 Views |
April 24, 2017, 11:21:47 am by kagliostro |
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CMB. 70s Orange/Matamp clone
Started by chocopower |
19 Replies
7778 Views |
April 24, 2017, 07:43:40 am by chocopower |
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Bias Voltage Transformer
Started by J Rindt |
10 Replies
5090 Views |
April 23, 2017, 03:50:33 pm by J Rindt |
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HoSo56 Minimalist
Started by Deric |
4 Replies
3643 Views |
April 23, 2017, 02:33:49 pm by tubenit |
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