- Metal Can 6CA7s
- Bypassing B+ in PP amp
- Tube shunt regulator for phono amp
- Triplett tube tester help
- Motor run Caps Question
- speaker that can be driven by tube amp
- Which perf board?
- Looking for schematic/info for a Knight KN 3050 PA Amp
- Need help with volume control.
- Flame triodes!
- make OPT
- Tube GU50 made in Russia
- Expectations of new tube specs
- DC on preamp input
- We're up and going!
- Putting serial number on tubes
- Which of these tubes is best?
- Stepped attenuator resistor calculation software
- Help with PSU for tube DAC output stage
- single-tube (6GN8) amplifier?
- Dukane schematic needed
- Bloody pinouts!
- Testing 5651WA on the bench
- phase splitter concerns ?
- phono pre RIAA 2001
- Quick output transformer wiring question
- Can I.....
- Cathode FB P.P. Strange behaviour.
- Historic Valve Assembly Vids Mullard Content
- Unknown output impedance
- Any matching in 12AT7 sections? (SimpleSE)
- Over-voltage on heaters...
- Stray capacitance of CCS
- CCS Design for DHT Filaments
- coupling cap value help for tubelabSE
- YAQIN MC-10L to Klipsch B-3 Speakers
- Sonic effects of tubes
- Gubin Valve Stereo Amplifier Question
- 6J5 Shootout - which one's best?
- Chinese Tube Amps?
- 26 DHT users please comment on what you built & use.
- Guitar amp project report
- auricap Vs musicap (Another Cap Question)
- Help with splitter design for 7591 PP
- Question regarding PS ripple in guitar amps - TubeLab?
- Tron Seven
- blue glow on one channel
- Suitable Power Trans for 6gw8/6bm8/el84
- Dynaco Pas 3 Hiss from HV regulator
- PS Problem: How do I Reduce Voltage?
- Got the build itch again. 80w kt88
- lm317 CCS question
- LM334z
- Parafeeding a Tetrode
- Differential stage biasing choice
- Got an overshoot problem.
- Help! What could possibly be wrong?
- Noise - 6J5 - 71a -300B amp
- crude, simple and powerful PP-amplifier
- What's the appeal of type 80 rectifiers?
- Guitar amp layout second thoughts
- 6N7 PP amplifier
- 300 KW tube audio amplifire-modulator
- Weird amp on ebay
- which type of rubber cushion under transformers?
- 12at7 LTP CCS
- Which value of a potentiometer
- Strange circuit - heater hum opt feedback?
- Aikido question
- Tubelab SE diode substitute
- Copland CTA-402 Phono Section Comments
- modified sine wave power inverter
- Rebiasing my DSL-100
- My EL84 SE
- K-16LS kit Assembled and Working
- Claus Byrith 30W PP
- Aikido pre and class T amplifier ...for a newby
- Best replacement for Black Gate WKZ?
- DIY Jukebox!!
- Partial feedback confusion
- Anyone used the 7C7 loktal pentode?
- Is vacuumtubes.net still in business?
- Rectifier Tubes
- music angel kt88 tube amp schmetic needed
- Next project suggestions
- Unpotted Peerless 16309 OPT from Heath W5m
- 6au6 Cf
- Direct-Coupling Question
- Help on CCS PP differential driver stage for SE 845 amp
- I'm Looking for this Similar Schematic !
- ECL86 preamp critique please
- Low cost 6AV5 design questions (long)
- Got my tube spice models, and tubed CD player page back on the air
- Vsac 2008?
- How hot do Hammond chokes get?
- Transformer current question
- TubelabSE - best MOSFET choice?
- WTD: Reviewer/Writer For DIY Articles
- photomultiplier tube - what is this???
- Trace Elliot Tube replacment
- fun idea: cameras and tubes!
- Quicksilver
- EI-75 End Bells
- Svetlana vs. Winged C
- Tube Amp Links
- McMartin MA-20 mods
- Power-tube grid-leak bias
- Best/favorite CF NOS noval twin triode?
- How can I calculate voltage over cathode resistor?
- Grid bias with Class A SE ?
- QUADII with DHT
- My First Tube Amp
- RH84 vs Magnavox SE?
- Rectifier and amp heaters on one supply?
- OPT impedance vs. speaker
- Power Supply help
- Problem with Stealth clone (12A6)
- phono stage hiss
- Lafayette LT-100 and 6AQ8 tubes
- Input potentiometer selection
- VSAC 2008 Amp Class
- Searching for simple 12bh7/E80cc pre schematic
- filament AC vs DC
- Novice PS Question: Diode Dilemma
- Custom Power Transformer Supplier UK ?
- lowering AC heater voltage help?
- 60 hz hum, what causes those?
- Problem with my ST70 build
- S-5 16LS tube amp use with 8 ohm speakers
- Yaqin 300b
- I'm going in.....
- noisy rectifier tube
- Quad II Output transformer rewinding question
- screen-drive (g2 driven) plate curves spacing linear!
- Strange feedback method
- Trio W-45a Amp-
- Hammond Power Transformer Buzz...
- 6v6 push pull guitar amp schematic sought
- Tube DI Help, Please: Substitutions
- Harmon Kardon Galaxy BA-150
- Velleman K8010 monoblock tube amplifiers
- First Project Finished-Tubelab Simple SE
- My 6S19P Linestage
- EL34 recommendations
- Edcor CXPP100-MS-5K- anyone used this (or similar 100W) output transformer?
- Bypass 2x0B3 tube cap value ?
- EF80 vs EF86
- Decware MODEL SE84C-DIY
- ST35 voltages WAY too high!
- How Do "Heat Fins" Work In a Vacuum?
- Acrosound Ultra-Linear OT catalog
- Simple Questions: Diodes and Heaters
- Recommend an input stage triode please
- Copper patinization?
- V-m 560a
- Anybody dealt with high-endstore.com?
- Diodes On Rectifier Question
- Stray hum pickup *preamp* cathode R-bias vs. battery bias & 12AU7vs.5687
- looking for a website...
- Simple 45/2A3 schematic error?
- Plate load for push-pull
- Hybrid regulator
- Hybrid Graetz Bridge
- JCM 900 100 Watt Power Trans Specs..
- My first amplifier - 6n3c-E
- Power supply problem
- Grid choke as I/V?
- Hammond PR20
- 6JN6 screen-drive (g2 driven) plate curves?
- Another compactron PP output
- 6922 transformer coupled
- Beam Deflection Tube Limiter
- 6LW6 bias points
- Dynaco SCA-35 or Sherwood S5000 iV
- SE 6550 class project (continued)
- gibson amp lp JR
- EL821 / 6CH6 triode curves?
- Ground wire adds hum to Harmony H-400A AC/DC amp
- "magic" phase splitter for SimpleP-P
- Harmon Kardon tube amp kit testing
- Did I hurt this capacitor?
- (newb) Why no white (-) leads on power trafo
- Ruined transformer?
- My Tabor Clone is finished.
- first build 6em7 and it works
- Cleaning up baked enamel/painted finishes
- panel meters
- Highs roll off
- scratch build EAR834p
- Silvertone Organ Amp
- El156se
- One more hybrid idea
- Can Anyone figure this?
- "Mighty Mite" Single Ended Amplifier
- old question - lost answer 6AS7 SE amp
- My KT88 SE project
- Motorola OPT
- Weird Input transformer hum.
- cascode vs asymmetrical cathode coupled
- music angel 845 SET
- Help! My amp stopped singing...
- LTP CCS IXYS with 10m45s opinions
- Boozhound Choke Tail Pair for HiFi
- Bass guitar amp...
- 5718 subminiture tube?
- fixed bias for push pull tube amps
- EC86 and phono
- Power Transformer mystery lead....
- Bias measurements 6L6
- 0A3 Light
- Equivalent to Tango NC-10 IT
- Ammeter wiring?
- Highest Practical Primary Z in OPT?
- Ampex 6v6 PP Modifications
- Variability of RIAA eq with tube characteristics?
- 807/350B/6L6 PP amps PSU ?
- Need Help For Tube Amp
- ECC83 300B Loftin White amp
- Hashimoto and the wonderful 45
- Capacitor identification–old PIO?
- Heathkit variac
- E80L pentode mode as driver?
- Transformer repair
- How many ga for chassis wire?
- 807 Guitar Amplifier
- I want to MOD - help?
- What About Beam Deflection Tubes?
- Capacitor
- Placement of Ultralinear Tap On Homemade Transformer
- Differential stage with CCS in cathode
- Directly heated Cathode/insulation question
- "Dirt Cheap SE" 6BM8 spud amp
- isolation transformer won't supply filiments - 1968 Harmony H400A tube guitar amp
- Single-end Power amp with tubes
- Input pot question
- Need help putting 6Z4 into PSU Designer
- SimpleSE Under Chassis Mounting
- Bias methods?
- Aikido and SE KT88
- Built this pre amp today!
- Mystery tube in a Fisher FM-90X - V50,064
- Switch contacts for HV supply
- The First Sound Recording - we can hear it finally
- RCA made in Japan???????
- 6V6GT in the SimpleSE
- trimmings for amp project
- Tube Preamp Hybrid new builder, lots of question!
- Chinese mini bias pots
- GU-50, GM70 and KT88
- Please recommend me an amplifier design.