Amplifier Discussion

Welcome to Solid State Guitar Amp Forum | DIY Guitar Amplifiers. Please login or sign up.

Forever 1 Hour 1 Day 1 Week 1 Month

Login with username, password and session length

Forgot your password?

[J M Fahey]

• Preamp volume pot by J M Fahey
  [Today at 01:16:11 AM]
• Crate Chassis-visceration by flester
  [September 13, 2026, 09:19:12 AM]
• Boss GE7 no power by flester
  [September 12, 2026, 02:32:16 PM]
• Trying to amplify signal by g1
  [September 12, 2026, 02:28:32 PM]
• Frontman 15: Type 241 vs Type 495 by Chorch Cluni
  [September 12, 2026, 09:54:10 AM]

Crate GX-20M

Started by DaRedFox

Replies: 5
Views: 676

May 10, 2026, 09:28:00 AM
by Jazz P Bass

Been doing some rudimentary sims of current feeedback + speaker.

Started by Kaz Kylheku

Replies: 4
Views: 945

May 09, 2026, 10:25:55 AM
by g1

Help with transistors

Started by Den.

Replies: 4
Views: 615

May 01, 2026, 09:17:39 AM
by joecool85

How I fixed the reverb tank in a Peavey Special 212

Started by aquataur

Replies: 0
Views: 310

April 23, 2026, 02:05:48 PM
by aquataur

What glue is used to secure large components on the PCB?

Started by aquataur

Replies: 8
Views: 856

April 23, 2026, 11:30:11 AM
by Tassieviking

Peavey Special 212 Consolidated design-theory-hack questions.

Started by silverfox

Replies: 11
Views: 1,254

April 15, 2026, 10:42:26 AM
by aquataur

30W Crafter DSP1 Acoustic Guitar Amp - constant level hum underlies output

Started by robdean

Pages1 2

Replies: 29
Views: 25,338

April 11, 2026, 10:42:07 AM
by g1

Crafter DSP1 guitar amplifier

Started by Synctime

Replies: 1
Views: 274

April 07, 2026, 11:35:29 AM
by g1

GK 200GT Head

Started by brucedean

Replies: 3
Views: 476

April 01, 2026, 10:22:40 AM
by g1

Fender Deluxe 85 cutting out: fix update

Started by geertjacobs

Replies: 3
Views: 11,476

March 25, 2026, 08:40:54 PM
by g1

Fixing a 30-year-old Crate

Started by scissortail

Pages1 2

Replies: 16
Views: 1,936

March 25, 2026, 06:27:57 AM
by phatt

Modifying a First Act MA104

Started by Koreth

Pages1 2 3 4

Replies: 48
Views: 74,272

March 18, 2026, 11:33:14 AM
by g1

Fender '68 Custom Deluxe Power Transformer Swap

Started by TomCarlos

Replies: 4
Views: 1,894

March 12, 2026, 04:20:30 PM
by TomCarlos

1/4 watt dumble

Started by smsuryan

Replies: 4
Views: 2,201

March 09, 2026, 05:33:01 PM
by joecool85

Peavey Rage 158 modification

Started by bcsuther

Replies: 4
Views: 14,816

March 03, 2026, 12:18:01 PM
by lcseh

Marshall Valvestate 8020 any useful mods

Started by MasterVolume

Replies: 0
Views: 2,900

February 26, 2026, 06:15:18 AM
by MasterVolume

94-92-01 9508 Transformer Replacement

Started by hankspencer

Replies: 3
Views: 6,739

February 17, 2026, 02:22:10 PM
by g1

Nice fix: RF bypass cap in Alesis RA-100 input stage.

Started by Kaz Kylheku

Replies: 0
Views: 2,559

February 16, 2026, 06:34:15 PM
by Kaz Kylheku

Guitar Amp Wiring Notes Link

Started by R.G.

Replies: 4
Views: 4,310

February 10, 2026, 09:10:32 AM
by joecool85

Output impedance in mixed-mode feedback production guitar amps: kinda high?

Started by Kaz Kylheku

Replies: 6
Views: 6,279

January 08, 2026, 02:02:28 AM
by Kaz Kylheku