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- 100 watt head into a 50 watt 1x10 speaker?
- Tools / Process for Rebiasing DRRI
- Any love for the ampeg jt-12?
- Can anyone tell me what kind of amp this is?
- Installing a Speaker and F/S Jack on a Fender Champ 12
- using fender amp ground switch as impedance selector
- 125DSE and 269EX transformer set lying around
- "Life Test" on Used Tubes
- Amp repair shop...necessary tools?
- What speakers are these?
- Laney ProTube AOR extremely farty on low end..HALP!
- Tube Rectifier v. SS rectifier and clean headroom? (TopHat content)
- 64 vibroverb custom fuse
- Amp conversion
- Vox AD15VT Problem
- Is there a proper way to ground out a solid state before servicing
- Which Oscilloscope and signal generator???
- Which tube is my tremolo tube? diagram included
- Does this amp ever need biasing? Diagram included.
- Replacing Orange Tiny Terror Tubes
- efficieny of a 4ohm speaker vs 8 ohm speaker
- Princeton Reverb Reissue circuit?
- Need a bit of direction...
- 7591 info?
- Bogner Shiva. # of gain stages
- Tech. info on pedal?...fuzz face
- SF Princeton problem
- Will that fuse eventually go out?
- Which rectifiers are designed for 3 amps?
- Vox AC15CC - Higher current mains fuse?
- what resistor do you add to stop "ticking" on tremolo FX fender amps
- Mesa Express 5:50 112 rattle at high master vol settings
- SO, what happens if I don't have the bias adjusted?
- KT88 and 6550, what max. dissipation?
- Help! Problem with amp!
- It's time for new tubes when....
- 1/4" jacks--Open or closed circuit???
- Using 400v cap instead 600v ... repercussions?
- Princeton Reverb Problem
- Amp Popping sounds
- Can someone explain, in dummy terms, what effect a 12AX7 has on the tonestack?
- What are the symptoms of an amp needing a cap job?
- 1971 Super Reverb technical journey...
- Biasing an Orange or80m
- Help, Smoked My Transformer
- Anyone know how to use a voltmeter?
- Push Pull Question
- Ground Lifts - Dangerous to Use?
- Space heaters versus my amp
- High pitch squeel
- Amp Tremolo
- practice space, voltage regulator?
- ok... I've been in here before with this sucker... rectifier questions...
- Is it possible to fix an Accutronics reverb tank?
- 6SC7 tubes - anyone have a good source for non-microphonic examples?
- Bias fender blues deluxe RI question
- Hughes and Kettner amp pre amp info
- Amp tech/repair in Reno, Tahoe,Truckee, Sacramento, or Bay Area?
- Are reverb tanks interchangable?
- VOLUME AND BASS LOSS.changed imput jacks.my tech said power tubes are ok
- Question about Speaker db’s and math …?
- Marshall 6100 bias adjustment?
- Amp Knob Replacement (Two-Rock Knobs)
- Finding the mA in a device?
- type of solder to use in amplifier work?
- who makes this power supply transformer ?
- What's a good 6V6 tube?
- Amp Speaker Cable Question
- Changing tubes in Crate V18, V33, V50
- Do all mullards flash at startup?
- Narrow Panel Tweed Deluxe Output Transformer ????
- Mods for Crate VC 20 (Old Vintage Clubs)
- mechanical rattle when firing up old amp
- a slightly different filter cap discharge question
- Removing resistor at input on master vol models???
- Help! I need speaker advice for a Super Reverb
- Tales of Twin Hackery...
- First amp, need tube ID help
- triode mode vs. pentode mode
- Adding additional speaker output jacks question
- jcm 2000 dsl blowing fuses
- blackstar HT-5 volume issue?
- Single rectifier problem
- Ohms Mismatch
- Are you experienced with NOS tubes?
- Can't figure out this resistor
- I'm at my wit's end!!! Part search...
- another bias question
- Crate Vintage Club 30 Speaker Advice
- Help with Naylor amp needed.
- Yet another Phase Inverter Tube Q
- Can I identify a bad tube by looking at it?
- Does my amp need a retube(Marshall)??
- 2203kk schematic
- Need Brown Princeton cabinet dimensions
- Good book on amp circuits
- Got a nasty distorted sound on top of every note...
- I can't wait to cut one of these open
- Harp player wants me to re-work his amplifier - circuit suggestions sought
- Orange OR80 chassis hardware?
- Mullard 12AT7 - CV4004 vs. CV4024
- Asian Engineer???
- Odd Ghost Notes - Bad Filter Cap?
- Blues Jr Tube Swap? What Sounds Good??
- What could cause this strange noise?
- Plate Voltages
- Amp killed my pickup?
- Bias switch on AC30CC
- This is why you don't replace a fuse with one of a higher value.
- 6G2 Princeton Speaker Recommendation
- Tube tester repair?
- reverb tank is more sensitive to vibration than most I've seen
- Which 6SJ7 tube?
- Replacing a Marshall preamp tube socket.....
- Which tubes to pull?
- My vintage Mullard 12ax7 is microphonic. Any hope?
- Gain Structure 101: Now Showing in Amps and Cabs
- Voltage Switch
- Pulling 2 x power tubes plus UA ?
- musicmaster circuit help?
- Adding a bright cap...what size?
- Issue with Divided by 13 LDW
- Boogie Tube Placement
- EL34's.....
- Nomad 55 Reverb not working
- Anyone familiar with the Fender Yale Reverb circuit?
- Forgetting to connect amp to speakers.
- Cutting cone from speaker to use as a dummy load possible?
- Should I avoid using a 100 watt attenuator w/ a 20 watt amp?
- Help: Tube Identification
- static.....tubes??
- Does anyone have experience with the Iron Sounds fx loop kit?
- peavey classic 50...
- Pittbull 45 loop question...
- Ampeg Gemini I reverb issue
- Soldering Question
- proper height for a vibroclone cab is ???
- 5E6A versus 5E8A Narrow Panel Low Power Twin and 2 Hole Bassman
- Do Super Reverbs and Vibroverbs have the same guts?
- Super Champ seeing 2ohm load?
- twin reverb silverface 135 mod...again:)
- Speaker hiss in overdrive channel
- power transformer correct?
- 5ar4 Rectifiers....which new production tubes are decent?
- Big disparity in 6v6 current draw...
- Does Power Tube Vibration Contribute to "Tone"?
- Tonestack/Hiwatt: "Old" VS New
- Could Someone Please Explain..
- Bad Cat Hot Cat 15```
- WTB/Looking for 1M-LOG Push/Pull-Pot DPDT Mastervolume in Fenders (01154
- 1st generation Jensen neo vs. 2nd generation - how can you tell?
- Can anyone help me identify these tubes?
- Rivera knucklehead... Please help me.......
- 1982 Fender Pro Reverb - Vibrato not working
- Carvin V3 tube replacement
- Groove Tubes GT6L6GE opinions?
- Clark Beauford makes strange noise
- Start-up noises on my blues jr...
- PCB Design Grounding
- All the noise noise noise
- Hum X?
- HELP! Weird distortion.....Sometimes...???
- No Breakup and seemingly low plate voltage
- peavey classic 50 212 with celestion gold and hellatone 30
- how to add reverb to a Fender "Normal "channel
- Question on attenuating a small signal
- crate palomino v32 - tube/speaker swap?
- Funny Speaker noise... help?
- Just another wacky Tube issue (challange)
- VC20 speaker swap
- Heritage amp owners...
- Strange Problem--Sovtek MIG50
- Triple Rec Problem
- What could have went wrong with replacing a tube socket?????
- 3.5A Fuse?
- tubes and speakers for HRD
- How do you Metal Scoop an Amp?
- which tubes to replace, where, and why
- Tremolo "Roach" circuit info.
- Help with biasing '57 Tweed Twin RI?
- Amp Has Volume Issue
- what caps are closest in sound/feel to old mallory blue 60's caps?
- Blues junior reverb fail need urgent help thanks
- Which reverb pan in silverface Twin?
- know of any interesting fender reverb circuit tone mods?
- HELP!! Schem. JMF Spectra 60T
- Deluxe Reverb with 6L6s ?
- Noisy Vox AC15CC
- Traynor ysr-1 1967-1969 questions
- Question for Myles: GT 12AT7 and 12AY7
- Link for making a new grill?
- Do I need to bias my Blues Junior when replacing the power tubes?
- Help, Vicky 20112 no sound!?!
- Problem with California Blonde - HELP!
- 1965-1967 Pro Reverb Chassis material ??
- Marshall 6100 Blue Tolex - Intermittent Buzz
- Egnater Mod 50 problems
- Ampeg B25B speaker cable
- What would the effect be if...
- Help modifying bandmaster for reverb or just for more gain
- Color codes for Peavey Delta blues OT???
- Re-voicing an amp circuit?
- HELP! Amp Question
- Purpose of the "fizzy" (PI) cap?..
- Where can I get a Marshall logo - ....
- ab165 bass channel mod?
- Boogie volume loss help
- Want more "definition" from wound strings...
- What would cause noise to come through the speakers while the amp is on standby?
- I keep reading about phase inverters... do microphonics matter?
- Transformers for Zinky Mofo/Blue Velvet's
- Bassman AB165 Question
- Multimeter Advice......
- Building New Marshall Silver Jubilee 2555
- Another Deluxe Reverb question...
- What to build bandmaster ab763... where for chassis and parts?
- Mesa Bass Head
- Tell me about an "impedance mismatch"?
- Rented backline and bias
- Neil Young's Rig (Herzog)...Tone Quest Report question.
- New 5e3 deluxe clone with hum
- Marshall JMP 50 Watt 1979 questions
- Combo Cab for Dual Showman Chassis?
- Dean markley RM 80 DRM
- Mesa Boogie Experts (express5:50)
- 5E3 Help
- Volume loss and bass increase - Why?
- How difficult to change 2 prong?
- Do I HAVE to use this footswitch? (Fender Twin Amp)
- Matching speaker power to Amp power?
- Info on this Mullard?
- Modding a Deluxe Reverb to make the normal channel a gain channel?
- Ceriatone Kleinulator FX Loop
- POLL: channel switching, Abrupt or Gradual?
- Caps in my 1963 Gibson ga 8t Discover
- Jensen speaker model?
- SF Pro Reverb delay before tremolo kicks in
- How to handle vacuum tubes? I'm new to this.
- "cut" box question
- Learning Tube Amp Repair/ Servicing
- how do i chek the caps
- Boogie Treble Control works 7-10 only
- Mesa Maverick Rattle
- One powertube lights up bright blue...No sound...Loud hum..
- Home built Twin AB 763 Reverb channel Problems.
- (Korg) Vox AC15TBX Reverb Problem; Help!
- 6V6 Tube ID
- Can't reach desired bias setting
- VVR in a 5e3 Deluxe?
- Tube layout on the Gibson ga 8 t
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