- Can KT88's be used in my amp?
- JJ 6L6GCs... WTF?
- Please suggest KT88 tubes
- wurlitzer branded general electric grey plate 12ax7
- Power Tube Swap Extravaganza!
- need a source for 6KG6A/ EL509 tubes
- how long do these last?
- What is this tube ID?
- Avo valve tester questions.
- winged C vs Svetlana el34s?
- Mercury Rectifier Tubes
- boutique/back yard tube maker in Japan [Youtube]
- cathode by-pass in push pull six tube hifi amp
- Nuvistors - what do you think?
- Bias question - 6L6
- Adhesive for Repairing 6V6GT Base?
- 5763 Tetrode - what do you think?
- NOS Metal Can 6V6 Tube Quesiton
- Franks Electron Tube Data Sheets site down?
- Tube amps
- rf/audio screen voltage ratings
- Help with value vintage Line Transformer Altec 2282
- Suggest preamp tube (12AX7)
- Anyone used Sovtek 12ax7wa - Had one crack
- ID this Tube?
- what power amp is this and who made it ????need schmatic
- Recommendations for EL34 for 520V on the plate
- Anyone else having issues with Winged C EL34's?
- JJ 5Y3?
- Retrovalves
- Question For Other NOS Tube Junkies
- mismatched 6v6 pairs; cathode bias
- Article - Return of the Vacuum Tube
- Tube-Based Boiler Controller / Thermostat?
- Any experience with this tube vendor?
- Blackface Deluxe Reverb No bias current reading
- Fender Bassman 10 Bias adjust conversion
- Proper Tube Removal Process?
- dead output transformer
- Shuguang data sheets
- Ordered JJ's for my Bugera 333XL
- The Tube Shop - anyone shopped there?
- Which 12AX7 for my 18 watt plexi build ?
- 12AH7A info
- Changing tubes in a Crate vc5310
- Winged C 6L6GC + TubeDepot
- WANTED: 2 6N6 "metal can" vacuum tubes
- 50Watt Vintage tube PA Tubes?
- Northern Electric Tubes
- Fooprints (symbols) for tubes for Orcad PCB designer
- Sovtek 12AX7s
- Octal tubes and microphonics?
- Tube amplifier for headphones
- Any Opinions on Octal Preamp Tubes?
- Cryo treatment of metal things with music coming out of them
- JJ EL84 failure
- Anybody Know About Ballast Tubes?
- 21.5 watts from a Pair of EL84's?
- Strange 5AR4 "Problem"
- Is cathode bias the same thing as "self" bias?
- Rectifier tube question
- Who made the Groove Tube KT-66HP?
- Bugera 333XL 212 Combo Tube Questions
- Senior TC130 tube tester chart
- Difference between 5AR$ and 5Y3 as Tweed Deluxe rectifier
- What to do with one of a pair of matched tubes
- Most reliable current production 5AR4/GZ34?
- Please recommend me tubes for my Bassman
- Peavey classic 30
- EF86 too weak. is it true what they say?
- JJ 6L6GC
- Will changing from a 5U4GB to ? lower my DC voltages?
- New 6Sl7
- Best New Issue EL34
- Upgrading Epiphone Valve Junior to a 7591 SE design?
- 6Y6s.....any good for audio?
- My Handsome Devil head
- 6AR6WA v. 6L6GC?
- EF86-type Sonic Differences.....
- New Issue 6L6
- 12AX7 HUM
- 6U8/ECF82 shielding question
- 7581a in Fender amps?
- 12AY7 as a DC-coupled cathode follower
- Vox AC 100 Mk2
- Tung-Sol 6L6STR fragile bottle top
- ECF80 or ECF82 for AF?
- SED Winged C Prices Way Up
- Tube Lineage?
- 12ax7LP substitute
- Chinese tubes
- KT66 Pin 1 variations - which one is accurate?
- Tung-Sol RI 6V6 - opinions/experience?
- Presently manufactured power tubes
- Very elementary question/Sovtek etc.
- 807s?
- Miniwatt, yes or no?
- RCA - customers advice wanted
- Chinese and Russian tubes
- SS Tube replacements...
- Telefunken in Fender amps?
- 7868-EH tubes any good? (New Electro Harmonix)
- What are the best 6550/KT88 tubes for 2011?
- Gold Lions (English)____Anyone familiar?
- Bench-testing vintage power tubes?
- 6v6 and 6v6GT
- cleaning old dirty tubes?
- Tube labeling: Paint? Etched?
- help plz: identifying old tubes
- Baldwin 12AX7 Made in USA AMY 31 13 29
- tube test just for 12Ax7?
- Sovtek 5Y3GT--good tube?
- Are you kidding me!? Really!?
- 6SQ7 vs. 6SF5
- Anybody have a legible TC-142 schematic?
- Woolly guitar sound
- 12AX7 Mullard/Philips/Amperex NOS
- New JJ 5U4GB whines on warm up.
- 7591 vs 6V6
- Help me identify some 12ax7 tubes, please?
- What does it take to break a tube pin?
- EZ81, 6CA4, EL84 Question.
- Russian 6P3S
- 7868 tube
- Screens Still weak in EH6V6?
- ken-rad 6l6g and 6v6gc from 1948?
- Groove Tubes Marshall distortion Confusion!! lol.
- New 12AY7 vs 5751, can't hear the difference...!
- B&K 707 Tube Tester - Problem with emmissions test
- 6550,6L6,12AX7 and distortion question
- Tube question
- Any reason I shouldn't...
- Teonex
- Eurotubes=Bad News
- Svetlana factory seconds
- Free tube datasheets
- RCA 6L6's ?
- "Soot" Inside EL84/6BQ5
- JCM800 Preamp Clone - Wierd Distortion (oscilloscope pic)
- "Shield" brand 6BQ5 Torched Screen Resistors
- Preamp tubes
- Jan Philips 6L6WGB
- Mesa Boogie tubes
- R.I.P. CV4004.....Any tube sob stories?
- 5Y3 EZ81?
- Tube Slag
- my NOS 5y3 is not working. bad tube?
- Old Hammond Tubes??
- Cabs suited for Vox AC50
- legacy vl100
- I need Help with this tube "8CW5/XL86
- Amp should be 100 watts but low on power, why?
- 6sl7/12sl7 experimentation ?s'
- Question about Tube Output Power
- I have some general Q's about tubes!
- Question about tube glow.
- Hiwatt hi-gain 50 head biasing review
- Do different make 12AX7 tubes sound different? and why?
- 12at7 labeled as 12ax7
- Good Sounding Tubes
- New Tubes and disaster
- ECC 807 Brimar
- In at the deep end....
- Hiwatt hi-gain 50 head
- 6Y6GT in a Champ ?
- Bias probe
- No Sound on Fender Twin Pro All tube
- hammond tubes question
- Crate blue voodoo 60 watt 2-12 combo problems need advise
- Ampeg V4, maximizing headroom, needing real answers...
- Yellow Jacket Power Tube Adapter
- Hammond 7247
- The difference a tube can make
- What to do
- Laney AOR
- Tube Tests and Specs
- Duende Criatura?
- A Good New 12AY7?
- Fender Twin Preamp Question.
- Ampeg VL-503 not working tube arent glowing
- Ampeg SVT pro 3
- ECF80 / 6bl8 New ( not NOS ) ???
- 5881 question
- Useful Valve Test Reports
- Help identify a National Electronics 6l6 tube
- Tubes
- Phase Inverter tube capability
- Mesa boogie recto preamp tube placement values
- 12b4a ge jan
- 5AS4A acceptable Sub For 5U4G ?
- What NEW 12AX7 is BEST
- Anyone have info on A rcp 808aa tubetester?
- Variable cathode resistor
- The original chinese 12AX7's
- Making a solid state rectifier
- Tube amp death (auto bias-trouble)
- 12ax7 trouble
- Boy, do I HATE this (new tube rant)!
- Changing tubes on a Gibson Goldtone Ga-15
- 5u4 rattles on powerup
- NOS Russian 6Pi6c Beam Tetrodes
- Hammond-labeled tubes - mfr?
- JJ 6V6s sturdiness
- KT66 questions
- Changing Vibroluxe Reverb Custom tubes
- 6v6, 6f6
- What do these tubes do and can I use them in a THD amp?
- dsl 100 bias problem
- 12AX7 testing
- Kt100
- Just curious...
- What can folks tell me about 6EJ7 ?
- Making a quad out of 2 matched pairs
- Transconductance and tube performance
- Anyone ever try 6CW5s?
- 6G6G power tubes in a 5F2A ??
- Help with a tube substitution
- TV Tubes
- Wanted - High Power, High Voltage, Audio Frequency Transformer Manual
- Tube testing question
- Tube rectifier wear
- I am new to tubes and have been looking for help!
- Noisy power tubes
- Tube identification: manufacturer logo/markings database?
- Yay I got a Telefunken ECC83 for $10
- How much light in Power Tubes?
- 5Y4GA Rectifier
- Soft/Med/Hard Duet...
- 6V6 Tubes in a Fender Blues Deluxe Reissue?
- 6P6S - Any one used these?
- Non-Reissue Tung Sol 5881/6L6WGB, RCA Blackplate 6l6gc Unmatched Pair
- An experiment for gassy tubes
- 6gw8 replacement?
- What brand is this?
- 7868 Power Tubes?
- 1950s Genuine RCA Radio Tubes and Parts
- Tube Education for Blues Deluxe
- solid state
- 6CA7
- '65 Fender Princeton - Tube Suggestions?
- Blues Jr. 1 Hot tube
- temporary intense glow/dull flash on filament when heaters are turned on
- 12AX7 Voltage Problem(s)
- Poor little 8CG7
- Last word on Sovtek 5881 plate voltages, pleeeeeease.
- Using large value screen resistors w/ bypass caps
- 5cg8 triode/pentode amp ?
- 6SJ7
- New Tung-sol 6v6gt voltage
- Tube Rattle