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Bartola® Valves

Tag: EIMAC

A beautiful thoriated-tungsten glow

Here are a couple of recent pictures of the 4-65a EIMAC under test. What an attractive glow!

 

Author Ale MogliaPosted on May 21, 2012May 21, 2012Categories DHTTags 4-65a, 4-65a triode curves, dht, EIMAC, Thoriated-tungsten filaments, transmitting tube, tube curve tracer, valve curve tracer, valves3 Comments on A beautiful thoriated-tungsten glow

About Bartola® Valves

This is my humble contribution to that warm and unique sound that the valves provide to our ears.

As an enthusiast of electronics, here is my repository around valves, hi-fi amplifiers and everything I found interesting to share related to music reproduction. Hope you enjoy this.

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Bartola ® and Bartola Valves Logo are registered trade marks of Bartola Ltd. in the United Kingdom.

Bartola Ltd. is a limited company registered in England and Wales. Registered number: 10819140. Registered office: London, United Kingdom.

Copyright notice

All schematics and designs are copyright Alejandro Moglia and Bartola Ltd. UK unless stated otherwise. All rights reserved. You are welcome to build the circuits presented here for your own personal entertainment. You may NOT build from information on this page for commercial profit without a royalty agreement with the author in place.

Many of the devices described in this site use or generate potentially lethal electric currents. If you use the information in this site to kill yourself, your friends, family members, acquaintances, total strangers, pets, electronic devices or burn down your house, it is not my problem!

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  • Home
  • About me
  • Gyrator PCB
  • Older valve & hi-fi posts
  • Cartoons
  • Curve tracer
  • For Sale
    • Completed PCBs for sale
    • Building block PCBs
    • Gyrator PCB
    • Source Follower PCB
    • Cap Multiplier PCBs and modules
    • CCS PCB
    • SiC Bias PCBs
    • Cables
    • LL1943 PCB
    • LL7903 PCB
    • HT Supply PCB
    • Rhytmik F12BO w/ A370PEQ3 amp subwoofer
    • DHT LT Supply PCB
  • DHT filament regulators
    • DHT Push-Pull
    • DHT filament regulator
    • Why filament regulators in DHT?
  • DHT Preamps
    • The Mule Project (continues)
    • 3B7 DHT Preamp
    • UV-201a DHT Preamp Revisited
    • 2P29L DHT Preamp
    • 2Ж27Л / 2Z27L DHT Preamp
    • 01a Preamp (Gen2)
    • 4P1L (4П1Л) Siberian Gen4 – DHT Preamplifier
    • Siberian Gen 3 (4P1L pre-amplifier)
    • 26 DHT pre-amplifier (Gen2)
    • 71a DHT pre-amplifier
    • 26 DHT pre-amplifier (Gen1)
    • 26 DHT Preamp Gen3 (Gyrator version)
    • 26 DHT Pre-amplifier (Gen3)
    • EML-20A DHT Preamp
    • Ba DHT Preamp Build
      • 6P21S
      • 24a Tetrode
      • 6P36S / 6П36С (triode)
  • Traced curves
    • D3a Pentode
    • D3a triode
    • 4P1L
    • 2SH27L / 2Z27L
    • 47 Pentode
    • C3g pentode/triode
    • 3A5 DHT triode
    • 6P15P Pentode
    • 2e24 (triode/schade)
    • 864 / VT-24
    • 307a
    • 6Z49P-D (triode)
    • 6Z11P (triode)
    • 6Z51P (triode)
    • 6Z9P (triode)
    • 6Z5P (triode)
    • 6P15P (triode)
    • 6E6P-E/6Э6П-E in triode mode
  • Library
    • VT-154 / 814 Tetrode Datasheet
  • 300B SE Amplifier
  • THD measurement
  • Privacy Policy
  • Home
  • About me
  • Gyrator PCB
  • Older valve & hi-fi posts
  • Cartoons
  • Curve tracer
  • For Sale
  • DHT filament regulators
  • DHT Preamps
  • Traced curves
  • Library
  • 300B SE Amplifier
  • THD measurement
  • Privacy Policy
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