Welcome To the Hoffman Amplifiers Forum
September 06, 2025, 09:39:15 pm
Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 09:39:15 pm | ||
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loud hum on Krank Revolution 1
Started by Jack1962 |
13 Replies
7284 Views |
March 19, 2013, 06:15:21 pmby Jack1962 |
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Bias Splitter Theory
Started by alerich |
2 Replies
2781 Views |
March 19, 2013, 11:10:20 am by alerich |
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need a source for 6KG6A/ EL509 tubes
Started by pbman1953 |
7 Replies
3725 Views |
March 19, 2013, 07:26:14 am by pbman1953 |
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A 6V6 in the Hand's Worth a 6L6 in the Bush
Started by jeff |
30 Replies
7990 Views |
March 18, 2013, 10:29:44 pm by DummyLoad |
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11 Replies
6028 Views |
March 18, 2013, 04:31:58 pm by kagliostro |
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Anybody heard of a Mark Sheets Amp?
Started by Platefire |
7 Replies
3916 Views |
March 18, 2013, 02:20:18 pm by Willabe |
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13 Replies
4373 Views |
March 18, 2013, 02:03:46 pm by Willabe |
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Hoffman stereo poweramp
Started by mule |
1 Replies
1756 Views |
March 18, 2013, 01:56:55 am by kagliostro |
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19 Replies
7066 Views |
March 17, 2013, 05:27:09 pm by Bluemeany |
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Is this schematic correct ?
Started by kagliostro |
2 Replies
1727 Views |
March 17, 2013, 03:39:55 pm by kagliostro |
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Power Amp Build Problem
Started by silverfox |
18 Replies
5124 Views |
March 17, 2013, 03:35:37 pm by silverfox |
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Cathode biased PR trem depth ?
Started by floyd |
13 Replies
3818 Views |
March 17, 2013, 01:14:23 pm by floyd |
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Another Revibe story
Started by sluckey |
8 Replies
3110 Views |
March 17, 2013, 09:34:45 am by punkykatt |
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Mid Boost
Started by dscottguitars |
2 Replies
2134 Views |
March 16, 2013, 05:40:20 pm by dscottguitars |
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2 Replies
2199 Views |
March 16, 2013, 05:06:56 pm by Platefire |
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8 Replies
3140 Views |
March 16, 2013, 02:11:07 pm by catnine |
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4 Replies
2220 Views |
March 16, 2013, 02:04:22 pm by sluckey |
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bias resisto question
Started by bakerlite |
2 Replies
1948 Views |
March 16, 2013, 12:04:34 pm by bakerlite |
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HT fuse location in circuit
Started by alerich |
17 Replies
13041 Views |
March 16, 2013, 10:04:00 am by alerich |
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4 Replies
2589 Views |
March 16, 2013, 02:15:04 am by kagliostro |
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6 Replies
2523 Views |
March 15, 2013, 09:11:03 am by 6G6 |
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Delta Blues bias riddle
Started by firemedic |
23 Replies
7237 Views |
March 14, 2013, 07:55:27 pm by plexi50 |
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3 Replies
2524 Views |
March 14, 2013, 01:51:32 pm by coreysan |
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Carvin XV-112E info
Started by firemedic |
8 Replies
6151 Views |
March 14, 2013, 01:35:36 pm by alerich |
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9 Replies
3670 Views |
March 13, 2013, 10:24:29 pm by HotBluePlates |
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2 Replies
1799 Views |
March 13, 2013, 05:58:23 pm by stratele52 |
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On these NFB circuits?
Started by catnine |
12 Replies
4918 Views |
March 13, 2013, 03:47:09 pm by catnine |
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5E5-A channel bleed
Started by punkykatt |
10 Replies
3800 Views |
March 13, 2013, 10:59:05 am by punkykatt |
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Ao-29 parts
Started by Seegs |
3 Replies
2217 Views |
March 13, 2013, 10:15:20 am by m3moser |
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4 Replies
4448 Views |
March 13, 2013, 08:14:39 am by HotBluePlates |
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DC voltage across Tremolo Pot of SFPR
Started by OwnGoal |
1 Replies
2019 Views |
March 12, 2013, 02:44:07 am by eleventeen |
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5879 octal equivalent?
Started by Quatro |
8 Replies
8719 Views |
March 11, 2013, 10:48:06 pm by DummyLoad |
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Bogen CHB 20a question
Started by Seegs |
18 Replies
5909 Views |
March 11, 2013, 09:52:58 pm by Seegs |
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on/off switch popping
Started by dscottguitars |
11 Replies
4059 Views |
March 11, 2013, 01:42:28 pm by jojokeo |
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17 Replies
4670 Views |
March 10, 2013, 06:52:38 pm by HotBluePlates |
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Negative feedback pot is scratchy
Started by dscottguitars |
25 Replies
8005 Views |
March 10, 2013, 04:55:07 pm by dscottguitars |
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Princeton Reverb AA1164 Modified
Started by Ed_Chambley |
47 Replies
15321 Views |
March 10, 2013, 03:37:57 pm by catnine |
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3 Replies
2271 Views |
March 10, 2013, 02:44:49 pm by smackoj |
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In the intrest of learning
Started by jeff |
3 Replies
1965 Views |
March 10, 2013, 02:21:12 pm by PRR |
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artificial center tap
Started by ernie_jr |
1 Replies
2151 Views |
March 10, 2013, 01:45:49 pm by eleventeen |
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220K vs. 470K mix resistors ?
Started by floyd |
2 Replies
3795 Views |
March 10, 2013, 12:27:33 pm by HotBluePlates |
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'54 Gibson LP GA-40 Tremolo
Started by Jack_Hester |
40 Replies
18460 Views |
March 09, 2013, 08:06:40 pm by Deuce 225 |
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Chassis mounting tips
Started by jeff |
19 Replies
11071 Views |
March 09, 2013, 02:30:16 pm by catnine |
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Fender pa 100 vs questions.
Started by Bleachedfan |
7 Replies
3100 Views |
March 09, 2013, 11:45:12 am by plexi50 |
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pentodes and triodes in preamp
Started by macula56 |
8 Replies
4834 Views |
March 09, 2013, 06:50:38 am by macula56 |
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73 Replies
17593 Views |
March 08, 2013, 07:35:00 pm by plexi50 |
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boost idea
Started by dscottguitars |
25 Replies
5868 Views |
March 08, 2013, 03:50:30 pm by guitardude57 |
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4 Replies
2482 Views |
March 08, 2013, 01:40:17 pm by floyd |
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New guy and first question.
Started by Bleachedfan |
2 Replies
2043 Views |
March 08, 2013, 12:36:34 pm by Bleachedfan |
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15 Replies
7550 Views |
March 08, 2013, 05:04:07 am by Bluemeany |
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