Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 04:00:46 pm | ||
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| dogburn, passaloutre, Glenn and 87 Guests are viewing this board. | ||||
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Airline model 9004 schematic
Started by HighAndDry |
13 Replies
5835 Views |
by PRR |
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Negative Feedback Question
Started by dude |
18 Replies
6852 Views |
by dude |
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23 Replies
8261 Views |
by Joeriz |
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Blackstar ISF
Started by Leevi |
4 Replies
3932 Views |
by pompeiisneaks |
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Kagliostro 12AU7 push pull schematic
Started by Ritchie200 « 1 2 » |
61 Replies
32527 Views |
by PRR |
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6MB8 Mini-Bassman Standard
Started by purpletele « 1 2 » |
62 Replies
23717 Views |
by purpletele |
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Modding/Converting 100w Carlsbro amp
Started by JayCobie |
11 Replies
7159 Views |
by MartinB |
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2 Replies
3301 Views |
by deaftone |
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PI Plate Volts High
Started by fdesalvo |
6 Replies
4085 Views |
by fdesalvo |
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50K trimpot wiring in JCM800
Started by SleepLess |
11 Replies
4760 Views |
by sluckey |
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7 Replies
4006 Views |
by ratgon |
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Tremolo intensity too deep or intense
Started by dude |
5 Replies
3971 Views |
by kagliostro |
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5 Replies
4419 Views |
by frpax |
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Hoffmann 5F6A bias circuit
Started by Bangy |
13 Replies
6734 Views |
by Bangy |
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Amp blew fuse, now hummmmms. Bad caps?
Started by jeff |
20 Replies
7697 Views |
by jeff |
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2 Replies
3000 Views |
by kagliostro |
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CMB. 70s Orange/Matamp clone
Started by chocopower |
19 Replies
8314 Views |
by chocopower |
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Bias Voltage Transformer
Started by J Rindt |
10 Replies
5521 Views |
by J Rindt |
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HoSo56 Minimalist
Started by Deric |
4 Replies
4010 Views |
by tubenit |
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16 Replies
9838 Views |
by HotBluePlates |
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Homemade Orange Tiny Terror clone
Started by sarkipinty |
3 Replies
6618 Views |
by birt |
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16 Replies
8864 Views |
by Sonny ReVerb |
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Amp construction methods
Started by fossilshark |
5 Replies
4775 Views |
by Ed_Chambley |
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68 Super Reverb doing very strange things
Started by TerryD |
4 Replies
3289 Views |
by TerryD |
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30 Replies
10882 Views |
by kagliostro |
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5879 tube examples
Started by tubenit |
19 Replies
14223 Views |
by jojokeo |
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Ideal 12ax7 bias
Started by Colas LeGrippa |
12 Replies
8966 Views |
by PRR |
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Stereo 5f2a build - TMB stack issue
Started by cusebassman |
19 Replies
7691 Views |
by cusebassman |
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How do you check an output transformer
Started by TerryD |
7 Replies
3970 Views |
by Bluemeany |
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Suggestions needed for new project
Started by frpax |
8 Replies
4398 Views |
by SILVERGUN |
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New build eating power tubes
Started by GeorgeG |
24 Replies
8064 Views |
by GeorgeG |
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13 Replies
5200 Views |
by drgonzonm |
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MOVED: Davoli Krundal D8066 schematic ?
Started by Willabe |
0 Replies
3000 Views |
by Willabe |
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Hoffman 100W Plexi Power Supply Layout
Started by Ledzepp007 |
4 Replies
3494 Views |
by sluckey |
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0 Replies
2718 Views |
by Willabe |
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0 Replies
3018 Views |
by Willabe |
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Help with Bias on a 68 Super Reverb
Started by TerryD |
4 Replies
3724 Views |
by TerryD |
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Adding a gain stage
Started by fossilshark |
21 Replies
13649 Views |
by Crate50watt |
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transformer help please
Started by jase128 |
4 Replies
3354 Views |
by jase128 |
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Another go at this Tremolo.....
Started by TIMBO |
12 Replies
4096 Views |
by tubenit |
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23 Replies
7405 Views |
by jeff |
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EL34 tubes with 540v screen voltage
Started by chocopower |
34 Replies
13719 Views |
by chocopower |
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Need more treble
Started by fossilshark |
4 Replies
3674 Views |
by DummyLoad |
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5 Replies
9746 Views |
by smackoj |
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18w project
Started by jay_back_in_chicago « 1 2 » |
51 Replies
16550 Views |
by Willabe |
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0 Replies
2540 Views |
by Willabe |
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Fine tuning a 12ax7
Started by Colas LeGrippa |
9 Replies
4865 Views |
by Colas LeGrippa |
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MOVED: Fulltone TTE pre-amp schematic?
Started by Willabe |
0 Replies
2571 Views |
by Willabe |
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47 Replies
15050 Views |
by jase128 |
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9 Replies
4838 Views |
by HotBluePlates |
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