View Full Version : The Workbench
- 50 watt 25th anniversary
- mic cord help?
- TSL100 Bias drift ...another cure
- 2061X tube replacement question
- Marshall Class 5 Amp - Transformer help.
- Tube question for Fender Super Twin.
- dropped off my 1959 for a Lar/Mar PPIMV installation
- JCM2000 DSL401 problem...can you help me please?
- My first mod, tsl602
- TSL100 Transformer Advice anyone?
- Get more scooped, etc...
- need some help with my JVM
- Attenuators
- Electro Harmonix 12ax7 vs JJ ECC83S
- JCM 800 2210-tube socket charred.
- Help - 5213 MOSFET 100 Reverb Twin, 100W 2x12" combo
- Marshall 6100LM Biasing problem...
- 4100's got an issue
- b52at-100 tubes?
- New Build - Rozsa Jose SEHO
- Cleaning Digi Pots
- JMP 1978 OT color code!
- MS-4 (MS-2) mod
- 2204 question
- Best cathode follower for a DSL 100
- JCM900: question(able?)
- DSL 401 - preamp working power amp no audio
- g30rcd
- JCM 2000 DSL no output problem
- Adding a PPIMV to a Fender Bassman '59 LTD
- Ohm selector: hardwired or not?
- JCM800 4010 - bias weirdness
- DSL 100 Grid Blockers 220K?
- New tube day:tsl 601
- Preamp Groove Tubes
- What kinds of tubes are these?
- Setting the Bias
- No/low sound from 2203x
- 8100 Valvestate 100V Boost Channel Low volume
- FX Loop Question
- TSL601 combo - replacement feet?
- Bad 60 cycle hum
- EL34 Screen Resistor Question?
- New 1987xl
- '88 2205 Channel Switching Pop Noise
- Which Has Better Tone:Valve Art or Gold Lion KT66
- Tech says I should take out my 6550's?
- AVT 150H Not as loud as it used to be?
- Metro zero loss FX loop in a JCM800
- 6100 hums on standby, is it an issue?
- EL34 with Dimple On Top of Glass?
- JTM 60 bias adjustment
- Hooked up amp wrong I don't know if I damaged
- question for 900dr owners
- Recommended preamp tubes for Fender Red Knob Twin (Hi Gain Combo)
- DSL100 sounds like a Theremin! [with video]
- Valvestate 8280U Pitter-Patter and Distortion
- Static From My JCM 900
- 2210 Reverb issue.
- need source for vintage Marshall style cts pot
- Help me identify Marshall 6100 ECC83 tube. (+my opionion about ruby-sovtek-jj)
- JCM800 2210 back to stock help
- JCM2000 DSL 50 Fuses
- Tsl 100 Head hum
- Jalco FX Loop Jacks for DSL 50
- 800 losing volume with treble increase. HELP!
- Resistor Supplier for JMP 2203
- RMS Voltage Or Average Readout Multi-Meters?
- JTM45 mk2 Hum
- Retubing a Marshall JCM 900. Recommendations needed.
- MS-2 question
- AFD100 V1-V4 Leds all lit/powerscale not working - calling Santiago!
- JMP 50 hum problem on the High input
- Bizarre occurrence on JMP800 2204
- Preamp tubes in the dual mono block series
- JMP Voltage chart Needed
- JCM 800 plate voltage/biasing question
- Guitar straight into my 4-track w / clipping sounds great how can i recreate it live?
- Volume control in effects loop
- 900 SLX, Half power switch disabled???
- Bright Open Sounding-gainy 12ax7
- Help modding a JMP Combo
- Potentiometer Thread Sizes?
- Loud Popping Channel Switching. Techs! Help!
- TSL 60 volume
- Marshall Mode Four issue
- Jvm 210-h od orange cutting out???
- 1987 Clone running 702 VDC on B+, is this a problem?
- Groove Tubes EL34M
- Great deal on a solder station
- Problem biasing tsl100
- JMP 2203 crackling and volume issues
- 83 jcm 800 2210
- If you haven't friended MartyStrat54 yer so not right in the
- To fix or not fix the effects loop?
- TSL 60 help
- One tube w/ No Bias Reading
- JTM45 RI Marshall Installed Wrong Circuit Board?
- JCM800 2203x need tech to restore
- MOSFET Lead 100 Questions
- dumb question of the day
- Newbie needs help with 1968 built Marshall 50w clone
- jmp
- Reverb Loop Mod?
- 6100 plate voltages question
- TSL 100 problem
- JCM 2000 series TSL602
- JPM 9004 trouble
- JCM 800 2204: Treble Peaking Circuit
- Valve Jr Bass Conversion Coupling Cap Values
- Problem with bias circuit?
- DSL 50 Volume Drop with FX Loop
- Black epoxy resin in my JCM 900-SLX
- JCM 2000 DSL...pop and hiss with no sound, Help!
- AVT150 vs AVT275: digital FX board
- Bogner Brixton tone control question...
- Metro Amp 1959 Build
- Blown fuse, should I be concerned?
- AVT275 Dirty Channels Not Working
- Common question from a noob...
- Marshall JMP big hum no sound!
- JCM2000 DSL 50 Strange Noise
- JCM 900 MK3 2500: Powering Off Sound??
- JCM 800 2204 Finally Fixed!
- brimar tube.
- JCM 900 - Footswitch problem
- Question about tubes
- Micro phonic Class 5
- tubes or caps first???
- What does 50+50µF mean?
- Source For New Mercury MAR100-C Chokes?
- JTM-30 New Sound
- Marshall Plexi Terminator/Doug Aldrich mod
- NFB Loop Increase Causing Whistling On Master Volume?
- EL84 20/20 issues.
- Geiger counter crackling in DSL-15H
- Anybody build a Valvecaster pedal?
- ma100h preamp tube sockets
- 65 watt 2275 musicman
- Squeal and crackling sound in Volume 1 Pot of Marshall 1959 HW
- vm 2466
- Marshall AVT 150 Combo
- Did ya miss me??? Having issues with my 1980 JCM 800
- Hendrix Plexi.>>Need help. Noise on Ch.1 Only!
- Marshal TSL 60 channel switching from CRUNCH/OD1 to LEAD/OD2 problem
- Odd FX loop phenomenon
- Current mirror
- wiring, please help
- Low pass filter help
- Replacement Transformer for AVT50H?
- capehart 12ax7
- 2003 dsl 50 no green channel or reverb after mods?
- "Dust" inside power tubes...normal or near death?
- Pasting aluminium foil on top of Fender Combo
- JVM 410 H problem
- Help with preamp question
- Class 5 Amp Transformer, NEED HELP!!
- Schematics For DSL15H & DSL15C?
- Jmp combo repair help
- Please Confirm Tap Wire Re-Positions
- Jube vs Plexi Build....OK, I'm addicted!
- High Pitch oscillating squeal is almost controlled
- 6550s in a 4210
- CAT-5 as pedalboard cable?
- Is this a Master Volume Mod?
- TSL60 Preamp Tube and General Tone Advice.
- Regarding Caps
- JCM 900 cooked
- Curious DSL 50 channel switching issue
- Looking for specifications on a lead 100 2098 (1976?)
- Rolling Preamp Valves
- re: Vintage Parts
- MF350 power IC question
- JCM 800 2210 question.
- Valves and Capacitors
- Help a noobie fix an input jack without killing himself
- Water Drops sound on Background of CH2
- JCM 800 effects loop
- Early 80s Knobs
- Marshall JCM 800 Mini
- DIY 1959slp build, weird buzzing.
- JCM2000 DSL 50 - No Sound
- Marshall TSL122 Mainboard Replacement
- MG30CFX footswitch saga...
- 5275 burnout ? - repairable ?!
- Curiosity totally overwhelmed me so I finally rewired my JCM900 DR preamp
- JCM2000 DSL problems
- DIY Kit Amps?
- Haze 40 Lead channel not working
- Replacing 22uf 500v filter caps with 22uf 450v filter caps
- My JCM800 KK just tanked
- DSL 40C died Today
- JCM2000 DSL100 "required" mods?
- 1 different valve in matched quad
- Noise 1959 SLP
- DSL-50 Effects Loop noise/hum?
- ok techs need some help
- Reverb tank swap
- Interesting 12AX7 Comparison - CP's
- JVM 410H help and advice needed.
- Complicated question about diodes (and more)
- ASSorted Traynor YGL-3A Ramblin' Ons . . . .
- low freq white noise from clean channel
- Eurotube info, anybody try these.
- 6L6GC/EL34 for my 900
- my VS265 is sick
- Anyone in Austin that can fix my JCM 600?
- 6L6GC bias point?
- footswitch repair
- DSL 50 Help
- Marshall lead 30 5010 speaker replacement Please help
- JCM 800 2204 Help
- How important and easy is the DSL ground mod?
- What tubes are these please???
- What tubes best for Marshall SL2555 Jubilee
- Bad Filter Cap?
- 2204 Build
- Biasing a 100 watt Superlead
- Convert KK2203 to 110/ 120V
- dr.z and Bruce egnater modded jcm 800?
- Little rocker rocking too hard.. bye-bye practice amp?
- wierd noise while baising..
- JCM 2205 repair
- c12 Mod - Finally caved in
- Eurotubes site says 35watt dissipation for KT-88 not 25watts. What gives?
- Fixing gibson nitro finish :-(
- Does this look right? JCM 800kk board?
- :( Sad state Valvestate
- how do i get my plate voltage
- how do i get my plate voltage
- Pleaseeeee Help!!!!!!!
- JCM 800 #34 + #36 mod by BRBS amp AFD
- PA to SL/SB amp convertion
- 6V6 In Place Of 6L6/5881?
- MA50C high bias point! (+20VDC)
- Fried Transformer? JCM900
- Marshall DSL 50 still passing signal with the volumes on 0?
- Staining a cab?
- '69 Super lead PLEXI choke C1999 repair?
- New Tube Problem - What Should I Do?
- jmp-1 rack preamp footswitch question
- JVM210H re-tube opinions
- DSL FX Loop bleed/phasing with M13?? Help!!
- Plate Voltage on 2203x
- Dagnall OT replacement
- Old Analogue Multimeter for Biasing??
- Different Type of PPIMV Circuits?
- Diagnosis help please.
- valve seats??
- 6100 LM cap question
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