DIY 12AX7, ECC99 MiniAmp | DIY Guitar Freak
amplifier - Looking for Power Transformer for ECC99 OTL Headphone Amp - Electrical Engineering Stack Exchange
Updating the Simple EL84
ECC99 push pull with dumble preamp --> became a stombox preamp - The Amp Garage
Single Ended ECC99 - 6C33C Amplifier with regulated tube PS
JJ ECC99 Gold JJ Electronic
Super-Triode SE amplifier | diyAudio
2A3-ECC99 SET Power Amplifier (with Sophia Electric) | Flickr
ECC99 push-pull build with JCM800 preamp - the JCM Eight Hundredths - Music Electronics Forum
Single Ended ECC99 - 6C33C Amplifier with regulated tube PS
ECC99 push-pull build with JCM800 preamp - the JCM Eight Hundredths - Music Electronics Forum
Evermore Single-Ended Amplifiers
Marshall DSL5CR – Musikhaus Thomann
ECC99 SRPP Headphone Amp
DIY tube push pull monoblocks I recently finished (EL34 + 6N6P/ECC99) : r/audiophile
ECC99 gold - Vacuum tube | JJ Tubes
Error Take-Off and Super-Triode
Tube-Town Store - JJ ECC99 Selected GOLD
All tube headphone amplifier - jaeblog jaeblog
ECC99 push pull with dumble preamp --> became a stombox preamp - The Amp Garage
Tube-Town Store - JJ ECC99 Red Label
Audiophile Tube Amplifiers with the ECC99 (Paperback) | The Toadstool Bookshops of Keene, Nashua, and Peterborough, NH
6N6P (original box) | Tube Analog: ECC99 / E182CC | Soviet-Tubes
ECC99 SRPP Headphone Amp
Second modification of the line stage with ECC99 of the Vanderveen MCML05 pre-amplifier”
