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- SEPTOR AT-amp (Anti-Triode) being built
- Sophia Electric el34 mods/upgrades
- Looking to build....
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- Mod it or scrap it?
- Bogen M330
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- Nice tube test supply
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- Yet Another Phono Stage Suggestions Thread
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- Capacitors and hype!
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- please help 407a
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- Ed8000
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- crate vintage club problem
- GM70/GM70 parafeed SET?
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- Grid - Screen Alignment (X-Rays)
- tube matching
- DC heaters for 5687 in Aikido?
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- Modelling stereo PSU in PSUD ...
- Speaker matching transformer.
- Sowter's Radford transformer
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- Cathode bias 6LU8 UL/Triode
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- 420T or 10E/33B ?????????
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- DIY JTM 45/100 Style Guitar Amp
- Pentode guys: important to decouple g2 supply between stages?
- Ccs
- The Friday Chuckle
- Need help deciding what to build
- Why does red plate spell early death?
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- fisher 400 tweaking issues
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- 300B Transformer temperature
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- Worth repairing?
- Measuring current distortion
- GM70 sockets?
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- PS choke voltage/current quetsion
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- Knight Amplifier Repair Question
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- Datasheet for Russian 6p3s-e
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- I am done with AES -- a short rant.
- CineMag CMMI-15/15B
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- What amp(s) would you buy under $1500
- Etf 2008
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- Quicksilver 8417/12FQ7 mods
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- 311-b
- PSU Design help !!!
- BDT Preamp build
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- Bored with Leak ST20 - ideas?
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- I'm new here..... :(
- DIY/Buy/Kit
- Ralph from Atma-sphere will be giving a talk 09/16
- Modified USB DAC board, DDDAC with triode buffer
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- 6l6 Se.
- Feedback requested on 7591 PP design
- Blackburn Mullard/Philips video
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- Experimenters Tube Sockets
- Used freebies precipitate questions
- Mains toroid as IT with DC balance?
- Tubes for Viva Solista 845 SET amp
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- Warning: new SS relay question / No flame I
- Tube Haunts Thread?
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- 2 stage SE IT coupled amps..
- BUF420M Current Sink
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- PSU capacitors: 30uF film ok instead of 100uF electrolytic?
- Annealed silicon core opt`s
- Designing a "cheap" highish-power PP amp...
- Improvements for the Mikael Abdellah KT88???
- DC supply on driver tube hums..
- Sun Audio SV-2A3
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- SE amp: Please suggest a better operating point
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- Mullard (factory) making tubes again
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- Interesting symmetrical amp from 1955 magazine
- 6N23P, 6S19P anybody knows?
- Worlds smallest HiFi valve amp
- A DIY Interruptus Moment
- Noisy EL84 amp needs new front end
- Loosening up magnetic "stiction"
- The Return Of Blackburn Mullards?
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- tubelab SimpleSe power transformer connection question
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- help for E182CC linestage/driver
- User Beware: A Report On Jj Tubes
- Depletion mode mosfets for 2mA CCS ?
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- Pros and cons of Cascoded front ends
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- RCA voltage regulator
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- 6y6ga
- Filmosound L-1 6V6 Volume pot issue
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- Another 3f4 spice triode model: 5718 submini triode
- hp-8903B advice??
- need info on how to convert my bogen k10 for guitars use
- Differential Amplfiers - current sources under/over the triodes
- Impedance rate VS impedance stability
- Anyone running Mikael's SE KT88 in Pentode?
- what double triode is less microphonic ?
- Need advice on proper use of anode chokes.
- Grounding problem?
- Current regulation for filament of say a 300B
- diagram for OTP 6.6K valve KT88
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- Shocked!!!
- set el84 tube amp
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- I want to build an amp!!!
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