Welcome To the Hoffman Amplifiers Forum
March 12, 2026, 08:08:00 am
Welcome To the Hoffman Amplifiers ForumMarch 12, 2026, 08:08:00 am | ||
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Correct primary impedance for a GA-20 OT
Started by john59 |
3 Replies
2694 Views |
January 11, 2014, 12:11:29 amby jazbo8 |
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Silver Jubilee Lite
Started by TIMBO |
0 Replies
2133 Views |
January 10, 2014, 06:28:52 pm by TIMBO |
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Bass boost switch on brown deluxe?
Started by Quatro |
8 Replies
3845 Views |
January 10, 2014, 12:47:00 am by sluckey |
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Help with my Mesa MarkIIB
Started by Marcus |
2 Replies
2394 Views |
January 09, 2014, 05:20:30 pm by stratele52 |
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Peavey Road Master Hack
Started by silverfox |
7 Replies
4783 Views |
January 09, 2014, 02:55:52 pm by silverfox |
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Master volume pot taper.
Started by FranciscoPerez |
27 Replies
8266 Views |
January 09, 2014, 10:45:38 am by thelonious |
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Unfair Bias ?
Started by Toxophilite |
21 Replies
6925 Views |
January 09, 2014, 03:25:19 am by Toxophilite |
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811 insanity
Started by 6G6 |
11 Replies
4841 Views |
January 08, 2014, 09:11:45 pm by PRR |
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Amp weirdness
Started by 3choplex |
6 Replies
3205 Views |
January 08, 2014, 05:24:43 pm by Platefire |
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134 Replies
42426 Views |
January 08, 2014, 05:20:34 pm by plexi50 |
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Stumped on a 5f11
Started by jukelemon |
11 Replies
6377 Views |
January 08, 2014, 01:22:22 pm by stratele52 |
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New Tube Market Survey
Started by plexi50 |
1 Replies
2385 Views |
January 08, 2014, 12:21:33 am by HotBluePlates |
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WARNING!!!(3 prong cords)
Started by jeff |
6 Replies
3401 Views |
January 07, 2014, 08:25:40 pm by Stankfut |
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Transformers .......in disguise
Started by Toxophilite |
8 Replies
3968 Views |
January 07, 2014, 07:24:08 pm by Toxophilite |
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10 Replies
4676 Views |
January 07, 2014, 02:07:34 pm by kagliostro |
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12 Replies
7367 Views |
January 07, 2014, 09:35:30 am by FranciscoPerez |
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old orange drops
Started by ernie_jr |
2 Replies
2892 Views |
January 07, 2014, 03:03:09 am by SoundmasterG |
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18 Replies
11394 Views |
January 07, 2014, 12:23:20 am by chocopower |
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68 Replies
23377 Views |
January 06, 2014, 05:40:03 pm by Willabe |
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8 Replies
7393 Views |
January 06, 2014, 05:24:26 pm by kagliostro |
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13 Replies
5774 Views |
January 06, 2014, 01:46:29 pm by HotBluePlates |
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2 Replies
3388 Views |
January 06, 2014, 12:52:59 pm by x44d80 |
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all-tube guitar headphone amp.
Started by arjepsen |
5 Replies
5895 Views |
January 06, 2014, 12:40:15 pm by kagliostro |
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isolation transformer question.
Started by jeff |
8 Replies
3517 Views |
January 06, 2014, 12:28:32 pm by jjasilli |
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pre-amp ?'s
Started by shooter |
9 Replies
4629 Views |
January 06, 2014, 11:34:00 am by shooter |
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12 Replies
4597 Views |
January 06, 2014, 11:24:20 am by eleventeen |
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Should I use .001 instead of .0005?
Started by hesamadman |
4 Replies
2943 Views |
January 06, 2014, 03:11:07 am by stratele52 |
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11 Replies
4861 Views |
January 04, 2014, 06:37:14 pm by smackoj |
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Electrolytic Capacitor Question
Started by Platefire |
3 Replies
2246 Views |
January 04, 2014, 11:05:28 am by Platefire |
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are these caps bad?
Started by pbman1953 |
36 Replies
12409 Views |
January 03, 2014, 08:28:56 am by pbman1953 |
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Mismatch power tube current balance
Started by TIMBO |
28 Replies
8660 Views |
January 03, 2014, 12:14:12 am by TIMBO |
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4 Replies
2972 Views |
January 02, 2014, 08:27:33 pm by Speakz |
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16 Replies
9340 Views |
January 02, 2014, 06:21:05 pm by Willabe |
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3 Replies
2614 Views |
January 02, 2014, 11:50:16 am by stratele52 |
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Reverb hum - pedal related
Started by osing |
13 Replies
4789 Views |
January 01, 2014, 07:10:18 pm by osing |
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Happy New Year!!!
Started by plexi50 |
8 Replies
3945 Views |
January 01, 2014, 12:07:00 pm by FranciscoPerez |
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Adding EMI filter to an amp?
Started by ncusack |
4 Replies
5815 Views |
January 01, 2014, 04:02:15 am by stratele52 |
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9 Replies
4647 Views |
December 31, 2013, 06:25:14 pm by HotBluePlates |
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Does dual bias really work to 'Match' tubes?
Started by Ed_Chambley « 1 2 » |
66 Replies
26546 Views |
December 31, 2013, 02:24:21 pm by Willabe |
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Why did Peavey do this ?
Started by floyd |
1 Replies
3300 Views |
December 30, 2013, 05:05:44 pm by PRR |
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Temperature of a 12AX7
Started by TIMBO |
14 Replies
7516 Views |
December 30, 2013, 04:25:57 pm by TIMBO |
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Brown Concert bias mod?
Started by Mars-Hall |
12 Replies
5356 Views |
December 29, 2013, 10:10:46 pm by eleventeen |
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Mo' Rock Special
Started by tubenit |
3 Replies
2886 Views |
December 29, 2013, 08:51:32 am by terminalgs |
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Newcomb Pathfinder E-10B
Started by SpareRibs |
22 Replies
11700 Views |
December 28, 2013, 10:05:59 pm by SpareRibs |
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Ampeg Superjet SJ12T (1990's)
Started by upnorth2 |
0 Replies
3655 Views |
December 28, 2013, 07:08:09 pm by upnorth2 |
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mosfet CF bootstrapped?
Started by tubenit |
19 Replies
8562 Views |
December 28, 2013, 01:54:19 am by kagliostro |
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New Tung Sol- KT's
Started by pbman1953 |
16 Replies
7911 Views |
December 26, 2013, 10:50:03 pm by Ritchie200 |
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quad 6bq5 build
Started by shooter |
14 Replies
7295 Views |
December 26, 2013, 12:24:41 pm by shooter |
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AA864 Bassman ?
Started by floyd |
7 Replies
7650 Views |
December 26, 2013, 11:50:09 am by Willabe |
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Note to all - Merry Christmas
Started by dude |
16 Replies
5548 Views |
December 26, 2013, 03:29:21 am by FranciscoPerez |
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