Welcome To the Hoffman Amplifiers Forum
March 12, 2026, 04:56:55 am
Welcome To the Hoffman Amplifiers ForumMarch 12, 2026, 04:56:55 am | ||
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New 5f2a build oscillation Issue
Started by dunner84 |
36 Replies
9843 Views |
January 17, 2016, 01:10:11 pmby Paul1453 |
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Fender reverb unit
Started by Big chief |
6 Replies
3538 Views |
January 16, 2016, 06:32:12 pm by Mike_J |
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Sparks flying in power tubes...
Started by markmalin |
27 Replies
16123 Views |
January 16, 2016, 03:48:46 pm by markmalin |
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31 Replies
11888 Views |
January 16, 2016, 12:47:40 pm by silverfox |
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Salvaged Transformer Help
Started by ncusack |
7 Replies
5017 Views |
January 15, 2016, 08:00:18 am by eleventeen |
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746 Replies
255567 Views |
January 14, 2016, 03:49:18 pm by sluckey |
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18 Replies
16373 Views |
January 14, 2016, 01:20:42 pm by jane_t steele |
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Matchless Spitfire Build Troubleshooting
Started by silendt |
31 Replies
16964 Views |
January 14, 2016, 12:31:26 am by MFowler |
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4 gain stage comparison
Started by tubenit |
12 Replies
6168 Views |
January 13, 2016, 11:39:31 pm by PRR |
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4 Replies
2979 Views |
January 13, 2016, 11:22:50 pm by bbbbass |
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princeton reverb AA1164 new build
Started by khansen810 |
3 Replies
2825 Views |
January 12, 2016, 06:35:05 pm by EL34 |
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Speaker jack mod
Started by Jerzey2222 |
16 Replies
4739 Views |
January 12, 2016, 01:25:05 pm by MFowler |
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Some pointers on my breadboard?
Started by hesamadman |
5 Replies
3183 Views |
January 11, 2016, 08:38:44 pm by Paul1453 |
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Input jacks Fender style
Started by uki |
10 Replies
8832 Views |
January 10, 2016, 10:34:29 pm by uki |
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Bogen MX30A tweaker amp
Started by glassesnvests |
19 Replies
8956 Views |
January 10, 2016, 01:44:05 pm by PRR |
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Fixed bias help
Started by goldstache |
6 Replies
2951 Views |
January 10, 2016, 09:47:04 am by goldstache |
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OP Amp EQ circuit for Tube Amp
Started by silverfox |
12 Replies
6108 Views |
January 09, 2016, 02:39:18 pm by silverfox |
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Whistling causes
Started by Paul1453 |
22 Replies
7938 Views |
January 09, 2016, 10:48:06 am by Paul1453 |
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One Tube 6GW8 Reverb
Started by TIMBO |
2 Replies
5502 Views |
January 09, 2016, 06:46:36 am by tubenit |
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Excessive heat and venting
Started by hesamadman |
18 Replies
6400 Views |
January 08, 2016, 09:06:39 pm by PRR |
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2 Replies
2465 Views |
January 07, 2016, 01:14:07 pm by Skip Hagey |
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KT66 Push Pull Output Transformer
Started by Ed_Chambley |
21 Replies
17477 Views |
January 07, 2016, 12:58:34 pm by Paul1453 |
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13 Replies
5628 Views |
January 07, 2016, 06:03:09 am by EL34 |
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2 Replies
3254 Views |
January 06, 2016, 06:08:33 pm by PRR |
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PT ?
Started by okguitarman |
2 Replies
2277 Views |
January 04, 2016, 10:22:02 pm by okguitarman |
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Troublesome silverface Champ
Started by alange5 |
12 Replies
6684 Views |
January 04, 2016, 10:00:12 pm by PRR |
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15 Replies
16909 Views |
January 04, 2016, 03:17:42 pm by shooter |
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iron from an ECLL800 amp
Started by birt |
16 Replies
12802 Views |
January 03, 2016, 04:19:37 pm by kagliostro |
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Is this dangerous?
Started by TerryD |
3 Replies
3036 Views |
January 03, 2016, 03:35:17 pm by TerryD |
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SE KT66 amp - which OT?
Started by Pete1950 |
15 Replies
9964 Views |
January 03, 2016, 11:17:33 am by shooter |
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4 Replies
3229 Views |
January 02, 2016, 07:28:10 pm by TubeGeek |
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Princeton build from he!!
Started by ElPedro |
4 Replies
2949 Views |
January 02, 2016, 08:33:03 am by HotBluePlates |
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OT Primary to Secondary ratio
Started by Willabe |
8 Replies
3389 Views |
January 02, 2016, 08:21:51 am by HotBluePlates |
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4 Replies
3673 Views |
January 01, 2016, 06:39:22 pm by PRR |
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6V6 plexi (with 18 watt preamp) question
Started by dude |
10 Replies
5326 Views |
January 01, 2016, 07:36:46 am by MFowler |
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DIASON HYBRID AMP
Started by TIMBO |
26 Replies
9411 Views |
December 31, 2015, 09:05:21 pm by TIMBO |
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D'Lite with 6P1P
Started by adamG |
3 Replies
6083 Views |
December 31, 2015, 04:40:56 pm by PRR |
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Do I have in "essence" 1 meg already?
Started by TerryD |
1 Replies
2620 Views |
December 31, 2015, 12:17:16 pm by Willabe |
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5E3 plate voltages too low?
Started by markmalin |
8 Replies
8285 Views |
December 31, 2015, 10:07:00 am by markmalin |
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9 Replies
5103 Views |
December 30, 2015, 09:53:41 pm by TerryD |
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Harmonilux Reverb AA964???
Started by Toxophilite « 1 2 3 4 » |
168 Replies
36092 Views |
December 30, 2015, 06:05:24 pm by Toxophilite |
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9 Replies
4307 Views |
December 30, 2015, 07:40:16 am by mresistor |
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Deluxe Reverb AB763 Tremolo Issues
Started by plaidzebra |
9 Replies
3822 Views |
December 29, 2015, 09:06:16 pm by plaidzebra |
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29 Replies
9693 Views |
December 29, 2015, 12:21:48 pm by jojokeo |
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Bias not right on Princeton Reverb
Started by ElPedro |
5 Replies
4411 Views |
December 29, 2015, 08:31:20 am by sluckey |
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3 Replies
3171 Views |
December 28, 2015, 11:23:35 pm by Fresh_Start |
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11 Replies
4860 Views |
December 28, 2015, 04:26:34 pm by MFowler |
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Bias setting??
Started by TIMBO |
17 Replies
7051 Views |
December 28, 2015, 02:58:26 pm by kagliostro |
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Deluxe Reverb Build for 240V
Started by Homebelly |
1 Replies
2056 Views |
December 27, 2015, 07:27:42 pm by EL34 |
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An interesting twist
Started by TIMBO |
8 Replies
4177 Views |
December 27, 2015, 02:52:47 pm by kagliostro |
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