View Full Version : Amp Technical Info
- JCM 800 Issue (2204)
- If your starting to doubt your AC15? (Mod Content)
- Help troubleshoot my McIntosh MC 240
- AC30 Info Please
- Installing a tube bias pot
- Pull tubes in a 4 x EL84 amp?
- Help choosing: 8 or 16 Ohm speakers...
- Are these tubes viable in 6L6 amps?
- Hot-Rod Your Blackface Fender Normal Channel
- Blues Junior safe with 4 ohm load?
- When you cant find the right multi cap??
- Deluxe Reverb Reissue Footswitch question
- 6V6 question
- valve art kt66
- Where is the bias pot in my Rivera Rake?
- Bias and rectifier tube swap in Tweed Deluxe and Tweed Bassman
- When a filter cap goes bad....
- Vibrolux reverb power supply resistors - change for more headroom?
- Why No Sound?
- Can you fix "loose" preamp sockett
- Difference between an English and Chinese made Celestion Vintage 30 speaker?
- How to determine the correct reverb pan?
- One of my four 6L6 doesn't show blue light inside!
- Beginner Amp Kits?
- Can it damage an amp if...
- Which pre-amp valve would be V1 in my Carlsbro 60 Twin?.
- Sovtek Mig-100 Mod
- Mesa 50/50 conversion to EL34's
- How hard is it to work on an amp?
- Fender reverb tweaks, mods?
- National 12AT7?
- Would any triode go into my preamp?
- In case anybody wants the official Marshall 5881 to EL34 conversion guide
- When caps go bad....
- 3x10" speakers in a combo
- Can anyone help me in indentifying 2 Vox amps?
- looking for some help
- Transformer Info
- Amp Buzzing?
- Powerblock preamp similar to Ampeg SS?
- Tubes for a 66 Pro Reverb
- Bias and wall voltage
- Yugoslavian Telefunkens
- Power tube falls out at high volume.
- Phase Inverter missing pin
- Fender '68 Deluxe Reverb: Treble acts like a reverse master, cuts Vol at 10
- GE 6V6GTA vs Brimar 6V6GT vs Tung Sol RI's
- Source for a tranny for fender brown deluxe (6G3)
- Potential Isolation Transformer
- Concert II Reverb Issue
- Trout, Brad I found the treble feed back issue
- replacing power light on ampeg super rocket
- How much do capacitors & trannys affect sound?
- How To Calculate Wattage With Mismatched Speakers
- 1979 Marshall JMP Combo - Is it all tube?
- Just wondering...
- AMP not right - HELP?
- Has anyone tried this reverb mod for Hot Rod Deluxe?
- SF/BF Twin Reverb- a couple of questions
- Installing a detachable power cord
- 65 Vibrolux Reverb Can I use the clean and tremlo channel simultaneously
- Help appreciated - strange hissing noise
- Weber Channel Switching Boards
- Calling all techs....(this is a longshot)
- cbs champ schematic
- Soldering Iron Temperature
- ghost note causes
- Rhodes Mark I trouble
- Mdifying cheap speakers for better tone and more power
- Dual boost/cathode boost?
- point to point wiring principles??! Trace Elliot speedtwin
- What are Teflon caps?
- hayseed 30 owners
- Multimeter / discharging caps question
- can I run my digital studio recorder through my guitar amp???
- Do i need to buffer the post preamp signal if i put an effects loop in my amp?
- Rectifier tubes, current draw and plate voltage ?
- Groove Tubes 928-PR Converter Question
- help me make my classic50's efx loop footswitchable
- 66 super reverb
- Replacing an 8ohms speaker with 16ohms in my combo - will the amp fry? good/bad ????
- Traynor amp making distorted sounds
- I know this isn't the amp forum
- 6K6 substitute 6V6
- Transformer manufacturers
- JJ 6L6 Review
- Blues Jr Hiss
- Brushless fan install on a Hot Rod Deville
- My First From Scratch Repair - 67 Bassman + Mods
- Tech question for Brownface Fender? Help!
- Blues Deluxe jewel fading in and out
- capacitor voltage values (wv and v)
- What is the Paul C mod in an amp?
- Tonal quality of orange drop caps?
- Help! Amp is making a strange noise (clip inside)
- New pre amp tubes for JMP 2203
- Fender Deluxe Reverb Volume Loss
- Biasing? "lethal", "danger", "NOOO!"
- Bogner XTC 101b
- Princeton Reverb vs. Deluxe Reverb Tone Difference?
- Garnet Rebel II with mystery caps??? help
- Blockhead Custom 50 - Redplating and Impedance Weirdness
- Calculating bias shift in cathode biased amps?
- egnater hiss
- Building a footswitch for my Brunetti Mille. 4 jack connectors?
- Biasing 6V6's
- Super Rev. blowing fuses one after the other
- HELP: Do I Have a Blown Speaker?
- Question about a rectifier tube?
- Fender clean-sound compact preamp suggestions?
- What is the secret of Laboga - Mr Hector?
- Quiet on the tech front??
- blackface champ project
- New Fender Amp Field Guide
- where or how can i get my control panel on my Fender amp "renumbered and relettered"
- What's wrong with my JCM 800?
- Randall (Egnator) preamp modules: Can they be used without their amp chassis?
- DRRI Died (Help)
- 5E3 Build - 1st Project and few niggles...
- Speaker voice coil rub
- 1962 Fender Brown Deluxe
- DRRI is making bell-like noises
- Anybody in/around Tampa Bay, FL have a tube tester?
- Radio interference with ZD2 engaged ???
- 1963 Fender Brown Deluxe
- Tell me about oscilloscopes
- Positive and Negative Wires in a 1x12 cab
- Scratchy pots on jcm800
- pots for peavey classic series amps
- Light amp crackle and static
- Evh 5150 iii
- Modern Beeswax Caps
- Replacing Peavey amp pots?
- Twin Reverb RI Humming - Preamp Tube Question
- Princeton Mod
- Electric shock from a guitar
- SMF 15 watter schematics
- What to do with a V30 w/ damaged cone?
- my radio shack sucks
- Dumb line out question
- 59 Bassman Tube Subs
- Peavey classic 50: reverb not working
- Class-D compact "Power" amp recommendations? (AKA "digital switching" amps)
- Traynor YBA-1A mk II: adjustment question
- Peavey classic series footswitch not working
- Safety Tips For Working On Amps
- Bias Probe Multimeter question please help fast
- How pot resistences effect tone?
- Speaker guessing challenge !
- Problems on Biasing a Marshall Superbass 1992
- Power tube took out my amp
- 6CA7 vs EL34
- GE Black Plate 12AX7
- can bad tubes cause loud hum and buzz?
- Peavey VK 112 with Hot Plate, help.
- crackling noise...
- Not only tube amps need a cap job...
- Vibration in SF Fender
- Atomic Reactor Help Needed!
- Rotary Switch for Neg feedback wiring Question...
- '66 Bandmaster cap job questions and OT change
- Pulling power tubes for reduced wattage?
- Accutronics - old vs. new?
- identifying values on orange drop capacitors?
- Crate VC30... Sound Disappeared?
- Least compressed sounding 6v6's?
- What Fender circuit is this similar to?
- overcompressed sound in new amp
- Vintage amp tune up!
- Are these Mustard's dying , or not ?
- TwoRock Tone/Contour control
- NOS 12AX7 for Marshall 2204
- schematic for vox ac30 custom classic?
- Crackle and pop!
- Marshall 1974x suddenly very quiet
- 6V6's in my Supersonic?
- switchable voltage 120/230 = switchable cycle 60/50Hz
- Good quality filter caps for Marshall
- Peavey Rockmaster footswitch
- Oak for a 2x12 Speaker cab?
- Self biasing amps and non self biasing
- how big of a job is it to convert a 50 watt to an 18(ish) watt
- Screen Resistor Replacement
- Baffles- floating or not?
- Some noise problems with a Vox AC30CCH
- Vintage Amps and Stepdown Transformers
- Amp bias problem -- techie amp guru's please come in
- patch cord link
- lightweight, semi-open-back, 12", speaker cab recommendation?
- Burning Smell with new Mesa 6l6's
- Help! Strange Blues Junior problems!
- 2 6V6's, different sizes??
- some pics of my first plexi build in progress
- does my amp need to be biased?
- Super Reverb - which tubes power the reverb?
- Fender Pro Junior problem
- TMB tonestack: Bass control not working
- Help, what are these in my sovtek Mig 60?
- Heritage Patriot 212 with harsh tones all of a sudden...
- Refurbing a really old tube amp... Advice/Pointers
- How much volume difference would you expect?
- Super Reverb ('73) decision...
- Can a 5AR4 (GZ34) be substituted with 5R4GYA
- 5Y3 replacement
- JCM 900 red plating
- How do I?
- Help with Yamaha RA-100 amp...
- never change your filter caps again?
- Fender Hot Rod DeVille 2x12
- Tone controls at minimum on my Bassmate
- Replacement 6V6's: What to buy?
- 8 Ohms in a '67 Vibro Champ
- Marshall JCM2000 LEDs on but no signal?
- Fuses keep blowing, help
- ert33 tubes
- DRRI preamp tube swapping question
- Need '62 Bassman Chassis Specs
- Question with egnator rebel
- JCM 2000 DSL shocking me
- If you haven't already, you GOTTA make one!
- Help, Amps humming like crazy
- Swapping Components - which ones, brands ,etc . .
- egnator rebel concern?
- Wiring up a 2x12 w/ EVM-12L - Use Compression Tabs?
- Do I need a preamp?
- Bruno UG30 - Shimmer Sound When Put on Standby
- Celestion Blue Ohm Help ...please.
- Speaker mismatching with different companies
- Allen Blackface Mods - condensation thread
- Amp made a loud pop and silence.
- Controlling Fender Verb???
- Fender Hot Rod Deville- Volume Box?
- The very lives of my vintage marshalls and hiwatt are at steak!!!
- Warning! Fire in the scope!
- lowery organ tubes
- Are EL84 and 6v6 interchangeable?
- Bogner Shiva: Channel 2 Bass Dropout
- How does Fender Reverb work?
- Fender Twin Pro Tube = 100 watt boat whistle
- where to buy resistors..?
- Compu bias or Bias rite.
- Parallel effect loop -with no buffers
- Peavey Royal 8 mods: Suggestions please
- Trying to fix an old peavey audition plus...
- Marshall 1959SLPX Power Tube Removal
- 16 ohm V 30 Celestion g-12
- 6l6 gay
- Peavey Classic 50 Reverb Problem
- 5f2a Princeton clone-what 10" speaker?
- Pro Reverb question.
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