Welcome To the Hoffman Amplifiers Forum
July 25, 2026, 07:43:12 am
Welcome To the Hoffman Amplifiers ForumJuly 25, 2026, 07:43:12 am | ||
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10 Replies
7640 Views |
February 25, 2024, 10:14:18 amby Woolybolly |
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Math question (NFB calculations)
Started by dwinstonwood |
2 Replies
3923 Views |
February 25, 2024, 10:13:19 am by dwinstonwood |
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86 Replies
34671 Views |
February 25, 2024, 09:59:16 am by Papa Jim |
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42 Replies
25594 Views |
February 25, 2024, 09:45:59 am by pdf64 |
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Fixed bias el84 jcm800
Started by AlNewman |
18 Replies
10342 Views |
February 24, 2024, 09:37:15 pm by WimWalther |
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4 Replies
5425 Views |
February 24, 2024, 08:41:58 pm by PRR |
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3 Replies
4780 Views |
February 23, 2024, 10:39:02 pm by PRR |
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Neg Bias Voltage
Started by J Rindt |
31 Replies
12696 Views |
February 23, 2024, 09:49:30 pm by sluckey |
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Thermistor question
Started by Diverted |
1 Replies
4208 Views |
February 23, 2024, 03:36:34 pm by BrownIsound |
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9 Replies
7345 Views |
February 22, 2024, 09:46:45 pm by ALBATROS1234 |
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7 Replies
5751 Views |
February 22, 2024, 06:55:44 am by EL34 |
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5 Replies
5496 Views |
February 21, 2024, 07:01:01 pm by pdf64 |
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25 Replies
11414 Views |
February 21, 2024, 05:50:34 pm by PRR |
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Any Stereo Builds to Share?
Started by tdvt |
12 Replies
7134 Views |
February 21, 2024, 03:06:33 pm by kagliostro |
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16 Replies
11021 Views |
February 21, 2024, 01:35:51 pm by WimWalther |
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1760J OT for Blues Jr.
Started by roseblood11 |
3 Replies
4482 Views |
February 21, 2024, 01:33:47 pm by roseblood11 |
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9 Replies
6980 Views |
February 21, 2024, 09:12:13 am by ALBATROS1234 |
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39 Replies
16169 Views |
February 21, 2024, 02:50:35 am by Lambertini |
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Gretsch Fury 6169 on the bench
Started by TubeGeek |
33 Replies
13406 Views |
February 20, 2024, 05:50:03 pm by TubeGeek |
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Setting up a bias type tremolo circuit
Started by WimWalther |
29 Replies
13939 Views |
February 20, 2024, 03:16:44 pm by HotBluePlates |
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Crown GPA-25 -- 1950s/1960s PA amp
Started by passaloutre |
1 Replies
4131 Views |
February 20, 2024, 11:28:36 am by passaloutre |
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10 Replies
6345 Views |
February 20, 2024, 10:26:07 am by 66Strat |
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What resistor is this? Safe to remove?
Started by Mr.Death |
17 Replies
8970 Views |
February 19, 2024, 10:33:18 pm by sluckey |
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Pots grounding
Started by Lambertini |
17 Replies
10000 Views |
February 19, 2024, 12:53:39 pm by HotBluePlates |
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Tweaking the v1 gain stage
Started by pbman1953 |
8 Replies
6215 Views |
February 19, 2024, 11:38:22 am by pbman1953 |
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Mesaboogie Mark III Simul-Class
Started by Leevi |
1 Replies
4081 Views |
February 19, 2024, 10:39:58 am by Leevi |
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Tore this apart
Started by proaudioguy |
2 Replies
4205 Views |
February 19, 2024, 03:27:09 am by WimWalther |
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2144 60/30
Started by TIMBO |
3 Replies
4346 Views |
February 17, 2024, 04:03:09 am by TIMBO |
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New to me Deluxe Reverb A1172
Started by proaudioguy |
33 Replies
13983 Views |
February 16, 2024, 09:42:38 am by 66Strat |
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Voltage doubler grounding
Started by isaac_teller |
6 Replies
5724 Views |
February 15, 2024, 04:24:50 pm by WimWalther |
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Dumble input jack wiring?
Started by idsnowdog |
4 Replies
5066 Views |
February 15, 2024, 11:03:52 am by idsnowdog |
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Adding a direct out to a DualLite amp
Started by Bash |
0 Replies
4205 Views |
February 15, 2024, 08:23:06 am by Bash |
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Grounding an aluminium chassis?
Started by Eythor |
5 Replies
6530 Views |
February 15, 2024, 05:27:35 am by tubeswell |
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Princeton Reverb Reissue Rebuild
Started by Jrusto |
2 Replies
4636 Views |
February 14, 2024, 07:28:40 pm by Jrusto |
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Hardware Mounting
Started by Nathan |
7 Replies
5772 Views |
February 14, 2024, 06:41:30 pm by WimWalther |
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Standby switch location
Started by tubenit |
7 Replies
6091 Views |
February 14, 2024, 11:35:26 am by tubenit |
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2 Replies
3875 Views |
February 14, 2024, 06:08:21 am by xochipelli |
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14 Replies
8537 Views |
February 14, 2024, 12:02:14 am by sluckey |
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Kalamazoo to Marshall Mod
Started by SteveInMN |
22 Replies
9331 Views |
February 13, 2024, 03:13:17 pm by PRR |
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Garnet Pro 200 power section oddness
Started by hiegdk |
7 Replies
6087 Views |
February 12, 2024, 11:58:29 pm by hiegdk |
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Princeton 6G2 from Hammond L-100 (A-043) chassis
Started by WimWalther « 1 2 3 » |
101 Replies
45181 Views |
February 12, 2024, 10:08:17 pm by WimWalther |
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Anode voltage power supply.
Started by slash1986 |
6 Replies
5614 Views |
February 11, 2024, 09:18:09 pm by WimWalther |
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PT wiring Hammond 270DAX
Started by tubenit |
6 Replies
5957 Views |
February 11, 2024, 02:28:50 pm by scstill |
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21 Replies
13062 Views |
February 10, 2024, 11:34:28 am by kagliostro |
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Hiwatt style wiring
Started by hiegdk |
13 Replies
8163 Views |
February 08, 2024, 07:40:09 pm by hiegdk |
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Treble Boost Circuit
Started by clyde |
1 Replies
4805 Views |
February 08, 2024, 03:55:01 pm by AlNewman |
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Tremolo questions
Started by ALBATROS1234 |
4 Replies
5180 Views |
February 08, 2024, 03:39:08 pm by Brownie |
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Deluxe Rivera mods
Started by joesatch |
4 Replies
8152 Views |
February 08, 2024, 12:47:36 pm by mresistor |
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Visual identification of tubes?
Started by hiegdk |
4 Replies
5355 Views |
February 08, 2024, 02:04:45 am by tubeswell |
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24 Replies
9877 Views |
February 07, 2024, 07:53:53 pm by Locrian99 |
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