Welcome To the Hoffman Amplifiers Forum
December 08, 2025, 09:59:26 am
Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 09:59:26 am | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 141 Guests are viewing this board. | ||||
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Cri-Call by HIFI Valve Baby Alarm Unit
Started by Rontone |
15 Replies
3828 Views |
March 14, 2025, 04:34:05 pmby shooter |
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tube effects loop schematic
Started by Tone Junkie |
19 Replies
20135 Views |
March 13, 2025, 12:10:22 pm by Latole |
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15 Replies
2498 Views |
March 12, 2025, 06:56:22 pm by roarshock |
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Single jack 5E3 on a 5F2 chassis
Started by Brownie |
11 Replies
3349 Views |
March 12, 2025, 05:30:00 pm by tubeswell |
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8 Replies
1634 Views |
March 11, 2025, 07:16:32 pm by Markbou |
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6 Replies
1908 Views |
March 10, 2025, 05:22:55 am by fkitch |
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silver jubilee turret layout
Started by joesatch |
5 Replies
1471 Views |
March 09, 2025, 10:16:51 pm by glass54 |
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Magnatone MP5 - Tremolo help...
Started by O-Fuzz |
24 Replies
8242 Views |
March 09, 2025, 03:28:14 pm by Zoe Warren |
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Vibrolux Reverb OT Taps and volume
Started by Skeeter_pdx |
16 Replies
2781 Views |
March 09, 2025, 12:00:47 pm by Willabe |
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5 Replies
1782 Views |
March 08, 2025, 08:51:36 am by bmccowan |
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8 Replies
1942 Views |
March 07, 2025, 09:19:01 pm by Skeeter_pdx |
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22 Replies
3552 Views |
March 07, 2025, 09:02:50 pm by Platefire |
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11 Replies
3247 Views |
March 07, 2025, 07:04:20 pm by tubeswell |
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47uf/50v caps in place of 47uf/100v cap
Started by punkykatt |
3 Replies
1136 Views |
March 07, 2025, 06:05:01 pm by punkykatt |
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Fender Gibbs Reverb pan questions
Started by mresistor |
8 Replies
2093 Views |
March 07, 2025, 03:42:58 am by Bieworm |
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23 Replies
4451 Views |
March 06, 2025, 04:31:47 pm by HotBluePlates |
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5F1 first build preamp voltages issue
Started by FREYES_7 |
2 Replies
1010 Views |
March 06, 2025, 07:18:16 am by FREYES_7 |
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LED bias and negative feedback
Started by passaloutre |
4 Replies
1300 Views |
March 05, 2025, 04:34:02 pm by passaloutre |
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filter cap values, traynor yba4
Started by colorado |
2 Replies
1043 Views |
March 05, 2025, 10:03:54 am by shooter |
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3 Replies
1131 Views |
March 05, 2025, 05:40:14 am by Merlin |
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Schematics and layout drawings.
Started by Willabe |
28 Replies
6081 Views |
March 04, 2025, 01:00:20 pm by passaloutre |
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Mesa Mark II C (sp10a) export
Started by 74-335 |
4 Replies
1488 Views |
March 04, 2025, 10:24:34 am by acheld |
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Mini TOS SE with FX Loop Build
Started by PharmRock |
7 Replies
1751 Views |
March 02, 2025, 08:57:15 pm by PharmRock |
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6N5P Russian made
Started by Cliff Rogers |
3 Replies
1875 Views |
March 02, 2025, 09:56:53 am by jansch |
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Hello from a new member
Started by stw307 |
37 Replies
8490 Views |
March 02, 2025, 03:40:43 am by stw307 |
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6 Replies
1613 Views |
March 02, 2025, 02:32:47 am by Latole |
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L pad passive attenuator
Started by Snake5150 |
3 Replies
1288 Views |
February 28, 2025, 06:28:20 pm by Merlin |
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8 Replies
1781 Views |
February 28, 2025, 01:37:49 pm by Redwood |
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Help identifying heavy hum
Started by kasperbergholt |
7 Replies
1671 Views |
February 28, 2025, 01:28:28 pm by tubeswell |
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9 Replies
2541 Views |
February 28, 2025, 12:15:59 pm by shooter |
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Triwec Output Transformer info needed
Started by wsscott |
3 Replies
1194 Views |
February 28, 2025, 08:09:51 am by wsscott |
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My First Tube Amp Build
Started by mar2112 |
9 Replies
2114 Views |
February 27, 2025, 10:16:25 pm by mar2112 |
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3 Prong Grounded Cord Reference
Started by plexi50 |
4 Replies
1567 Views |
February 27, 2025, 09:23:37 am by jjasilli |
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Testing output transformer
Started by fossilshark |
2 Replies
1344 Views |
February 26, 2025, 02:16:09 pm by kagliostro |
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134 Replies
21880 Views |
February 25, 2025, 07:55:54 pm by Richs1979 |
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23 Replies
4044 Views |
February 25, 2025, 07:38:36 pm by Willabe |
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Fender Custom 68’ Pro Reverb findings
Started by goldstache |
0 Replies
956 Views |
February 25, 2025, 05:16:35 pm by goldstache |
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DIY attenuator build
Started by Snake5150 |
11 Replies
2259 Views |
February 25, 2025, 11:42:19 am by 66Strat |
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capactior/ ESR meter recommendations
Started by joesatch |
3 Replies
1524 Views |
February 25, 2025, 10:50:20 am by Willabe |
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Fixed biasing el84s
Started by jordan86 |
8 Replies
1931 Views |
February 25, 2025, 05:46:40 am by Merlin |
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Master volume and grid leak resistors
Started by Snake5150 |
2 Replies
1172 Views |
February 25, 2025, 04:28:26 am by tubeswell |
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Matchless Clubman build
Started by didierleclair |
11 Replies
2803 Views |
February 24, 2025, 06:25:19 pm by pdf64 |
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DuKane Super Amp Build
Started by dmp |
2 Replies
1330 Views |
February 24, 2025, 11:49:30 am by dmp |
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Impedance selector wiring
Started by Snake5150 |
1 Replies
1085 Views |
February 23, 2025, 04:01:16 pm by SEL49 |
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Silvertone 1472 0n the bench(Platefire)
Started by rafe |
27 Replies
3974 Views |
February 23, 2025, 02:45:00 pm by Platefire |
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Power Supply Issue
Started by TomG |
6 Replies
1398 Views |
February 22, 2025, 08:10:54 pm by TomG |
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Reverb Circuit Recommendations
Started by Thisismyname |
12 Replies
2485 Views |
February 22, 2025, 10:06:18 am by Thisismyname |
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lubricating a sliding eq
Started by pbman1953 |
5 Replies
1349 Views |
February 22, 2025, 08:16:28 am by shooter |
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super original 64 vibrochamp recap??
Started by bullkelp |
33 Replies
3650 Views |
February 22, 2025, 02:56:52 am by Latole |
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8K OT with EL34's how?
Started by joesatch |
26 Replies
4005 Views |
February 21, 2025, 11:07:53 am by jojokeo |
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