- SS rectifier & 6L6's in a 64 Deluxe
- Are there "bias test point" kits?
- Re-wiring old PA amps for guitar
- loud hum in amp--like ground hum(?)
- safest place to buy NOS or USED TUBES?
- Blues..........
- Class A Deluxe ?
- Fender blues Jr
- Two filter caps 500% off spec!! WTF?
- Will this hurt my amp?
- Can I use a 5U4GB in a tweed Bassman
- Is switching between 6L6 and EL34 just matter of re-biasing?
- Stop, hey, what's that (60 Hz) sound?
- Head Shell vendors?
- AB868 - Q re. cap on V3
- Tim C Vibroking Mod...Review
- vintage tube experts,i have a question?
- Hot Deluxe Reverb
- Mismatched tubes=bad, right.....?
- The Amp Bias spreadsheet and more...
- Custom Chassis???
- converting a guitar amp to a Hifi amp...
- Where to find EF86 ultra-linear schematics for inspiration?
- Multiple amps again.
- Fender Bassman RI Tube Question
- Great site for Mullard and Telefunken`s cheap
- Questions on using a speaker load to bias an amp...
- Bad readings using Weber bias rite kit. Help!
- Standby Switch
- ptp board or Mercury Magnetics OT for 59 Bassman RI
- marshall jcm 900 cab w/ 1972 50w head?
- Hoffman 5F6A board for 59 Bassman RI
- Is there any way to compensate for the "drawbacks" of 6v6s?
- GT "substitiube" rectifiers
- how much do you need to know to build an amp?
- Which amps can you bridge channels on?
- HELP!!! My amp is messed up!!!
- 12AT7 vs 5751
- Just Got My Weber Bias Rite ...
- Odd amp noise question
- Replacing Speaker Wire
- Bias 6L6WGB?
- Padding in Closed Back guitar cabs?
- Making Sense Of Bias Numbers
- marshall plexi opt replacement?mercury magnetics or obsolete electronics?
- 65 deluxe power tranny troubles
- Further Mid Scoop on a Fender Tone Stack?
- Chassis voltage question
- What must "match" on output tubes?
- Need BF Pro Reverb help...
- 1/4" Female to Female Speaker Adaptor
- Date my Fender!!!
- ARRRGHH!!! I'm pullin' my freakin' hair out here!!
- Sell or mod my 64 bassman AA-165?
- Bright Switch too Bright on Top Hat!!!
- Need pix of original 20W Marshall PTP boards
- guitar signal data
- Tube primer
- Ecc88
- Filter Caps
- Is 100uf too much for GZ34?
- Tell me I really got GE EL84
- Not getting a mA reading in one of the pwr tube sockets
- New Groove Re-Issues?
- 12BZ7 info?
- Running 4 cabs???
- Books to read re: amp building
- Marshall Ohm's selector
- Tools for building cab
- Preamp tubes..............?
- Super Reverb rectifier question...
- Help me understand Tube Z-Out
- Voltage too high
- GT Hardness rating and biasing
- Cathode Biased vs. Real Class A
- Biasing a '67 Marshall with no bias pot! Er... how?
- Boutique Marshall opinions, please
- biasing question
- upgrading a DSL 401?
- Master Lead 50 Watt Power Switch
- John Phillips
- Re-tension a tube socket ???
- Help putting in preamp tubes!
- JJ Caps - Comments Please
- Odd bias behavior - Mazda 6V6's
- Peavey Classic 50
- EI 12AX7 tubes----are the new ones any good?
- Turret board suppliers
- tube output
- Trouble with my 5E3 clone
- Weird amp problem or not?
- RCA Blackplate 6L6/TAD tubes question
- Filter Cap Question??
- DC area Tube Amp Seminar?
- Where to find chicken head knobs?
- tone of orange drops?
- Does the rectifier tube really affect tone?
- Re: SF Super to BF...Anyone know about this Torres kit?
- Hiss question on a tube amp
- turret board pic
- wanted:schematic for trace eliott bonneville 30
- Problem with tone controls. Please advice.
- Classic 30 blows phase inverter tube
- How to make a shorted RCA plug?
- Amp techs in SE WI?
- Bias Mod for Mesa Mark III
- Hiwatt 60-cycle hum
- restoring my jcm 800
- Help! Blown transformer on blackface champ
- Series Parallel or Parallel Series Cab which is it?
- Help Ohm setting for this combo?
- My new amp chassis design!
- Does this sound like a shorted preamp tube?
- What would I have to do to get more headroom out of a 65 RI Deluxe Reverb?
- "Class A" tubes for Boogie MK IV?
- What’s the easiest way to fix a scratchy pot?
- HELP I'm a bias virgin!!
- El34 winged C's running at 45 ma. Issue?
- Amp hum with no guitar
- Any Issues Running An Amp On Its Side?
- digi key distributer
- Interesting way to evaluate your amp
- 16 ohm speaker question.........
- Amp has no mid control and other questions....
- Amp kits? Whats all out there and whats the best?
- anyone ever bought tubes here?
- Other brands of Capacitors?
- JJ 6V6 in a Bonneville C50?
- Standyby switch thump
- Blowing fuses
- Mullard 7189a OK for marshall DSL201?
- Proper bias for 7581A ???
- transformers, HELP!!
- Marshall Plexi Squeal - Experts: Please help
- Is my mullard dead if there is no Flash?
- Can you tell what tubes these are? (Mullard)
- Problems with Hot Rod Devilles/Deluxes?
- Tube Tester Suggestions?
- safe to plug my amp in a combo's speaker?
- Dr. Z tube layout.........
- matchless clubman 35 help!!
- What tube is this?
- Anyone know where I can find malory capacitors, alan brandley resistors?
- Boogie Mk IV Problem
- Rivera Fender Concert mods
- A question concerning speakers...
- Bandmaster reverb
- Cleaning Tube Sockets
- Help with my Divided by 13 SJT 10/20
- Power supply caps (brand).. Favorite...Does it really matter?
- To all Soldano SLO-100 users
- Rectifier Tube Question
- does the choke affect the sound of an amp?
- If I wanted to build myself a JTM-45 clone, where would I find the parts?
- Can a huge jump in amp volume blow your speakers?
- Amp techs in Connecticut?
- convert a bass mate to a 4x el-84 amp
- hum in replacement reverb tank ...
- Long Plate 12AX7, questions...
- Austin Tx amp tech
- power tube/bias/mismatched tube question
- Princeton II schematics
- How do you read chicklet capacitors?
- Speaker and tubes for a Kalamazoo Model II?
- Can anyone recommend a good soldering iron?
- Help? Running Two Amps
- Soldering Advice Please...
- Headroom
- Anyone know how to reach Mike Holland?
- Problem with my Komet?? Help!
- long technical question for techs!! want to use small amp to drive big amp
- Complete Rebuild of a Deluxe Reverb Amp
- Another soldering question
- SF Vibrolux question...
- Gain Differences in Halves of Dual Triode
- reactive vs resistive attenuation ?
- Amp switch ratings
- 5E3 or 18 Watt?
- Always Drain Your Filter Caps
- 7189 tubes in aLead & Bass 20?
- Has anyone worked on a Guytron?
- Output power
- Need help with 6550's
- Can you swap a 12au7 for a 12ax7?
- muffled cranked sound...at full volume only...
- Tubes glowing question?
- Marshall question. Resistors on the control grid
- Anyone biased a Rivera?
- Mesa Studio and Bias
- Main tubes or preamp tubes?
- about power cords (not chords)?
- Speaker power and Magnets
- Glue for Filter Caps?
- OMG!_Look what someone gave me last night!!!
- 7591 7868 are these tubes similar ??
- Switching 40W to 20W w/EL84 amp
- Does it matter which springs you remove
- Removing Negative Feedback Loop in Super Reverb?
- Busted Speaker
- Tech info on FX =bad= in the Loop?
- Set the Bias in MA, what about voltage?
- EI EL 84s
- Generalizations about plate size
- Two heads into one cab: Huge noise
- Help! Blackfacing a Bassman/Bias Conversion Question...
- Pro Jr amp hum problem
- Allen amp-loud hum
- 6L6 to el-34 conversion?
- V1, V2, V3
- Jammed Ohm Selector . . . Help please
- power transformer output voltage
- Have you ever used a vintage.....
- Vibro Champ Mods?
- Class A amp questions
- Development of sound waves
- technical questions - tube vs. solid state, etc
- pulling power tubes to lower headroom
- Can I run a 16 ohm and a 4 ohm cab together?
- Blowing fuses on startup?
- Power Tubes for JCM 800
- What is "JAN" in tube names?
- What's a "getter"?
- Cripes! .. The ol' blackfacing a silverface question again.
- Telefunken 12AX7....without diamond
- Tube look like stop lights: HELP
- new tubes[smell?] questions/help
- LEDs for amp footswitch
- Marshall 2061x Preamp Questions...V1 vs V2
- SFDR Amp Hum
- How long can I expect the el84 powertubes to last?
- Silverface Vibro Champ - Sounds like Do Do!
- Can you use 7189 tubes in place of EL84's all the time?
- two rock phasing??
- Tube ID help Please
- Champ problems
- Silver solder: Tone difference???
- amp messed up?
- Is the Amp Kit market oversaturated?
- Need amp tech in NYC
- Bad solder joint noise? Or to much bass
- Svetlana 6L6GC vs. GT6L6GE
- Traynor reverb question
- Marshall Cabinet Corner Question
- Unsteady bias in Rivera . . .
- 12AU7 in V1?
- Fender BF trem mod in Guitar Player
- EL 34 identification
- amplifier input impedance
- trouble with a mint brown super
- Need a little help with a 61 Deluxe -