View Full Version : Tubes / Valves
- Calling UK builders Simple SE, Pre & Phono advice
- Stoked about new volume control for my Simple SE
- Tubes Down Under...
- To anyone using 808s
- Grounded power supply cord on a transformerless amp ?
- Documenting SimpleSE FRED Problem
- PP KT88 Mono blocks?
- Looking for 6.3V 1A ccs heater supply for dht
- testing for the ratios on old opt's
- Any Transformer Winders?
- Output trans plate load question 5687 vs 5965
- KT88 triode strapped question
- 6528/8080 Triode - NOS Only ???
- Opinions gratefully recieved.
- Wiring Power Transformer in Parallel
- Is there a best location for a volume control?
- bass guitar preamp
- P2P vs PCB
- Help on EL84 / ecc83 SE project -very low volume
- 4E27 Triode connection SPICE model
- 300B driving 845
- Breaking in your tubes?
- 6SN7 equivalents in B9A
- Figuring out how many watts I need
- How do I tell whether a different replacement output transformer will be ok?
- OPT linestage question
- 6AS7 preamp buffer
- Where to put the MV ?
- 5u4g input capacitor
- Chassis metal advantages/disadvantages?
- Experience please: Tung-Sol 6L6GC STR
- Transformer winding resistances
- Capacitor Voltage Rating Question
- Oh my where to begin!? PTP related question.
- tube bayonet pin gone.
- Attn: Glass_painter - Pioneer SM-83 Transformers Dissected
- Please help ID this DIY tube monoblocks
- Amp thinks it's a receiver ??
- Anyone remember heathkit s99?
- Blue Voodoo Solid State Rects to Tube Rects?
- Renovation of fifty years old tube amplifier
- Big Boss: a simple and basic el84 PP amp in progress
- Line Stage for Mikael SE KT88
- DIY tube guitar amp oscillating, please help!
- Philips EL3536
- Tube Tester's
- Counterpoint SA-5000 P.S.U part identification needed
- 6GU7 in an Aikido?
- suggest about 9002/vt202 preamp please
- 7591a Alternatives
- tube rectifier plug in s-s replacement
- Oscillation in tube amps
- simple se cathode resistor question
- 6GT5 audio amp?
- How can a resistor "sound" good?
- Pin numbering, viewed from bottom or top?
- The Hybrid Class A amplifier
- 485V Regulated Power Supply
- 0B3 Glows Orange
- New Reissue tubes...Good/Bad???
- PP amp design , your thoughts please.
- Aikido + Phono section preamp
- Newcomb el84 amp
- Any Australians want to share shipping for valves from ESRC?
- 5718 Nuvistor ?
- Trimmer pot source?
- Pentode Miller Capacitance, and which spec value to use?
- Brother can you spare a preamp design?
- Reducing tremolo beating
- Russian tube equivelants
- Another question about russian tubes
- Why match tubes?
- My XPP OTL Headphoneamp
- Joining the Tubelab SE club
- Simple heater question
- Fender always taking care of tubes....
- Need small SET transformer (12B4)
- Red Hot 6L6GC
- How do these curves look?
- Why does lowering screen voltage reduce headroom?
- Class A2 Direct MOSFET Coupled SE
- Volume Surges Fender "The Twin" - transformer going?
- simple SE questions
- Best tubes for ~100w 1.9k p-p?
- Installing bleeding resistors
- Capacitor Comparison Conundrum
- Tubelab SE socket raise
- RH84 finish!
- cathode biasing question
- Modding an old tube amp???
- More snake oil
- simple se success!
- Rectifier swap out?
- Input impedance of tubelab simple se
- Capacitor tolerance
- Please comment my F2a SE schematic
- E80CC aikido
- Heater wiring help!
- Differential output stage: cap voltage?
- 6C41C in a PSU regulator?
- Filament Wiring - Shielded vs. Twisted?
- Transformer reflected impedance games? Overspec'd output power?
- SE 6V6 cathode resistor value
- Very strange gremlins in my phono PS
- which kit to build - first kit ever
- Does anyone know the plate reistance of a 6CW7/ECC84
- Shindo Claret
- se, srpp, pcb design criteria
- Looks like a promising SE build ??
- Apologies to Alex Kitic- RH84 Three Channel?
- 6L6 AB1 Push-Pull
- Jadis JA-30
- Black Gate "snubbing"
- New Schematic - PP UL 6V6-types, CCS-fed
- build up a new line amp
- How do you make a DHT amp REALLY HUM FREE????
- Experience with AnTek OPTs?
- 6V6 PP AB1 circuit
- Help with powering down a trafo
- Computer program for tube curves and Spice models
- Some help/advice with a guitar amp layout.
- Physical orientation of transformers
- Which EL34 tubes for Hi Fi
- Choke input power supply, capacitor ratings
- EL36/6CM5 SE design critique
- New 6F6 Amplifier Project
- Transformerless Tube Amp
- GE sealants: which to use?
- Bias supply and grid current
- US Army Russian Electronics Dictionary
- Speaker Pop!
- Steve Bench RIAA preamp users
- MAC free schematic drawing software?
- Using James JS-6123HS with EL84 SE is overkilled?
- Volume pot for simple se
- s5electronics 16ls schematic
- New to valve amps - given a 'project'
- Are there any loctal PC sockets?
- cheap and easy tube preamp
- Stereo bass problem
- SRS-360 East German transmitting tubes
- What the heck does a getter do ?
- Capacitor polarization help!
- MasterSound Tube Amplifier
- PC900 / EC900 curves
- 2x 12AX7 preamp fuse value
- Crackling Noise in Tube Amp (only) & PC Sound Card
- The Mullard 3-3
- Audio Research D125 Schematic?
- Glass B1. Need advise
- Eagle Library for OPT?
- Computing or measuring anode curves w/ CFB
- Northlake PT ??
- Greatest circuit ever (or weirdest)
- Advise for nervous EL84 user
- K-12G problems
- Changing AC heaters to DC
- Phase change when adding gain stage?
- XiangSheng Amplifier
- Grid stopper resistor for 12B4A?
- Lundahl LL1620 SE-OPT : Ultra linear ?
- Thordarson transformers
- Ampeg SVT cloners, chime in!
- Electra Print & SAC ( Silk )?
- Audio Transformer articles I would like copies of !
- K-12 with headphones?
- cap wire lead covers
- Single ended amp, EL34, KT88 ideas??
- Kt-66 and Simple SE
- Wavebourn Pyramid - VII driver stage
- Mysterious OPT winding tap
- DHT…. Get rid of the Hum Pot!
- Operating Amp Without Load
- Tube choices for Simple SE?
- Looking for information on old thread
- Tube Leveling Amplifier
- Anyone with knowledge of the 12b4?
- 7695...useful audio tube??
- simple se blowing rectifier and fuse
- PSUD - How do interpret the results?
- Solder station
- TubeLab SE blowing fuse on B+ ramp up
- preamp for pl504 amp
- Resistor after volume pot
- 6021 Amp project..looking for some input
- 807 SE project started....
- Fun with glow tubes, a success story
- OPT question
- Sources for Replacement Fender Filter Caps
- Cheap and easy vacuum impregnation
- How to measure mains waveform safely?
- Wanted - High Power, High Voltage, Audio Frequency Transformer Manual.
- Aikido Resistor Help
- Changing 6SQ7 to 6SL7 in SE amp
- Multi-tap OT
- harmon kardon a700 amp output trafo impedance
- An SE 813 OPT?? SP. Wound??who zat?
- Tube rectifier to diode
- The Trioderizer
- increasing coupling capacitor value in we 91
- diy SE Tube Amp
- Max power possible from 6L6 with 6.6k load?
- OPT grounding question
- Tubelab sse transformer wires
- SE sound vs Ultra Linear sound
- Modify & build out (2) Western Electric 300B / 2A3 Hammond monoblock amps & UTC LS-5
- 6N6P or E182cc spice
- Ecl82
- Zeiss Ikon Dominar L Amplifier
- Beginners attempt at SE 6EM7
- Changing 300B Tubelab SE to accomidate 50 triodes
- Subbing a 5751 with a 5755
- HELP repair a Yamaha T100C combo
- Sophia Electric 300B tube
- Screen drive and other P-P experiments
- Amplifier using a 833A
- Circuit help
- How much mis-match can an OT take?
- SE load mismatch, 8 or 6 or 4 ohms?
- Magnavox 196-BA => RH 84 conversion
- Capacitor voltage ratings
- 40W class A push pull amp with JJ 2A3-40w possible?
- "Designing tube preamplifier" article
- Valve Tester Guru Help
- 6GB5 and Variants as Screen Driven Amps
- Gyrator Question
- Suggestion Please - Curcuit Simulation & PCB Design Software
- Starting to understand.....
- Aureavox Arcana 81
- Impedance question
- spare transformer wires?
- Capacitors and maximum voltage ratings
- Do Sweep tubes Glow Blue?
- Any way to upgrade this circuit? (V. 40's phono amp.)
- About tube "matched pairs"
- Testing Gm without tube tester
- Best place to get Shuguang 300B tubes
- Old metal tubes
- LTSpice Simulation template?!
- 300B pushpull- A new schematic
- Drake transformer
- TL Audio VP-5051 Valve voice processor
- Vtl 750
- DC-coupling of tube stages
- ThermalTrak transistor application.
- weird old amp:need help
- Triode Electronics Mark III
- Scavenging a broken oscilloscope to turn it into a preamp ?
- Silmic caps in cathode bias. Any experience?
- Scott LK150 transformer