Welcome To the Hoffman Amplifiers Forum
March 11, 2026, 02:13:39 pm
Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 02:13:39 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| wsscott, Yosser and 62 Guests are viewing this board. | ||||
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swapping 5u4gb to gz34
Started by Pochie45566 |
6 Replies
4799 Views |
February 23, 2018, 02:42:32 pmby mresistor |
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119 Replies
31766 Views |
February 23, 2018, 11:35:23 am by pompeiisneaks |
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Ever Seen one of these Flip Flops?
Started by bnwitt |
5 Replies
3670 Views |
February 23, 2018, 11:23:53 am by bnwitt |
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Stromberg Carlson monoblock
Started by Colas LeGrippa |
11 Replies
5278 Views |
February 22, 2018, 06:59:10 pm by PRR |
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Fender - Model 26
Started by reddead83 |
7 Replies
5662 Views |
February 22, 2018, 05:47:41 pm by reddead83 |
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AO-43 single channel vibrolux reverb
Started by Toxophilite |
5 Replies
3912 Views |
February 22, 2018, 05:26:00 pm by dude |
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12 Replies
6012 Views |
February 22, 2018, 09:06:11 am by mresistor |
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Few questions about stereo Plexi project
Started by Rp3703 |
8 Replies
4325 Views |
February 21, 2018, 10:11:38 pm by sluckey |
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1969 Soundtronics M-A200A bias Wiring
Started by plexi50 |
8 Replies
3732 Views |
February 21, 2018, 07:36:53 pm by sluckey |
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Parallel
Started by davidwpack |
4 Replies
3055 Views |
February 21, 2018, 07:26:04 pm by davidwpack |
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4 Replies
3751 Views |
February 20, 2018, 12:01:34 pm by VMS |
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2 Replies
3026 Views |
February 20, 2018, 10:35:40 am by sluckey |
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Regal Model 500
Started by Toxophilite |
16 Replies
9163 Views |
February 19, 2018, 09:17:33 pm by Toxophilite |
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Substituting 12AX7 for 6SF5
Started by Apexelectric |
24 Replies
8751 Views |
February 19, 2018, 09:07:15 pm by sluckey |
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First power on question.
Started by chocopower |
3 Replies
2873 Views |
February 19, 2018, 05:51:40 pm by kagliostro |
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Time to Build Another - Revibe !!!!!!
Started by Blind Lemon |
2 Replies
2806 Views |
February 19, 2018, 03:36:28 pm by Blind Lemon |
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5 Replies
5168 Views |
February 19, 2018, 05:51:10 am by plumcrazyfx |
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Supply Voltage Switching Question
Started by a90s2cs |
5 Replies
3403 Views |
February 18, 2018, 09:51:13 pm by a90s2cs |
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Ugly stereo amp (in progress)
Started by 92Volts |
16 Replies
6472 Views |
February 18, 2018, 07:54:35 pm by PRR |
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Neat Little Amp
Started by TIMBO |
3 Replies
3368 Views |
February 18, 2018, 07:10:32 pm by Ritchie200 |
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8908 power tubes
Started by Colas LeGrippa |
17 Replies
11776 Views |
February 18, 2018, 04:23:29 pm by kagliostro |
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Adding a second channel
Started by dunner84 |
18 Replies
5622 Views |
February 18, 2018, 02:08:46 pm by dunner84 |
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avoiding inrush
Started by shooter |
9 Replies
4527 Views |
February 18, 2018, 10:17:07 am by shooter |
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5 Replies
4187 Views |
February 17, 2018, 11:54:28 pm by ALBATROS1234 |
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5E3 want more headroom - GZ31 and 2 6L6s?
Started by leevc5 |
7 Replies
4133 Views |
February 17, 2018, 06:36:17 pm by tubeswell |
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Heater wire power tube Conundrum
Started by capmando |
7 Replies
4072 Views |
February 16, 2018, 11:58:27 pm by capmando |
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Blackface Amp (HSCDR)
Started by purpletele |
1 Replies
2664 Views |
February 16, 2018, 06:16:41 pm by mresistor |
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7 Replies
6039 Views |
February 16, 2018, 03:55:44 pm by Garrett335 |
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1971 Plush 1060s problem.
Started by 404notfound |
4 Replies
5001 Views |
February 16, 2018, 02:03:44 pm by PRR |
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filament wiring
Started by dude |
3 Replies
3360 Views |
February 16, 2018, 01:53:45 pm by dennyg |
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observation explanation please
Started by dennyg |
17 Replies
4938 Views |
February 16, 2018, 09:18:01 am by sluckey |
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Marshall ish build issues
Started by Captain chunkulus « 1 2 » |
65 Replies
16622 Views |
February 16, 2018, 08:51:39 am by Captain chunkulus |
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Higher Wattage Amp in Stout Chassis
Started by Ledzepp007 |
4 Replies
3245 Views |
February 16, 2018, 06:00:39 am by Ed_Chambley |
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1 Replies
3036 Views |
February 16, 2018, 01:08:51 am by PRR |
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Custom Cab
Started by daveneary |
3 Replies
2954 Views |
February 15, 2018, 04:55:11 pm by daveneary |
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Princeton Rev. Bias Circuit problem
Started by mresistor |
2 Replies
3306 Views |
February 15, 2018, 04:03:52 pm by mresistor |
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Another DeLuxe
Started by 2deaf |
11 Replies
5113 Views |
February 15, 2018, 01:34:59 pm by VMS |
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9 Replies
6105 Views |
February 15, 2018, 01:17:05 pm by VMS |
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10 Replies
5574 Views |
February 15, 2018, 12:19:37 pm by mresistor |
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Grid stopper or coupling cap?
Started by ALBATROS1234 |
2 Replies
3282 Views |
February 14, 2018, 02:02:48 pm by jojokeo |
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Hoffman Princeton reverb rectifier help
Started by Paulycoo |
2 Replies
2870 Views |
February 14, 2018, 01:48:12 pm by Paulycoo |
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114 Replies
28947 Views |
February 14, 2018, 09:28:13 am by Willabe |
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5 Replies
4297 Views |
February 13, 2018, 11:11:25 pm by dr.earlfunkton |
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Blues Jr Conversion Line Out
Started by HARodgers |
3 Replies
4076 Views |
February 13, 2018, 10:29:09 pm by 2deaf |
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Wrong e-caps or not ??
Started by kagliostro |
5 Replies
3586 Views |
February 13, 2018, 12:08:53 pm by kagliostro |
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4 Replies
4344 Views |
February 13, 2018, 06:17:19 am by Diverted |
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Fender 6G14-A with harmonic tremolo
Started by guitardude57 |
6 Replies
4189 Views |
February 13, 2018, 03:43:57 am by sluckey |
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Preamp Sag Dilemma
Started by zendragon63 |
9 Replies
4344 Views |
February 12, 2018, 10:09:28 pm by zendragon63 |
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EL84 amp hum in triode mode
Started by punkykatt |
10 Replies
6269 Views |
February 12, 2018, 02:01:06 pm by punkykatt |
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The Valve Wizards preamp layout
Started by pompeiisneaks |
9 Replies
4407 Views |
February 11, 2018, 10:47:45 pm by sluckey |
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