- Tube biasing question
- Anyone know what a 5687 tube is.
- Preamp tube flashes at turn on?
- A somewhat off topic question...
- Amp Chassis Source
- Tell me about these tubes..
- When all pots go scratchy (not due to bad pots!)
- Good amp tech
- EF86: philips, siemens or mullard
- generic 1/4" adapters for speaker cable use?
- Negative Feedback (?)
- Pentode, Tetrode, Triode, Diode... Ode to 'Odes
- Best Filter Caps for Marshall?
- DRRI question
- Stupid question, I forget...
- Marshall JTM 30 Bias Adjustment
- Vibrochamp issues
- Bias range for JMP style amp
- Amp tech in NYC?
- Rectifier Education.......can u help pls?
- Good NOS 6K11 for Ampeg V-4B?
- Phase inversion technical question
- speaker cable question
- how many watts would this be?
- spare fuses
- Please see my "Bare Wires" thread in G&A Section
- Hey GUYS..DID I SCORE, OR NO?
- Mesa Mk 111 Bias Problem
- Is Sprague the ONLY electrolytic?
- 5U4 --> 5Y3 in a Recto?
- Tube ID
- 12at7...?
- Can I run these? 5R4GY & 5R4WGA
- Noob output trans question.
- Is it possible my Bassman 6G6-B wants 8 ohms?
- Raytheon 12ax7a.............. Wow!!
- YAMAHA G100 410: Intermittent problem
- Cap Identification help please.
- soldering station
- Egnater Nov 18th seminar
- Speaker Leads - Pos Or Neg To Tip Or Sleeve ?
- HELP: My Jubilee 2553 hums when switched to half power
- Leslie 147 Tube Replacement
- Fender Princeton volume pot issue
- Ok, what did I do? Sovtek head blowing mains fuse..
- Can we talk about speaker distortion
- How hot do tubes get?
- Where do you get your tubes?
- Bias troubleshooting - 2 questions
- Tweed Super Bias
- What the hell is going on?
- Amp Diagnosis Needed
- 12AX7 ID Valvo or Matsushita ?
- Are NOS 6L6's all dried up?
- Reverb makes hum and feedback
- How To:Diag. OPT failure?
- Run amp at 4 ohms or 16 ohms?
- Tube ID: Is this a genuine Mullard
- Tube ID: another Mullard question
- Amp Gurus, Rocca, FJA - Mesa Rocket 44 Hum
- Quick/Dumb question
- 6L6's vs. EL34's...what's the difference...
- Can I use a 5U4 in my Vox?
- Need Help Solving Noise Issue in my 18watt TMB
- Heritage G12H pin/turret Problem
- Epiphone Valve Junior Tube Replacement question
- Speaker Wire (Inside Cab)...16AWG?
- Ef86?
- Wiring Diagram for two jack series wiring??
- Microphonic 12ax7
- Tube Socket Troubles?
- Got the Motorboat Putt-Putting around in my amp
- 12ax7 Id?
- Vox AC30 Reissue...
- Trouble shooting my amp
- 1964 Pro Amp??????
- Tube Newb bias question
- HRD tweaking questions
- More 12ax7 ID
- Help me with my Hot Rod Deville man!
- Making A Reverb Unit Out Of A Reverb Tank (question
- Listen to this clip and tell me whats wrong
- JCM900 inside pics needed...
- Crackling noise and amp cuts out and in
- AC30 annoying hum?
- Seperate Cathode Resistors for KT66
- Best NP 6L6's?
- Rocommend tubes for my Fender Concert (rivera era)
- Who makes Mesa's branded tubes?
- Laney VH100R Questions - 5881 Sovtek
- Noob tube question re Victoria Sovereign
- Dumb tube question... English GEC KT66
- HELP! I've never had to replace tubes before!
- Epiphone valve jr. OT mod
- Odd sound when I play a high E......
- How does the EL34 Shiva pull 80 Watts?
- Toughest New EL-34 ?
- My Traynor Bassmate caught fire
- I want to rebuild my ep-2 echo plex need help
- Crackling Noise, A Power Tube With Bright Orange Blob...
- Testing an Output Transformer for a short
- Need help with headroom JTM45RI
- 6V6 Tung-sol or jj's?? or other new tubes
- Diagnose problem with my Deluxe
- I Need Help*******(JJ users, I have a question)
- another (easy?) ohms question
- DRRI OT-Who makes the best?
- Couple of Tube Questions...
- 6W6? exact replacement of 6V6?
- Laney VH100R Update!!!
- Double Deluxe kits?
- Diagnose this...
- Can you run an 8 and 16 ohm speaker together??
- A lil effects pedal help (ross phaser)
- Can I use GEC kt66s that ain't matched in my jtm45?
- external speaker out to direct box -- bad for amp?
- Raytheon short plate...
- Found a few tubes..I wonder are they recto's?
- What determines an amps volume?
- pulling ONE power tube in a 2-power tube amp
- Silver plate 12AX7 ?
- Bad Cat Cub, blows fuses
- RockyTop JTM45 Jumpering . . blew fuse ?
- Question for you amp gurus
- How do I safely remove the bell cover from my Alnico Blue speaker?
- A good, inexpensive, soldering station for doing amp mods?
- Broken input jacks
- 6L6GC's: Ruby Tubes?
- Vintage Fender 4ohm to 8ohm?
- Need help
- Whats the best way to change a 2x12 cab w/ 2 16 ohm to 8 ohm?
- TAD 6L6GC Vs SED Winged C
- Dead 'Verb on my Trem-O-Verb
- OT brands - price/performance difference?
- Are there any good stereo amp plans out there?
- GT Soul-O 45-signal cutting out or amp humming loudly
- BFDR Hum
- Tone King Imperial Bias Question/Issue
- Carr Mercury experiment: 6L6 vs EL34 vs KT66
- Retubing=Less Volume - Why?
- Classic 30 (head) minimum impedance?
- 12at7 in V4 in blackface amp?
- Blues Jr. tube question
- Marshall question - what are the preamp tubes for?
- Fender DRRI was dropped and it ain't happy
- Brown based Marshall EL34 any good?
- VERY low output on my marshall 1973 50 watt help!
- speaker motor based attenuator
- Using a resistor to change speaker ohms?
- Is Speaker Dope Rubber Cement?
- Why does my Reverb pedal have no effect?
- Blackface Family Ties: Three Wayward Deluxe Reverbs
- Who Makes Nice Marshall Cabinets?
- capacitor discharger
- Did some maintenance, now a problem.
- Bias Question or better..no bias question?
- Silverface Super Reverb Problem
- How much experience/knowledge before modding?
- 6l6GC / KT-66 (question)
- EL-34 Bias ?
- wiring speakers for ohms? HELP!!
- Doug's Tubes
- KT-66 / question
- My amp just died (??) help!
- Breaking in a guitar speaker on a stereo?
- Speaker 'clicks' or 'snaps' when pushed?
- How do you use the line out of an amp head with another power amp?
- Rivera, replace which valves?
- first time for everything...Time to replace some tubes..
- Wierd Amp Crackle - Clips
- 5U4 vs 5Y3 rectifier tubes
- Why Do People Sometimes "Under-spec" OTs?
- Keeping dust out of open sockets?
- Gibson GA-30 Help
- EL84 screen voltage compared to plate voltage
- Testing Capacitors for DC Leakage
- sound bleeding into both channels on amp
- Cracked Circuit Board
- Voltage/Bias & Amp Performance Questions
- Testing an unknown PT
- What the heck are these Marshall pre-amp tubes?
- EL34's for a 520V (plate) amp?
- NEED A QUICK TUTORIAL (Transformer content)
- Trace Velocette Arrived - with Problems.
- 5y3 to 5u4 swap?
- Vintage combo amps...new speaker cable
- Epiphone Galaxie 10 Project
- speaker wiring in a hurry...can I use E tape for tonight?
- NOS Valvo El84 Question
- Biasing a Traynor YBA-1A
- building a few things need help....
- Where can I find CASE PARTS?
- Tried The Jensen Neo !2"
- Any good reason not to get Radio Shack solder?
- Ampmaker OT01
- Repair/disassembly tricks?
- Which multimeter?
- Mains Fuses on amps 4-5 amp (Slow or fast blow?)
- Auto biasing?
- Weird problem here......
- Can someone ID this 12ax7a? thx.
- soldering a 1/4" switchcraft jack question
- Are bias resistors good enough?
- Patch tear in speaker?
- Radio signal when I ......
- Biasing Question RE: Vp & Ik relationship
- Vintage Amp/New Caps
- Selecting 7581A in the correct bias range for a Mesa/Boogie DC-5
- Are These Stock Jubilee (2204) Bias Readings Correct?
- amp building
- 1965 Gibson GR25rvt Hawk
- Fender amp parts question
- ARS Tubes?
- Slope resistor
- In any 4-power-tube situation, you can pull out the outer two
- speaker or instrument cable . .identifying
- Blackface Champ Chasis
- Feedback/Squeeling issues
- 2 amps and trying to avoid ground loops...
- Anyone have a problem with reliability on SED tubes?
- Deluxe Rev Bright cap question
- One Excellent Tube Dealer!!
- Clark 5F2? Is this a Clark Princeton or Champ?
- Faintly glowing plates on a new Super Lead build. What to do?
- Traynor Custom Reverb lack of headroom???
- Tweed Princeton ?
- how MUCH power?
- Same amp,same speakers 4x12 vs 1x12 which is louder...
- Speaker Solder
- Where Can I Get These In Bulk?
- 2 DR's in stereo
- Output transformer resistance
- Power tubes shorting...help, anyone?
- Wattage question
- Deluxe Reverb destined to hiss?
- Tube Idle Bias effect in Cathode & Fixed bias circuits?
- Anyone have any trouble with there Crate V series???
- Series or parallel, how do most cabs come?
- Sylvania 6L6GC vs GB
- UNBELIEVABLE! After playing since 68, i blew up my first amp!
- Plugs for amp face plate holes????
- Why Pursue Tube Drive and Then Use Pedals?
- Economical power filtering?
- 25 watt Greenback Speaker question...
- Celestion Alnico in a '64 Deluxe
- Can a THD hotplate cause your amp to blow a fuse?
- Mismatched power tubes??
- Odd tone problem, guitar sounds out of tune
- A good tubes book !
- "Bigger Iron" (tranny affect on tone)?