- Help! My amp sounds like a ring-modulator.
- Motorboating vibrato circuit
- Speaker loads
- Avt275 powers up but no sound
- Biasing with a "BiasProbe" basic
- Setting the Mosfet bias on an Ampeg SVT 3 PRO
- Ampeg B2 RE
- What size fuse to put in O.T. center-tap?
- Silvertone 1474 questions
- Marshall Valvestate vs100 Problem
- weird thing happens on opamp
- SFDR w/ MV has very low output volume...Any ideas?
- Vibrolux Reverb Bias?
- Peavey Classic 30
- Marshall valvestate 8080 how to get more reverb
- Buzzing Blues Junior
- Panel meter wiring
- Combo or Head/Cab?
- Hartke 5000 help ?
- Fender "The Twin" Schematic
- Marshall JTM60 Output mystery??
- Fender SRRI Can't Bias Hot Enough
- 1979 Peavey Bass 400 MarkIII
- Please Help Marshall Tsl Problem
- Hafler T2 Tube Preamp
- Fender Pro Junior: Problem or Normal? Help!
- 1973 Marshall
- Peavey Bandit Reverb Issue
- Biasing a Fender Blues Junior Question
- Peavey Classic Dual Death Cap Question
- annoying hum
- Adjusting BIAS in Sovtek Tube Midget 50H Head
- 65 Deluxe reissue pots
- Circuit Board issue!!!!!
- Mesa Triaxis Memory Loss
- TSL100 Bias Problems
- Ampeg 7027A Power Tubes Replacement Blues
- Fender stage 100 ? very weak dist sound
- twin reverb trem not working
- Trace Elliot Velocette 110
- Peavey Classic 50/212 ... Standby Issues!
- Fender opto isolator "roach" which end is which?
- Marshall JCM2000 DSL50 hum
- phase inverter in the 30th anniversary
- Tremolo all bunched up
- no sound
- B+ fuse killer
- 6FQ7 phase inverter
- Marshall JTM60 Trim Pot Location
- Ampeg VT-22 slight mishap
- Fried J & Hyde
- Power Transformer testing? (kinda long)
- Fender Dual Showman Reverb Problem
- What can cause spring reverb tank to fail?
- EL34 reliability mod
- Turntable service stand - a little off the forum
- HH VS Series schematic
- Need a 5/10/20 Cap for Silvertone
- Laney LC15 Volume Fluctuation, Suspect Pots
- Fan noise
- B-52 At100 Head Repair HELP PLease!!!!!!!
- Troubleshooting motorboating
- Strange Feedback with medium/high gain
- jc120 speaker wiring
- Peavey Classic 50 212 wierdness
- Orange Rockerverb Noise Problem
- New Guy With A Question.....
- Marshall MF350
- Old Peavey TNT 100 SS Series Has Low Distorted Output
- Excessive hum
- Sovtek MIG 50 help please
- Marshall MKII schematic
- Problem with Ampeg B1RE
- Crate Turbo Valve 60 help
- bedrock 1200 Questions
- Vox AD15VT sound problem
- 120 Hz Hum in Solid State Amp
- Bassman PI resistors
- twin amp red light
- rating power MosFets?
- BF Super Reverb Question
- EL84 Acceptible load range (Single Ended operation)
- Ampeg V4 Troubleshooting Help
- Burning smell...
- Trace Elliot C100 Speed Twin Trouble
- Mesa MK I RI Tweaking
- Peavey Classic Head
- sparked bias supply, dead.
- Sound City PA50+ low volumen...
- Magnatone 460 output impedance
- H&K Triamp MKII question
- Fender Performer Problems.
- trouble wiring up heaters
- Bassman - no headroom
- Twin-Amp biasing
- Electrical Interference or Arcing?
- Marshall Valvestate reverb problem
- Ampeg SVT6PRO question
- Bad Choke?
- Mesa Mark IV schematic help
- Marshall TSL-601 - Quiet Volume
- PI anode resistors
- peavey classic 50 410-poping,cracking
- crate vc5310 problem
- Mesa Boogie Lone Star Hum Please Help
- Transformerless Amp Safety
- Pic of turntable stand
- Vibrato LDR
- bias caps: Sprague Atom or Xicon?
- Genz Benz: red or black?
- question about bias cap values?
- Powering up with a variac
- Marshall VS65R Problem
- Peavey Classic 30/Smack it to power up
- Carvin Legacy help needed
- Old Elk Viking Amp Head Scratcher
- hiss from output/power amp
- JCM 900 problems
- Carvin PB 150 FETs
- Blowing Fuses
- Orange Rocker 30 Schematic
- Stage 112 cuts in and out
- dummy math question capacitance
- Hartke HA-3500 Troubleshooting - Bass Amp Crackles & Pops
- Marshall VS100 blowing fuses
- TNT-100 Repair Problem 2
- Ampeg GV-22 1968 vintage restoration
- Peavey PA-400 schematic
- replacing power cord strain relief
- output transformer wiring
- Plate voltage w/ tubes in
- Peavey Butcher 6l6 to El84
- Ampeg B15 oscillations at high volume
- Kustom K200B-4 hisssssssss
- Dead Marshall MG100
- Spray painted Gril Cloth
- location of 3rd wire
- Marshall MF350 Mode Four - No power up
- testing transistor temp sensitivity
- Winged C SVEL34
- Filter cap question
- Fender Deville cathode diode
- Peavey Studio Chorus 210
- marshall VS265 - high pitched noised at high volumes
- Marshall mg100dfx resistor value r8 & r20
- Peavey
- Output Transformer Question
- valvestate 8080 reverb
- Marshall JCM2000 TSL100 Noise Issue
- what is the fuse value for the mode four (mf350)
- Scorpion Lead Amp - Cap Replacement
- Rewiring US Marshall for Europe
- Fender deluxe 90 prob....any fender techs?
- Laney Pro Tube 50 (lead) schematic
- Roland Cube60
- Peavey Deuce schematic?
- Ideas on '67 Bassman problem......
- Silvertone 1466 schematic?
- quickest/easiest way to test zeners?
- Fender Bass Amp Blues
- Messy bogie DC3
- Valve Junior-intermittent cutting out
- Peavey Butcher dead
- Kalamazoo Model One failure...
- Marshall VS100 Combo Cutting out after a few minutes
- Help debugging my mesa boogie studio preamp
- dirty dusty amp chassis and circuit.
- jcm800 clone with noise
- OT transformer feeding back
- Improving Halfwave Rectifier Question
- could someone help me out?
- Chorus weirdness.....
- Valvestate 8280 shorting problems, need troubleshooting help
- Jumpy master volume
- SPDT channel switch pops
- Fender HR Deville Issue
- a bunch of hiss in preamp
- What would you do with a CBS 70w Super Reverb?
- Fender Princeton 65 DSP Problems ???
- Ampeg transistor?
- Ampeg SVT-4 schematic anyone?
- SWR Workingman's 10 and TDA7293
- SF Champ lost headroom
- low frequency buzz from speaker
- Sovtek mig 50 issues ?
- 16/32uF 475v Caps?
- standby light stays on
- Schematic for a Guild Thunderstar Bass Amp 1969... Please..
- vox super beatle schem
- Mesa Dual recto Questions
- JMP-1 Midi Trouble
- 2uf 25v Caps
- Counterfeit pwr x-istors
- JCM900 - urgent advice needed
- Noisy Traynor TR-2 reverb tank
- Ampeg b12xt
- Bad sound out of my 1964 Princeton
- Mesa Boogie reverb madness
- Classic 30 blowing fuses...
- Peavey mace no output
- Silvertone 1448 Transformer questions
- Classic 20 repair manual
- transistor matching question
- im getting shocked!!!
- Amp cabinet rattle
- Fender Deville - Same Issue, New Question
- Baldwin C1 problem...the one with the colorful push-buttons
- fizzy static through AC30 TB
- Mashall Valvestate 8080 Issues
- Schematic for a Regal R-1160 tube amp
- Replacing speaker in Rickenbacker 2x15?!
- Valvestate 8080 Low gain on Boost Channel
- peavey cs 800 wiring
- Looking for SWR Strawberry/California Blond II Schematics
- Biasing a Crate VC50
- How well do tube testers work?
- Troubleshooting an RE-201 reverb unit
- Peavey Bandit 112 low volume
- 1966 Ampeg Gemini V - low output and horrifying distorted sound
- TSL100- V6 not firing up!
- Marshall DSL 100 - Nothing!
- Hum increase with modded EV Jr.?
- marshall lead 12 3005 no crunch
- Schematic for Ampeg B2-RE
- Testing Capacitors
- Epiphone Blues Custom = Dead?
- Preamp positions for DSL and TSL
- Links to Vox schematics
- Ampeg V4BH
- Need Help! Channels Switching Automatically?
- lound crackling sound on clean channel
- fuse flows
- resistive load to tests?
- Lab Series compressor
- TSL100 Woes: PT2
- Ibanez Starfield VT-100
- Scratchy gain pot
- Volume loss in MVA 500
- Quick circuit testing question...
- Solid State amp not working-Help!
- Peavey Decade schematic
- AMPWARES - anyone know where they went
- Is this a symptom of a blown OT?
- Deluxe Reverb Microphonic?
- Noisy Ampeg SVP preamp hummmmmm~
- 5E3 tone mods
- George L Cables
- GRO100 Intermitant Fuse Blowing
- Gibson GA18T blowing fuses
- Peavey Century 120 Bass Head Help