Welcome To the Hoffman Amplifiers Forum
January 23, 2026, 05:58:52 pm
Welcome To the Hoffman Amplifiers ForumJanuary 23, 2026, 05:58:52 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| astronomicum and 109 Guests are viewing this board. | ||||
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11 Replies
1801 Views |
May 12, 2025, 06:31:49 pmby scstill |
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6 Replies
1361 Views |
May 12, 2025, 07:41:39 am by Nathan |
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Acceptable noise in new amp build
Started by dusty712 |
2 Replies
1266 Views |
May 11, 2025, 06:13:42 pm by dusty712 |
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8 Replies
1508 Views |
May 11, 2025, 07:50:25 am by pbman1953 |
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15 Replies
2417 Views |
May 10, 2025, 06:49:54 pm by pullshocks |
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7 Replies
1499 Views |
May 10, 2025, 06:11:36 pm by Harvester |
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LND 150 FX loop pcb
Started by joesatch |
17 Replies
2610 Views |
May 10, 2025, 05:00:57 pm by tristanc |
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Riviera amp with a mysterious fault
Started by hylaphone |
6 Replies
1497 Views |
May 09, 2025, 08:21:58 am by hylaphone |
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Tube Town EF86 AC18 Tweaks
Started by jjschessmaster |
4 Replies
1368 Views |
May 09, 2025, 05:09:27 am by jjschessmaster |
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3 Replies
1221 Views |
May 09, 2025, 03:42:15 am by BlackCrowe604 |
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9 Replies
1682 Views |
May 07, 2025, 04:25:44 pm by dogburn |
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8 Replies
3332 Views |
May 06, 2025, 06:47:08 pm by tubeswell |
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2 Replies
1082 Views |
May 06, 2025, 12:21:55 pm by CascoSieg |
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Sunn Model T clone individual tube bias
Started by dusty712 |
30 Replies
5194 Views |
May 05, 2025, 06:15:18 am by dusty712 |
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Got a Blues Deville RI
Started by Nathan |
18 Replies
2743 Views |
May 01, 2025, 02:04:50 pm by Willabe |
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38 Replies
13351 Views |
May 01, 2025, 08:48:02 am by pullshocks |
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Choke placement and orientation
Started by dusty712 |
5 Replies
1682 Views |
April 30, 2025, 08:55:09 pm by dusty712 |
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Pentode operation in preamp and 2nd stage
Started by scstill |
3 Replies
1615 Views |
April 30, 2025, 06:23:10 pm by DummyLoad |
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20 Replies
3721 Views |
April 30, 2025, 02:56:53 pm by tubeswell |
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How to identify rectifier tube
Started by punkykatt |
8 Replies
1379 Views |
April 29, 2025, 07:54:32 pm by punkykatt |
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Testing Output Transformers
Started by fossilshark |
9 Replies
2069 Views |
April 28, 2025, 01:35:56 pm by fossilshark |
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21 Replies
2886 Views |
April 27, 2025, 09:30:24 pm by tubeswell |
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1 Replies
1045 Views |
April 27, 2025, 05:23:34 am by Merlin |
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Diagnosing smell from NOS tubes
Started by shattered |
22 Replies
3348 Views |
April 26, 2025, 09:46:15 pm by passaloutre |
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Princeton clone reverb low output
Started by Lectroid |
13 Replies
2343 Views |
April 26, 2025, 10:31:41 am by Willabe |
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cap to ground on mid pot?
Started by joesatch |
7 Replies
1857 Views |
April 25, 2025, 03:54:52 pm by Willabe |
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O-scope - When all else fails
Started by stratomaster |
7 Replies
1903 Views |
April 24, 2025, 01:38:01 pm by stratomaster |
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Single Channel 6G6
Started by sclinchy |
10 Replies
5411 Views |
April 24, 2025, 09:01:09 am by jonathan_kea |
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18watt Cascade preamp layout
Started by distortionhead |
25 Replies
4471 Views |
April 24, 2025, 04:54:54 am by distortionhead |
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Jet city custom 22
Started by Tone Junkie |
2 Replies
1553 Views |
April 23, 2025, 11:41:16 am by Tone Junkie |
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TAD KT66 with loose base
Started by RoadShow |
9 Replies
1922 Views |
April 22, 2025, 11:25:39 am by RoadShow |
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70 Replies
10631 Views |
April 21, 2025, 08:28:27 pm by tubeswell |
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12 Replies
8014 Views |
April 21, 2025, 03:39:27 pm by tremdoctor |
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48 Replies
12621 Views |
April 20, 2025, 11:28:59 am by Yeatzee |
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Bias current vs. voltage
Started by Lectroid |
8 Replies
2266 Views |
April 20, 2025, 09:56:26 am by Lectroid |
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15 Replies
3070 Views |
April 18, 2025, 12:24:21 pm by B-Rex |
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6 Replies
2052 Views |
April 17, 2025, 06:13:14 pm by BlackCrowe604 |
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hot rod deluxe dumble pcb
Started by Mattjaco1 |
5 Replies
2308 Views |
April 17, 2025, 11:18:45 am by Mattjaco1 |
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Bad reverb transformer? maybe the tank?
Started by KimboDb |
30 Replies
10731 Views |
April 16, 2025, 08:30:00 pm by tubeswell |
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Hammond 1140-LN-E Transformer
Started by exnihilfit |
5 Replies
1892 Views |
April 16, 2025, 12:25:10 pm by exnihilfit |
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4 Replies
1919 Views |
April 16, 2025, 07:54:00 am by Lectroid |
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24 Replies
4360 Views |
April 16, 2025, 04:47:27 am by Latole |
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Bias circuit assistance.
Started by joesatch |
4 Replies
1447 Views |
April 15, 2025, 12:03:04 pm by tubeswell |
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4 Replies
1755 Views |
April 15, 2025, 11:38:42 am by scstill |
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bias ground
Started by joesatch |
11 Replies
2572 Views |
April 14, 2025, 06:15:32 pm by pdf64 |
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Squeal in the 77 Pentode channel
Started by scstill |
5 Replies
2264 Views |
April 14, 2025, 03:26:08 pm by scstill |
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Robinette JCM 800 Bias Problem
Started by B-Rex |
8 Replies
1893 Views |
April 14, 2025, 01:39:14 pm by B-Rex |
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RF noise filtering
Started by phsyconoodler |
15 Replies
12397 Views |
April 14, 2025, 09:53:04 am by scstill |
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20 Replies
4031 Views |
April 13, 2025, 11:05:28 pm by sec1rlr |
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PT Tap question
Started by joesatch |
1 Replies
1344 Views |
April 13, 2025, 08:46:37 pm by tubeswell |
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