- Chorus weirdness.....
- could someone help me out?
- Improving Halfwave Rectifier Question
- OT transformer feeding back
- jcm800 clone with noise
- dirty dusty amp chassis and circuit.
- Help debugging my mesa boogie studio preamp
- Marshall VS100 Combo Cutting out after a few minutes
- Kalamazoo Model One failure...
- Peavey Butcher dead
- Valve Junior-intermittent cutting out
- Messy bogie DC3
- Fender Bass Amp Blues
- quickest/easiest way to test zeners?
- Silvertone 1466 schematic?
- Ideas on '67 Bassman problem......
- Peavey Deuce schematic?
- Roland Cube60
- Laney Pro Tube 50 (lead) schematic
- Fender deluxe 90 prob....any fender techs?
- Rewiring US Marshall for Europe
- Scorpion Lead Amp - Cap Replacement
- what is the fuse value for the mode four (mf350)
- Marshall JCM2000 TSL100 Noise Issue
- valvestate 8080 reverb
- Output Transformer Question
- Peavey
- Marshall mg100dfx resistor value r8 & r20
- marshall VS265 - high pitched noised at high volumes
- Peavey Studio Chorus 210
- Fender Deville cathode diode
- Filter cap question
- Winged C SVEL34
- testing transistor temp sensitivity
- Marshall MF350 Mode Four - No power up
- location of 3rd wire
- Spray painted Gril Cloth
- Dead Marshall MG100
- Kustom K200B-4 hisssssssss
- Ampeg B15 oscillations at high volume
- Peavey Butcher 6l6 to El84
- Plate voltage w/ tubes in
- output transformer wiring
- replacing power cord strain relief
- Peavey PA-400 schematic
- Ampeg GV-22 1968 vintage restoration
- TNT-100 Repair Problem 2
- Marshall VS100 blowing fuses
- Hartke HA-3500 Troubleshooting - Bass Amp Crackles & Pops
- dummy math question capacitance
- Stage 112 cuts in and out
- Orange Rocker 30 Schematic
- Blowing Fuses
- Carvin PB 150 FETs
- JCM 900 problems
- hiss from output/power amp
- Old Elk Viking Amp Head Scratcher
- Carvin Legacy help needed
- Peavey Classic 30/Smack it to power up
- Marshall VS65R Problem
- Powering up with a variac
- question about bias cap values?
- Genz Benz: red or black?
- bias caps: Sprague Atom or Xicon?
- Vibrato LDR
- Pic of turntable stand
- Transformerless Amp Safety
- Mesa Boogie Lone Star Hum Please Help
- crate vc5310 problem
- peavey classic 50 410-poping,cracking
- PI anode resistors
- Marshall TSL-601 - Quiet Volume
- Mesa Mark IV schematic help
- Bad Choke?
- Ampeg SVT6PRO question
- Marshall Valvestate reverb problem
- Electrical Interference or Arcing?
- Twin-Amp biasing
- Bassman - no headroom
- trouble wiring up heaters
- Fender Performer Problems.
- H&K Triamp MKII question
- Magnatone 460 output impedance
- Sound City PA50+ low volumen...
- sparked bias supply, dead.
- Peavey Classic Head
- Mesa MK I RI Tweaking
- Trace Elliot C100 Speed Twin Trouble
- Burning smell...
- Ampeg V4 Troubleshooting Help
- EL84 Acceptible load range (Single Ended operation)
- BF Super Reverb Question
- rating power MosFets?
- twin amp red light
- Bassman PI resistors
- 120 Hz Hum in Solid State Amp
- Vox AD15VT sound problem
- bedrock 1200 Questions
- Crate Turbo Valve 60 help
- Problem with Ampeg B1RE
- Marshall MKII schematic
- Sovtek MIG 50 help please
- Excessive hum
- Old Peavey TNT 100 SS Series Has Low Distorted Output
- Marshall MF350
- New Guy With A Question.....
- Orange Rockerverb Noise Problem
- Peavey Classic 50 212 wierdness
- jc120 speaker wiring
- Strange Feedback with medium/high gain
- Troubleshooting motorboating
- B-52 At100 Head Repair HELP PLease!!!!!!!
- Fan noise
- Laney LC15 Volume Fluctuation, Suspect Pots
- Need a 5/10/20 Cap for Silvertone
- HH VS Series schematic
- Turntable service stand - a little off the forum
- EL34 reliability mod
- What can cause spring reverb tank to fail?
- Fender Dual Showman Reverb Problem
- Power Transformer testing? (kinda long)
- Fried J & Hyde
- Ampeg VT-22 slight mishap
- Marshall JTM60 Trim Pot Location
- 6FQ7 phase inverter
- B+ fuse killer
- no sound
- Tremolo all bunched up
- phase inverter in the 30th anniversary
- Marshall JCM2000 DSL50 hum
- Fender opto isolator "roach" which end is which?
- Peavey Classic 50/212 ... Standby Issues!
- Trace Elliot Velocette 110
- twin reverb trem not working
- Fender stage 100 ? very weak dist sound
- Ampeg 7027A Power Tubes Replacement Blues
- TSL100 Bias Problems
- Mesa Triaxis Memory Loss
- Circuit Board issue!!!!!
- 65 Deluxe reissue pots
- Adjusting BIAS in Sovtek Tube Midget 50H Head
- annoying hum
- Peavey Classic Dual Death Cap Question
- Biasing a Fender Blues Junior Question
- Peavey Bandit Reverb Issue
- 1973 Marshall
- Fender Pro Junior: Problem or Normal? Help!
- Hafler T2 Tube Preamp
- Please Help Marshall Tsl Problem
- 1979 Peavey Bass 400 MarkIII
- Fender SRRI Can't Bias Hot Enough
- Marshall JTM60 Output mystery??
- Fender "The Twin" Schematic
- Hartke 5000 help ?
- Combo or Head/Cab?
- Panel meter wiring
- Buzzing Blues Junior
- Marshall valvestate 8080 how to get more reverb
- Peavey Classic 30
- Vibrolux Reverb Bias?
- SFDR w/ MV has very low output volume...Any ideas?
- weird thing happens on opamp
- Marshall Valvestate vs100 Problem
- Silvertone 1474 questions
- What size fuse to put in O.T. center-tap?
- Ampeg B2 RE
- Setting the Mosfet bias on an Ampeg SVT 3 PRO
- Biasing with a "BiasProbe" basic
- Avt275 powers up but no sound
- Speaker loads
- Motorboating vibrato circuit
- Help! My amp sounds like a ring-modulator.
- Mesa Nomad 45 unbearable hum
- Shorted output leads
- Ampeg reverb squealing
- Microphonic Capacitors??
- SVT Classic Fan Question.
- Ampeg J12-B Tremelo Whoosh
- Peavey 6505 bias mod
- fender stage 112
- While I am at it, I might at well..........
- 69 Bandmaster reverb -oh the crackling noise!
- Marshall AVT 100 Problems
- Tsl 100 help
- checking for a bad diode
- No sound immediately when switched to standby
- Hammond M2 Repair & Restoration--help!
- calculating output power
- Repairing a Bl@nkenshib
- Too much B+ for the poor tubes.
- carvin XV-112E problems
- Marshall 50 Master volume with tropical fish cap?
- waveforms
- Weird reverb problems in tank? I'm baffled
- How much power amp affects tone
- SWR PB-200, What gives? Help!
- What's the vox pathfinder ic?
- Marshall parts
- Marshall TSL122 grid resistor values?
- Very low B+ in BF Vibrolux reverb
- Peavey Mace Problem
- 1974 Quad Reverb Trouble
- Marshall AVT50 - burned R58
- VOX AD60VT Question
- Need help with my LANEY
- Volume on zero, still sound?
- 5E3 weird distortion problem
- Laney rbg500 blow out
- SVT-4 Pro output relay
- Need achematic for Crate BV120H
- Blown OT??
- Traynor Monoblock schematic
- deluxe reverb broken
- Sunn 200S drawing too much current at idle
- blackheart strange volume control
- Old Peavey bass amp
- Yorkville Traynor Guitar Mate YGM-1
- Marshall DSL100 bias creep
- Ampeg J-12B
- 61 Ampeg Badge
- Source for d shaft pots ?
- Silverface Twin Reverb Blackfaced with Scratchy Buzz
- Schematics, Adobe, and you
- Marshall MG100HDFX - TD7293
- Marshall DSL401 Enzo???
- Jazzmaster schem?
- Fender Noise !
- Loud Sqeeel When Turning Amp Off
- Marshall AVT100 combo buzz/humm
- gas discharge tube= surge protect?
- Relay trouble
- Help Removing Bassmaster (YBA-1) Chassis
- ab165 mods and rebuild has low power and distortion
- VTM 60 Burnt 400 ohm/10Watt Resistor, oh my
- Loud screech when volume is turned all the way down.
- A different Kind of Power Tube Arcing
- Blowing Filaments?
- Power Tube Arcing
- '59 Bassman reissue question....
- Peavey Delta Blues buzzing
- HA3500 blowin' ye ol' fuse
- Acoustic 160 reverb hum
- Clicking Ampeg
- maine amp cct
- Marshall DSL401 - Fading Out
- Silvertone 1484 Layout
- Problem with my head
- Gibson Falcon access
- pot trouble
- Reverb trouble