- Edcor OPT's w/ SimpleSE
- Please check this PSU
- met. MKP in oil capacitors for PSU?
- EH EL34's at +600V?
- The Infamous Kay 703C! - Help finding an output transformer?
- MOT's as output transformers?
- Grain oriented silicon steel core data needed
- Gibson reverb driver transformer
- PSUD II help
- Edcor In SE Guitar Amp
- Tube curves
- S-5 electronics amp kits
- up-to-date El Cheapo schematic
- unknown output trannie
- Help needed with KT88 Amp design
- Bogen MX60a
- AIKIDO - Low-volage with buffer version
- 6N6P cascode calculation
- 866a Min operating voltages
- new 6V6 amp
- Tube-based CCS- 0.2uF cap OK?
- DHT filament PSU: What would you do?
- PSU problem
- 811A se amp using a solid state driver
- ECC83 - Long Plate vs Short Plate
- Tube Matching
- Cascoded mu-follower
- DIY speaker choice for SE
- Output transformer wanted
- big valve traffo for guitar amp?
- Tube Tester
- 835 amp
- One 300B filament supply for stereo?
- Aikido Built At Last!!
- Question about amount of feedback to apply
- design help needed.
- LED in cathode
- Need help for Eico 1030 regulated power supply
- zinc chassis
- Anode Cap Question
- what pins to use solid rectifier for 5Y3
- New PSU for Aikido?
- tube anti-vibration mounting
- Border Patrol PSU, can anyone help?
- Aikido Line Stage
- LED Bias Modifications
- danelectro vibravox
- Standby switch for bridge rectified power supplies.
- Decoupling in Phono stages.
- easy one valve pre help
- Single-ended-series amp with a "1 winding" transformer
- Complementary Symmetry Output
- Help getting these d$&* Dynascan probes apart!
- Aikido output cap selector switch
- adding an "on" lamp to amp kit
- Why does 6BM8 have so high max plate voltage?
- B+ soft start
- Unison research
- photos of my creations
- First Time Project - Finished! Photos Attached
- Design parameters for SE OPTs'
- want to build a pentode driven drd 2a3!
- Passive Magnetic Preamp!
- Testing an E288CC (8223)
- Need expert help on presence control
- Value of output caps for Aikido - how low is too low?
- Very expensive WE106A pre-amp, any member had this??
- B+ with or without tubes?
- 1st Time Project - Spot the howler
- Tube flashes on tester... Bad ?
- Amp advice needed for a poor DIY er...
- DCR of primaries and secondaries of Hammond Transformer
- 801 amp with Power Drive
- Where did this come from?
- 6N7S's PPP Class A
- your opinion needed.......
- ST-70 strangeness
- SS preamp w/ tube amp
- pri. impedance vs. sek. impedance
- TubeLab SimpleSe and speaker efficiency
- Question about speaker transformer
- How to read Russian Date Codes
- 300B Amp on ebay
- Would a 396A or 2C51 drive a 45?
- PSUD2 Q on regulator
- My last design
- Silvertone 1481 power transformer?
- OPT for 250th Se A2
- 829B, 3E29, QQV03-20 Connector
- Measuring from UK schematic but on US mains
- strange tube
- cathode resistor ?? in p-p fixed bias
- Need Help please . Headphones into line up of tube amp .
- 5Z4 inrush current too high
- Reducing gain on Audible Illusions M3A
- Decoding output transformers: strange SE's
- cheap and usable for 1K p-p iron?
- Help! Phono stage LF instability
- Help! Mesa Stiletto is motorboating and then fuse blows
- Faulty tube?
- Philbrick opamp bases
- Hammond Driver transformers
- 6n7/2a3
- Flea power for cheap OPT's?
- 1st Project - Half time report
- Claus Byrith 4-30 Questions
- quicksilver 8417 biasing
- 6sl7
- Trying to identify/find documentation on a 50EH5 amp
- Basic tests and measurements for OPTs
- 6SN7GT SRSE Linestage
- Dynaco Mark III
- Push Pull 300B preliminary
- triode thermodynamic model
- My first post!
- A Neophyte's 12B4 Build Thread
- Webster Hammond Model "G" amplifier
- Matching tubes- WE 396a/RFT EL34
- What is the most powerful AF tube amp ever built?
- SOHA Amp & PSU Layout, need feedback
- smoke came from transformer
- Startup Cost?
- Old or new output transformer?
- speaker magnet proximity Question
- Russian L3-3 tube tester
- I made a web page on building triode models /w CurveCaptor
- Boosted Triode mode?
- Unbalacing a PP output transformer?
- ecl86 & ez80 - suitable for guitar amp?
- Double C Cores
- Aikido Power Supply
- Output Noise question
- Power Supply Ringing
- Compare Sowter SA08 with Plitron 3035SE for 300B
- My 6C33C SING WITH No SPEAKER !
- MOSFET Driver for Power Pentodes
- Floating heater supplies
- Altec Amplifiers
- What causes the overrun bias on V4?
- sound comparison of Class A1 vs A2 amps
- 12AU7 substituted for a 6922
- Whats the worst that could happen?
- Ferranti transformers
- PC Cooling Fans for Tube Amps
- 845 circuit suggestions
- DIY Sofia tube tester?
- transformer hum / buzz getting into B+?
- Safe Transformerless Amps Possible?
- GM70 Lower Voltage PP Question
- phonostage with 150VDC B+
- Spuddo more powerfull
- Larry Moore 300B/10Y/6SN7GT
- Foreplay Preamp volume popping
- Altec Tube Amplifiers
- Circuit review
- DIY Tube Tester for 6336s
- 12dw7 to 12ax7 conversion?
- 26 preamp
- Etf07
- 1st Project Heater Wiring
- Dropped tube
- Great bench supply for tube work.
- Mullard px25 - need matched pair
- 2W carbon composit ressy
- popping noise through 1 channel on Radford STA15
- Point to point wiring help
- 1st Time Project - Report 2 + advice sought
- "Simple" 2A3
- vinyl v cd differences - phono pre and cd-player
- Shielded input cable
- knight guitar amp conversion
- Dumb motor run capacitor question
- Coupling caps in ST35
- Mentmore M100
- How to match tubes?
- Transcendent OTL T8 Vs. Atma-Sphere M60
- New 12AX7A Pspice model
- What does R2D2, Mickey Mouse and a...
- Why 5V filament
- Alloys for filaments
- 6360 as Power Tube for SE amp
- Bridging Stereo Amps
- Problem with 6L6 Monoblock
- Gain
- Proper grounding method...
- Changing a tube amp...
- Houston Mini 2004 Pot question
- Diode Heatsink
- Looking for a PCB / kit for a bipolar tube rectified PSU
- compactron output stage and power supply
- Better sounding ECL86's
- Heathkit EA-3 conversion to guitar amp
- interesting amp & interesting problem
- Hybrid Tube / Mosfet Amplifier
- Again (sorry) what's the biggest 6V heater double rectifier?
- PP EL34 circuit wanted
- Need advice for transformer for tube GM 70.
- Pentode filter
- How to calculate for cathode follower
- 6L6WXT in a Dynaco ST-70
- tube preamp using submini tube
- SE Trafo for PP use
- WE91A Pentode Questions?
- Lower voltage Dynaco ST35 for 6P14P // 7247 replacement
- looking for schematic; three EL84's in PSE ?
- Need work done on a dynaco power amp
- quick question on fixed bias
- DIY Tube Audio dealers in New Zealand
- ornec
- Tuner filament supply question
- An idea for a partial feedback pentode amp using 6AU6's and 807's
- Tube current regulation for series heaters' supply.
- Bogen PCA-1 two tube booster amp
- First time building a tube preamp
- B&K 700 problems?
- Silvertone 1482 Blowing Rectifier Tubes
- Voltage Multipliers
- Russian 6P14P tubes
- Where to get tube spec sheets, pinouts
- PCL 82 Hybrid 2SC5200/2SA1943
- CCS in Otput Tube Cathode - Does It Make Sense?
- My Guitar Tube Amp. Help needed with Mesa/Boogie pre
- My brew of the "Darling"
- Series connection of filaments
- noisy filament transformer
- Circuit diagram for Trilogy VTi.
- Got oddball tubes!
- A photo for my question
- Make a preamp with an already buil amplifier
- DN2540
- mods for almarro amp
- Filament Transformer
- Circuit indentification
- Simplest Tube Regulated PSU?
- High Voltage Insulator for Umbilical
- wiring diagram, instruction on the transformer S-265-Q
- help me get started
- 12AU7 instead of 6C4
- Fisher 600 questions
- Phase inverter
- srpp input stage
- Orientation of EL34 Tubes
- Load termination ?
- Advice on SE DHT for Lowther Fidelio DX2
- Dynacord MV46 as a compressor
- Biggest dual triode output tube?
- OPT impedance question
- Partridge SE O/P transformers
- SimpleSE and me
- SRPP decoupling cap vs. output transformer