Welcome To the Hoffman Amplifiers Forum
December 08, 2025, 10:43:16 am
Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 10:43:16 am | ||
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EZ81 with B+ on the filament ?
Started by Ronquest |
36 Replies
9249 Views |
January 27, 2024, 03:28:29 pmby Ronquest |
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6V6gt vs. 7C5
Started by ALBATROS1234 |
2 Replies
2792 Views |
January 27, 2024, 12:00:00 pm by zircontweezer |
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Gibson GA19RVT-Extra PT wire..?
Started by tdvt |
9 Replies
3533 Views |
January 26, 2024, 06:24:14 pm by tdvt |
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100R vs 1K screen grid resistors in DR103?
Started by hiegdk |
2 Replies
2443 Views |
January 26, 2024, 04:59:36 pm by hiegdk |
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SINGLE ENDED AMPLIFIER (3K OUTPUT)
Started by Jonas |
34 Replies
7883 Views |
January 26, 2024, 01:50:38 pm by Jonas |
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Harmony H194
Started by clyde |
4 Replies
2657 Views |
January 26, 2024, 10:35:31 am by clyde |
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B52 AT100 Bias prob
Started by groovtubin |
0 Replies
2029 Views |
January 25, 2024, 11:49:37 pm by groovtubin |
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Show me the blocking distortion!
Started by Lectroid |
5 Replies
3631 Views |
January 25, 2024, 04:44:15 pm by PRR |
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Problem with roach tremolo now
Started by proaudioguy |
11 Replies
3562 Views |
January 25, 2024, 05:33:40 am by HotBluePlates |
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29 Replies
14257 Views |
January 25, 2024, 12:30:41 am by WimWalther |
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3 output-tube schematic analysis ?
Started by tdvt |
14 Replies
4501 Views |
January 24, 2024, 05:26:01 am by kagliostro |
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Sluckey's November 1
Started by AlNewman |
14 Replies
4173 Views |
January 23, 2024, 07:26:27 pm by sluckey |
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New 18W amp: questions
Started by Lectroid |
21 Replies
5005 Views |
January 23, 2024, 01:35:55 pm by dude |
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Goldentone rhythm light circuit
Started by jhanly |
0 Replies
1901 Views |
January 23, 2024, 06:41:01 am by jhanly |
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8 Replies
3092 Views |
January 22, 2024, 09:11:24 pm by waldner |
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Short in 6V6GT
Started by proaudioguy |
2 Replies
1911 Views |
January 22, 2024, 10:43:15 am by Brownie |
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Deluxe Reverb II to Deluxe Reverb
Started by proaudioguy |
21 Replies
6322 Views |
January 22, 2024, 10:33:25 am by tdvt |
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Hoffman Pro Jr questions
Started by proaudioguy |
8 Replies
2929 Views |
January 22, 2024, 06:46:24 am by EL34 |
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Choke placement...
Started by Brownie |
5 Replies
2851 Views |
January 21, 2024, 06:30:47 pm by WimWalther |
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Gibson Ensemble GA-86 on the bench
Started by TubeGeek |
9 Replies
3546 Views |
January 21, 2024, 09:11:16 am by Jonas |
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4 Replies
2568 Views |
January 20, 2024, 08:51:32 pm by WimWalther |
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14 Replies
4829 Views |
January 20, 2024, 04:13:21 pm by HotBluePlates |
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Easy grounding questions
Started by Lectroid |
8 Replies
3512 Views |
January 20, 2024, 01:22:26 pm by shooter |
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2 wrong values in an EQ section
Started by pbman1953 |
32 Replies
7307 Views |
January 19, 2024, 09:27:21 am by pbman1953 |
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Circuit explanation.
Started by slash1986 |
18 Replies
4740 Views |
January 19, 2024, 02:15:20 am by d95err |
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Silly amp design question…
Started by Jalmeida |
1 Replies
1807 Views |
January 19, 2024, 01:55:10 am by d95err |
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NYD one bottle mic preamp questions
Started by Toxophilite |
11 Replies
3661 Views |
January 19, 2024, 12:10:28 am by WimWalther |
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Custom build in Hammond Al Chassis
Started by Raybob |
2 Replies
1894 Views |
January 18, 2024, 08:57:43 pm by Raybob |
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6 Replies
2829 Views |
January 18, 2024, 12:35:18 pm by PRR |
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5879 in a combo?
Started by clyde |
6 Replies
2575 Views |
January 18, 2024, 07:55:22 am by Lectroid |
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Marshall lighted switch
Started by Lectroid |
2 Replies
1998 Views |
January 18, 2024, 07:19:54 am by Lectroid |
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Output Transformer Question
Started by separateness |
6 Replies
2687 Views |
January 18, 2024, 06:58:40 am by shooter |
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22 Replies
6356 Views |
January 18, 2024, 04:34:44 am by pdf64 |
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changing bias vari to the roach
Started by proaudioguy |
26 Replies
6619 Views |
January 18, 2024, 02:41:49 am by proaudioguy |
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6V6 triode cool tone !!!!
Started by Colas LeGrippa |
7 Replies
3350 Views |
January 17, 2024, 04:06:37 pm by 66Strat |
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Adding Reverb
Started by jewishjay |
3 Replies
2077 Views |
January 17, 2024, 10:11:14 am by jewishjay |
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Sourcing Dual Concentric Knobs
Started by jordan86 |
11 Replies
5696 Views |
January 16, 2024, 11:54:50 pm by XYZGnomon |
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OT Proximity to Preamp..?
Started by tdvt |
2 Replies
1841 Views |
January 16, 2024, 05:53:12 pm by tdvt |
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Another OT question
Started by AlNewman |
6 Replies
2668 Views |
January 16, 2024, 04:05:16 pm by AlNewman |
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Need treble pot value
Started by punkykatt |
5 Replies
2472 Views |
January 16, 2024, 02:38:04 pm by punkykatt |
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2 Replies
1852 Views |
January 15, 2024, 07:37:52 pm by PRR |
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30 Replies
6158 Views |
January 15, 2024, 04:34:36 pm by shooter |
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12ax7 mic. preamp overdriving itself
Started by Toxophilite |
18 Replies
4619 Views |
January 15, 2024, 11:30:42 am by pdf64 |
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17 Replies
4136 Views |
January 15, 2024, 09:48:17 am by dwinstonwood |
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Oscilloscopes advice.
Started by slash1986 |
6 Replies
3033 Views |
January 15, 2024, 04:37:13 am by Latole |
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2 Replies
1910 Views |
January 14, 2024, 08:31:31 pm by HotBluePlates |
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26 Replies
5859 Views |
January 14, 2024, 05:15:52 am by pdf64 |
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2 Replies
3299 Views |
January 14, 2024, 01:01:45 am by pullshocks |
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Sano 300 - A pair of questions
Started by kagliostro |
6 Replies
2627 Views |
January 13, 2024, 06:10:44 pm by PRR |
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0 Replies
1624 Views |
January 13, 2024, 05:54:14 pm by sluckey |
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