- What kills power transformers?
- Marshall JCM 2000 TSL
- Princeton Chorus hum
- Dead JCM900
- hafler t2 preamp
- Tsl 100 bias wacky
- Software For Drawing Schematics
- Bad Output Transformer
- Old Symphonic Record Player
- Understanding the heating of a 12AX7
- "Sizzle" sound in my SE homebrew
- No schematics for a while
- Headphones with tube amp?
- Musicman bias issue, i think.
- Continuous problems with Fender Tone Stack
- Line out distortion
- Fender Stage 100? Need Help Quick...
- Precision bass pickup
- Volume loss in a marshall jcm tsl 60 watt
- Merry Christmas Everyone !
- Look what Santa brought
- marshall jcm-800 50w troubleshooting help!!
- Bleeder Resistors
- Is this .mp3 file the sound of motorboating?
- Help me care for of my 72 Fender Twin Reverb
- Screen current
- JCM 800 2205 Split Reverb problem
- 700 RB Gallien-Krueger
- Kustom 200
- Bogen K15 Buzz/Hum
- Red Glowing tubes, Fender Twin Reverb
- Schem for red knob Princeton Chorus (SS)
- 6L6 with a hole in it....picture enclosed
- Newbie - Need Help with Tube Amp
- Advice on Rust removal....faceplate
- Traynor YCV40WR - Master Volume ?
- Mesa Switching
- I need help with my Epipiphone Studio 105 amp!
- JCM900 fuse keeps blowing (newbie)
- SVT Bias changes with signal/redplating
- removing the board in a hot rod.
- Fender roc pro 1000
- Put power tubes in the wrong way!!!Help!
- Help, please. Orange Tiny Terror problem.
- Marshall 9200 adjustments
- Amp cutting out?
- humming line-out
- Where to get tape?
- HNY! and a 70's Princeton question.
- Sovtek 5AR4 went bad, what replacements?
- FENDER TWIN - IT's GONE REALLY TWANGY/TREBLEY!!!
- Need Mesa Boogie 50/50 user Help!
- Marshall Valvestate 8080 intermittent volume dips
- impedance switch rating?
- Still in need of cooler 6L6's....advice please
- bass amp compressor distorts
- 70MFD 350V Cap Replacement
- Marshall 100w JMP (2203) - output switch
- Cap identification....please
- Humming SVT
- new power supply caps, now motorboats
- Reverb or efx loop effects sound bad on Engl lead channel
- Still looking for Champ 25 PT.
- Dead Peavey Classic 30
- Bias setting Ampeg V4BH
- Marshall 1987X U spec. USA
- Help for amp section noise
- bad transformer?
- Identification help - please
- different voltage measurements across EL34's
- Sovtek MIG-50 help
- Need help with Gibson GA-5T
- Adjusting Screen Grid resistors
- JCM 900 Problems
- Champ Wiring Help
- best hammond OT for HRDL?
- Peavey Classic 50 2x12 acting wierd
- Your take on the death cap issue
- Gibson Falcon bias.
- Fender Frontman 15R blown output
- High B+
- H&K Triamp MK1 Reverb
- Free pro audio schematics
- No voltages - p transformer?
- bias with no CT ?
- Converting EL34 to 6L6/6V6
- Madison Divinity
- Humming Plexi
- Fender Ultimate Chorus with broken chorus
- need help.fender Super Reverb noise
- 5Y3 & similar tube substitution
- Vox Ad120vtx
- gallien krueger 200mv. Echo issue
- fender twin tone problems
- trouble installing Silvertone 1483 preamp
- Kustom K100 2 Schematic
- Bias meters
- Champion 600 Problem
- Blue Lights Plexi
- Musicman 115 tune up?
- Troubleshooting Silvertone 1484 (Twin Twelve) - weak ouput
- Need schematic for a Yamaha P2050 power amp
- Slight oscilation??
- Fender Roc-Pro pops when power is switch off.
- Victoria 5E7 Hiss Question
- power supply sag
- Replaced JCM800 lighted power rocker switch
- Blown speaker
- need help with noisy amp
- No input sound to speaker on Fender Prosonic
- Troubleshooting help needed-VHT amp
- Guyatone amp issues
- power supply failure?
- Help!! TSL 100 Head - no reverb or presence!
- what is the correct amp fuse for marshall valvestate 8200 bi chorus?
- Problem with a Pro Jr. NASTY Distortion!
- magnatone chirping with vibrato in use
- input/output help?
- Intermittant HT fuse blowing
- who uses what to vacuum a dusty chassis?
- Marshall DSL 100 fuse holder
- kustom k 50
- HELP!! Tubes 1-5 wont heat up.
- yamaha emx 660 powered mixer help
- Brand New Crate V18 Tube - Loud Hum When Plugged In, No Guitar Sound!
- Marshall JCM 900 issues
- JCM2000 TSL100 Head-aches
- Cleaning Transformers?
- Need Help with Roland Jazz Chorus
- WILD Marshall problem
- JCM900 circuit differences ?
- Volume Control problems
- Peavey problem
- Roland Space Echo RE 201 NO DELAY
- Boogie parts?
- fender red knob twin
- Vox AC30 CC1 Reverb
- Buying a variac: advice needed
- Marshall JMC900 100 watt
- Crossover cutting out in Crate PS 118 subwoofer
- Merrell MA-12
- Antique Electronics Marshall OT
- Fender Custom Vibrolux Reverb - Vibrato dead...
- Bias question
- Transformer recommendations
- Question About Proper Use of Variac
- carvin r600 mosfets
- Twin Amp current
- red knob the twin clean channel....
- Ampeg G2-12 Test points & troubleshooting help
- newbie stereo/mono question
- Peavey Unity series 1002 mixer take apart..
- Marshall 1987x issues....
- Help with Spectrum ll
- GK 200M trouble...trouble.
- XR600B IC4741cp
- Dead in the water Princeton Reverb Amp
- Questions about old Univox amp
- Ampeg Jet LDR Replacement
- Sunn Beta Lead Restoration
- eico 666 tube tester
- Hammond OTs as replacement
- Fixed Bias?
- Fender Hot Rod DeVille 410 sharp noises with high volume levels
- Ampeg SR-212rt Issues
- DC Indicator lamp?
- Fender Transformer info
- Output Transformer recommendations
- Peavey Ultra Plus - pull tubes?...
- fender blues junior help
- SUNN Concert Bass
- Replacing Molded Paper Capacitors
- Tube amp Question
- Help Fix Marshall Valvestate 10 Volume
- Marshall 2205 JMC800 Reverb does not work
- Peavey PV2600 Power Amp
- Hartke HA4000
- Fender Champ 5C1
- A few questions about a Fender Twin II
- PV CS1000X schematic and layout
- Thanking you kindly
- mesa boogie 20/20 schem
- Output transformer for a Magnatone 108
- Fender M-80 Chorus Troubleshooting
- Gibson Falcon output transformer
- Carl Zwengel, where are you?
- solid state amps howling
- Behringer k3000fx amp
- How to take apart a Micro Cube?
- Pace MBT-100 heater
- Oops!Shorted something!
- Hummmm help
- Biasing Peavey JSX
- trying to understand power transformers
- Marshall JCM 900 making a crackling noise
- Fender Stage 160 amp problem
- Marshall Valvestate VST50 Transformer
- trouble sourcing restistor
- Humming Vox AC30 reissue that dies down when 'normal' vol is at 1'o clock
- Valvestate 8080 Troubles
- jcm 800 wierdness
- What do you do when a customer brings you an amp with an intermittant problem...
- Please help!!!
- SWR combo
- .33 Ohm emitter resistor instead of a .22 OK?
- Marshall 2959?
- Fender Super 6 Reverb squeal
- question on a Framus Dragon Amp 100watt
- Marshall JCM900 4100
- Does Marshal PED081 work with Roland JC-120
- Marshall 1959HW has low volume
- marrshall valvestate 8200 bi chours
- Dropping B+ before filter caps
- 1973 Fender Princeton Reverb Vibrato Noise
- low gain on ef86 gain stage problem
- line6 pro duo hummmmming.
- Help with Peavey XR600B
- Ampeg Reverbrocket blowing fuse
- never mind
- Ashdown Peacemaker 60 Head
- randall 1992 12" guitar amp noise cutting off
- Need help with a speaker problem.
- dimbulb tester is glowing bright
- "Dual Professional" Fender 2 Button LED Footswitch - Why not?
- TNT-100 Repair Problem 2
- Marshall JTM30 mystery
- peavey classic 60 trouble
- Which Driver
- baddog
- 6AQ5 substitutions
- Deluxe Reverb RI Bias Puzzle
- can you overly capacitate power supply?
- Marshall TSL100 Head Problem
- Hissing problems Sovtek mig 50
- Looking for amp rebuild advice please
- Adjustable Bias on Rivera Chubster/Clubster
- Gibson Super Goldtone 30RV blowing fuses...
- ampeg v-5 not loud at all
- Problem w/Vox Valvetronix AD15VT
- amp making a crackiling at high volume
- -340Vdc bias from secondary taps (LONG)
- Marshall MG100DFX problem...?
- my volume knob is haunted
- Marshall Valvestate 8020 - Hums and Crackles
- is this a bad PT??
- Volume Fluctuation in Marshall JCM 2555
- silly grounding question
- DSL 100 noise
- DSL 401 no sound/weber mini mass
- Roland Space Echo RE 201 Scematics