- e283cc better sounding than?
- Porchlight Scratchbuild
- No output and Loud squeals! Help!
- Low mu triode for phase splitter
- Help figuring which is the center tap???
- Help with Paco SA-40
- Best tube/sonics
- One Half 12AU7
- 1939 Novachord - 163 Tube Monster!!
- Gyrators to replace PSU chokes?
- Output trannies for 6as7
- 2 Toroids = 1 Isolation Transformer?
- Finding Transformer Building Supplies
- Sagging Heaters
- Kofi Annan in: "Kofi's Baby Huey"
- Point to point wiring help
- help !! PTT2s Line stage
- Rickard Berglund, Sweden
- "The Sussex Homebrew Valve Tester"
- clipping
- Wanted: a couple of UNF bolts
- H-Bridge Amp Design
- need help with yaqin mc10l
- Watt the?
- DIY tube preamp with 5687
- Help with tube stereo build
- Tube recommendation for speakers
- Bogen mx60a Schematic
- Eliminating volume pot?
- CXPP100-MS-3.3K or CXPP100-MS-4.2K
- tube power supply voltage
- Driver Bypass Cap - Value?
- Tube bases and plate caps rant
- tube dual regulated psu needs amp
- Help me choose output transformers
- 12GT5-guitar amp.
- Verdier dual regulated tube psu
- Aikido Phono Amp Output Tubes 12AU7 and 12AX7?
- Mullard EL84 ID
- schematic request for transformer with 4k primary and UL taps
- Plate-Grid feedback: How to get better than DHT performance from cheaper tubes
- Anyone going to the Dayton Hamfest?
- More class D madness
- the SuperHybrid
- Tecon Model "55" final mods(?)
- Hammond P-T125E OPT
- Highbred Amp "TUMOS" Sounds good?
- 300B SET which chassis design
- Help with creating a simple tube HV regulated supply
- Tube Sockets for oddball miniatures
- McGohan M506 PA Guitar conversion mods.
- Bogen chb35a
- My last el84 PP tube amplifier
- Ultrapath - Advantages?
- Phono preamp with c/em2
- 12AY7 plate current
- OPT identification
- Resistor values at supply to anodes
- Typical output impedance for tube amps
- Problems with EM87 stereo level indicator for computer line out
- VR tube recommendation
- Mills MRA-5 resistors in tube circuits
- B&K Dyna-Quik 500 shows good tubes as Shorted
- Output transformers
- dbx 386 upgrade
- Sub 6n6p for 6n1p?
- SET Amp History in Japan
- Grid Bias or Cathode Bias
- Oscillating CJ PV-5
- FireFly Single Ended Tetrode
- Aikido front end for a SE 6C33S
- Ground Plane vs Star earth
- Circuit board with long post??
- ecc804 as Phase Splitter
- What can you do with a 3a5?
- Auto Wave soldering sockets
- Using diode for biasing
- No bass in 300b amp
- Tube socket and pin cleaning
- Help With Left Channel Hum
- Volume pot has rustling sound
- How best to distribute heater windings
- 30MB6 data
- Kofi Annan in: "Pushed and Pulled Back!"
- How dangerous is it to build an SET?
- 6as7 SE OTL
- Melody Roll
- 8417 Output Transformer
- Do you still need matched tubes if running a CCS ?
- Is a LM335 a direct replacement for a LM317T?
- Bias worry
- About the tube 6463
- awesome RCA MI 12158 tube amp project
- Crazy idea: Output tranny with constant magnetic gap?
- Most linear triode-strapped pentode
- Aikidio Phono Amp Questions
- Sample and Hold
- Big push-pull power for dummies
- Foxtrot Guitar Amp - Output transformer
- Taking my KT88 SE E-linear amp to the next level (long)
- Aikido Janus Shunt PSU
- 12b4a phase splitter! The best?
- Sansui 500EA vs. 500A
- Cascoded Ring of Two for Plate Load
- 6SL7 distortion
- My new PL36 Push-Pull amp
- adding line out to guitar tube preamp
- Thyratrons
- Tube ampl. for repair
- Date codes
- China Sountrack KT88 need shematic
- Anyone know anything about the Luxman A-2003 tube xover?
- Dynamic negative feedback?
- Need help with Ampeg J-20 crackling buzzing hissing noise issue/blocking distortion?
- New bie: some questions, want to start DIY pre amp
- Power Transformer issue
- Guess That Tube
- Poor soundstage with SET 300B
- Dedicated ESL amp -- please comment
- Buzzing AC relay coil
- Stereo amp parallel wired to mono - possible?
- Need biasing advice, cathode biased amp.
- Before I go ahead and build this...
- Beginner Tube Stereo
- 6AU6 and 6J5 for Guitar amp or pedal?
- Morgan Jones and the ECC88/6922/6DJ8
- Help with matching speaker impedance to old tube amp
- srpp 2a3 power supply
- 12AX7 Tube Question
- New problem with Music Angel KT88
- Need help changing 12V heater to 6V
- Phono cathode follower challenge!!
- 6au6 for stereo?
- determining input/output impedance
- "Singing" output transformers
- Sustitute 5842 for EC86
- Vege-toobz ;)
- precision electronics inc. tube guitar amplifier
- Bad channel in RCA Victor Console
- Did tone bypass on PAS what about caps
- Pe06/40n
- Anyone own an HH Scott LK-72 Integrated amp?
- HELP!! Howling K12G!!
- McIntosh MC60 Bias question
- Connecting a MF tube buffer directly to AKM DAC
- How to evaluate RF tubes for power and fidelity?
- Amity Amp Nutshell Audio
- 8086 Tubes?
- Lil' Devil P-P Amp
- 6SN7 vs. 6SL7 in Darling amp
- EL84 and 6V6 in parallel???
- BBC AM8/6 mono tube amp schematic
- ST70 works with PAS but not another preamp
- Freds in 6X5 psu?
- Hi-End 50W Push-Amplifier inspired to AudioResearch
- Audioromy fu-29 - push pull!
- Help - MS-6V6 Yaqin schematic
- High Voltage Direct Drive amplifier for Plasma loudspeaker
- A Direct-Coupled Amplifier with Cathode Follower 6V6
- Separo- Full Pictorial Disclosure- opinions please
- Hammond Integrated Amp Kits 1950s
- LW6-180 schematic
- What to look for in a tube preamp?
- Russian-English Translation of 4P1L datasheet
- Can anybody identify this
- New York Audio Labs (NYAL) OTL1
- 5F6A via Mechanical Design
- New to tubes, need your advice.
- Brook 12a clone
- What type of audio transformers to use for tubes / valves
- need advice about building tube xover as a piece of art
- My first amp project, 6BQ5 (EL84) Single-End
- MA 6P1 6AQ5 Push-Pull Valve Tube Integrated Amplifier
- Stupid AB bias question
- Jamoke Direct to LPT/CCS PP EL34
- 4 x EL84 (6BQ5) in Push-Pull - Power Supply
- RFC: 300B driven by anode follower (6J5/6SN7)
- AVO VCM163 oddity
- Shuguang SG-50 ( RCA UX-250 replica) comments ???
- Schematic question (Trainwreck)
- Novel mode of lithium battery bias
- power supply problem in my dream amp...
- Understanding how to wire up an Output Transformer
- Tube sound without the tube! (almost)
- Replace Bypass Cap?
- Sales On Sound Vintage 40s Tube Amp Info
- Why am I blowing fuses when connecting to next component?
- New owner to an old Heathkit AA-121
- New amp just finished 6080 pp opt
- Aikido as DAC I/V?
- Have two 572B-162L USA mfg tubes for trade
- Potentiometer question
- DHT circuit development for noob:)
- modifying a schematic
- TV-4a/u Weston USM Tube Tester: got a manual or schematic?
- Any idea what the primary impedance of the X101-B OPT is?
- Transformer Ratings
- noisy Gain knob
- overcooling question
- Ecl82 PP amp rebuild - suggestions?
- GU-50 PP amp project - Any favs?
- External DC power supply?
- shielded wire
- Noise & attenuation
- Thinking of building the SV300B Push-Pull
- Transformers for Push-Pull sweep tubes
- 12BG3's
- Valve audio circuit design questions.
- jcm 800 preamp?
- srpp & distortion
- Common cathode circuit values
- Resilient Mounts - Materials Science help please
- Raytheon 6G-B6 information
- Output transformers
- Filament winding wire diameter
- EL34 for ST70
- Building a Tube PreAmp for Teddy
- series capacitor values..
- Music Angel KT88 correct circuit
- G1=G2/mu Scaled Drive Strawman Design
- Output transformer for 845 SE triode amp
- "10 year burn in" T Shirt arrives!!!
- Thinking out loud -- VT-33 headphone amp?
- Elektor USB magic eye
- Maganavox Tubes Made in USA?
- Magic Eye VU Meter
- More EBAY Madness !!
- Major modifications of a Bogen AP-35
- Help with circuitmaker Pentode model
- Kt-120 ?
- Help with 6F5/6L6 rebuild...
- What Speaker for Webcor Tube Amp?
- Possible use for Pentagrid tubes??
- Rogers Cadet III integrated
- Quad II - Can 6P3S-E/GU50 be used as KT66 direct replacement?
- Using Grid2 screen signal -
- 6n6p tube as output tube for small guitar amp
- YAAGLI - Yet Another Aikido Ground Loop Issue
- Tube rectifier question.
- Dac with tube preamp?
- 5712 tube data needed
- 180 pF capacitor and other questions
- Simple question: Stereo to monos. How.
- Plate dissipation specs for 21KQ6
- Yaqin pre-out for subwoofer?
- Grid Chokes and choke load
- First tube amp project: GO!
- Hybrid Amp
- Circuit weirdness?
- How suitable is this tranformer for a Tube Amp Project?