- Another MARSHALL Valvestate 2000 AVT150 Blowing fuses......
- Is this scope worth a nickel?
- Mesa 50 cal fried resistors continued
- Marshall VS 8080 IC1 Blowing.
- Quality workmanship.....
- What was the hardest problem you ever found and fixed?
- Deluxe Reverb schematic discrepancies?
- Fender Chamion DSP 30 Channel 2 has no volume control
- Best Way To Clean Off Green Powder Dust Off Old Chassis?
- 969 Ampeg SVT being snappy
- Vintage PA Tube Head Output Question
- Marshall 2100 JCM 900 Head Hum
- Question about 50s Fender OT ID
- JCM 800 2204 Self oscillation problem
- Bleed Resistor to Discharge High Voltage Caps in Tube Amp
- Crate v18 212 amp wont turn on anymore???
- Marshall 8008 Rack mount Blowing transistors
- Hughes and Kettner Switch Blade 100 guitar head
- 4.6V heater voltage on Fender Pro Tube Twin
- blues deluxe 1993 not the reissue
- Laney L30B Hums, Blows Fuses
- Buzzing first minute or so, Laney VH100R
- Sunn Beta Lead - Random but relatively constant crackle on output
- Marshall 2100 JCM 900 head oscillating
- No volume with Peavey XXL with effects loop in use.
- HELP With VOX AC100CPH
- Hughes and Kettner Switch Blade 100 guitar head
- Fender Hot Rod Deluxe 3
- Hum/Buzz When Power Transformer is Grounded to Chassis
- 100uf + 100uf caps bigger than 35mm
- Anyone Up For A Vintage Tube Swap?
- Fuse differences
- Fender Hot Rod Deluxe - weird noise on Drive channel
- Roland - JC77 potentiometer replacement
- SF Twin Reverb with buzzy reverb
- Crate VC6210 popped NTC before fuse, need advice..
- TSL-60 with vexing farting problem on all channels
- Mesa .50 Caliber + Fried resistors
- Cornford Hurriance blown tx again
- Fender Deluxe 5C3 question
- Need help finding pots for Hartke repair
- samson s6 distorted output
- I Thought It Was a Ground Loop
- Ampeg B-200R Dc on output
- bad tube with bizarre symptom
- PEAVEY XXL head won't switch channels
- Peavey 212 clean channel won't work
- Plush P1000s on the bench
- Strong oscillation in Reverberocket Echo circuit
- Fender 6G6-B Bassman hum
- Fender Performer 1000 popping on turn-off
- Replacement potentiometer for Fender Red Knob Twin
- Just shooting the breeze Carvin 400FET
- Carlsbro Powerine 800 voltages
- Crate Blue Voodoo
- SF Twin Reverb Vibrato Hum on Speed Pot??
- PV XR600 400R links?
- Traynor YCV40 Blown DC Filament Circuit
- Circuit diagram for Roland KC-500?
- Crate GXT-100W circuit diagram?
- Fender Hot Rod Deluxe Issue
- SWR LA-15 Stumped
- Fender Rumble 100 Bass Amp Problems- Help, Please.
- 1974 Garnet stencil 10-PT - AC isolation mod
- Cornford hurricane schematic
- Ampeg Gemini II 7591 bias questions
- Ampeg Gemini II Tone stack question
- HK switchblade 50W combo repair
- What is wrong with NTE transistors?
- Ampeg SVT-300 bias
- Amp Static Crackling noises SOUND CLIP ATTACHED
- Tweed Bassman clone with harsh breakup
- Marshall tsl 100 head loud Clean Channel Hum after it heats up after few minutes on
- No volume with Crate GLX1200H
- musicman mystery tap
- channel switching help (problem with amp)
- preamp valve weirdness
- Mesa F100 blowing single tube, in same socket, every time
- Twin reverb boost oscillation
- hartke ha7000
- Bugera 333xl-212 cap problem
- Could this cause my issue?
- Marshall Connector Identification
- 6V6 amp cutting out when guitars strings are picked hard
- Hafler G300 clipping on negative portion of waveform
- 80's Yamaha G-100
- SVT3Pro power amp failure
- Blackstar series one 50 help
- bias issue
- Blues Jr oscillation-
- Rattling on Fender Red Knob Twin! What could be the cause?
- Single Ended Odd Distortion - To NFB or not to NFB?
- Fender Champion 30
- Ampeg B15 woes.... no sound from guitar
- Fender Roc 1000 changing channels when played.
- Marshall JCM 2000 trans wires
- Marshall DSL short ???
- Need 3 Prong Power Conversion - But Heater On Primary Side of Iso Trans
- Krankenstein Jr PT replacement?
- Marshall VS100 clean problem
- Need Bias Help VC50H by SLM Crate
- GK 400rb III, heatsink isolated screw
- B-15N Power transformer replacement
- Current problem with a 6534+
- Looking for info on Ampeg B4
- Dealing with High B+
- Marhsall 100watt 1959 SLP Oscillation?
- SVT CL repair - process and safety
- Prosonic drive channel week and nasty problem
- Fender Super Champ XD no sound
- Marshall DSL HELP !
- What is your favorite flush cutter?
- Mesa Blue Angel burned board
- ** The Marshall TSL122 JCM2000 Repair/Mods Page **
- Help With Squeal/Crosstalk...
- HUM Marshall JMP 50w
- hooking up a 3 wire power cabl
- Soldano Cuts out
- Peavey Valveking died
- 73 Fender Silverface Twin Reverb Noise New Findings & Questions
- Fender 1961 Concert Brown face 6g12a re-cap time, need input
- Twin Reverb PT Surface Temperature
- Weird residual voltage problem...
- 5e3 build buzzing/overtone noise
- Ashdown EVO 500 III Hum
- fender prosonic output transformer
- AC30 Normal channel ground loop fix
- Channel bleed JCM 800 2205
- Fender reverb driver transformer - green wire grounded?
- 60's VOX Berkely II - where is the reverb tank?
- 333xl infinium problem
- Transformer specs
- Could someone open their Boogie Mark III for me?
- Line 6 Spider II - noise and channel switching issue
- Peavey Penta Series 140 Watt Head - Need Schematic
- peavey 300ch
- 5150 II to orgininal 5150 spec mistake
- hum problem in new homebrew build
- Marshal TSL 60 channel switching from CRUNCH/OD1 to LEAD/OD2 problem
- problem with roland cube 20x
- How much hum is acceptable in a Fender Red Knob Twin
- behringer Xentyx 1222 fx psu help
- Kustom Lead iii sc ombo - reverb issue - need schematic
- MB Subway Rocket Overall Volume Seems Low for 20w
- Engl Powerball interesting problem.
- What is cr-3 in FENDER DEVILLE
- Random Noise generated in power output stage of Fender Super 112...new guy here
- High pitched whistle continues on Fender Red Knob Twin, I am getting desperate
- What Brand or Type of valve would you use for a Bass
- Acoustic schematic
- Kustom 150 run hot?
- 73 Fender Silverface Twin Reverb Schematic / Layout question ?
- Behringer Truth B2030A ICs
- Peavey Mace VT red plating and arching...ouch!
- Marshall 75 Nasty Problem
- who has the best prices on ends?
- Genz-Benz El Diablo 100
- Peavey VTM 60 Question
- Peavey Mace VT Power Tubes?
- Marshal TSL 60 channel switching from OD1 to OD2 problem
- yet another VS265 with troubles
- 5150 - No Sound. HELP!!!
- Frontman 212r (yes another one)
- Help needed for new ideas to solve Ampeg BA115 intermittent crackle issue
- Ampeg SVT CL
- 6G2 Princeton - Weird Oscillation Only When Trem is Off?
- Silverface Reverb Bias Issue
- Gallien Kreuger 1001RB mk II turn on thump
- Very loud intermittent amp problem.
- NFB wire diameter/gauge
- When OT Diagnostics Don't Help
- Is this risky?
- VOX AC30 - Bad distortion
- Reverb pop when the amp is on, and long starting vibrato
- Peavey Delta Blues issue...won't work
- MarshallJCM800 2210 hum
- mesa boogie f-100, loss of reverb
- Bad Reverb Transformer?
- Magnatone 213 bias question
- Laney LC50 MK2 Low Normal channel
- Boss CE-3 LED enigma
- 73 Fender Silverface Twin Reverb Voltages ,and Noise
- Bypassing Peavey Tubefex DSP / turning it analogue
- Peavey Mace channel switching problem ?
- Behringer MDX 212
- sunn beta lead, choked, low, farty output
- Mackie Snap crackle and pop
- 6U10 hummm
- Roland JC-120 circuit help
- Laney LC50 MK2 Schematic reqd
- Fender 80s "II" series amps vactrol ratings?
- SWR 350 Bass Howling
- Line 6 spider 212
- HH Bass Machine
- Mesa Boogie Road King - strange distortion in outpout stage
- Speaker-related dumb question: speaker SIZE
- Speaker Protection help
- Univox Bias questions HIGH VOLTAGE!!!
- Midi Problem: Loose all programs when turning off amp
- AC filaments too hot!
- Princeton Problem
- Marshall DSL 50 still passing signal with the volumes on 0?
- Trace Elliot AH300 GP12 series6
- Vox AGA-70 DI mod request schems needed.
- Mesa Boogie Lone Star Special
- Trace Elliot AH300 outputs
- Marshall TSL100 Problems
- Marshall TSL100 Problems
- Mesa Boogie Mark IV one 6L6 red plating and loud hum.
- Secondary PT voltages for 5150?
- Help with early 50s Danalectro Challenger
- Bias set point for 8417s
- Running iPod into 6AU6 input...
- Hot looking anode/plate resistors.
- 1961 Ampeg Reverbrocket (May 1961)
- Very Strange Problem Fender Princeton 112 Plus
- B52 At-212 with intermittent problem
- Musicman RD 50 schematic question
- Roland re201 echo
- Voltage modification for fender superchamp xd 110v to 220v
- Needle Nose Pliers??
- Vibrolux reverb custom issue
- Fender Champ 12 red-knob channel switching problem
- Where Can I Find Capacitors??
- Traynor YGM4 hum. Need some expert advice/input
- JCM900 2100 Power Tube Bias question
- Peavey Classic VTX 2 12 Questions
- '74 Mk II Super Bass: grid resistors
- very loud popping-Roland Bolt 60
- DR AB763
- GK MB150 resurrection?
- Kustom Quad 200 HD
- Traynor Reverb Mate 40 strange breakup
- 1997 SWR california blonde I REALLY odd problem.. HELP
- Anyone know the average mV output of a guitar pickup (single coil)
- A quick one:use MKT GPF or something else?
- Peavey Musician 400 Distortion and Fuzz sound faint.
- Channel Switching problem on Carvin Belair amp
- Behringer BX300T dead amp
- Need help identifying tube/socket wiring in a homebrew amp.
- Amp blowing fuses
- Fender Red Knob Twin 2nd channel high pitch squeal/ whistle another cause?
- Trace Elliot AH-300 'increase input' green LED
- help need on bx1200
- Peavey Valveking troubles
- Fender 6G6-B Bass Input Side - Little to no Bass Response from Bass Pot
- Marshall DSL50 No Output - how big a voltage swing should I see at output tube grids?
- Anyone interested in a Mesa Boogie 50 Cal + head ?
- Help with a LAB SERIES L5 (2x12 100W SS amp)
- Peavey Triumph 60