Clipped and Shorn Posted January 17, 2005 Share Posted January 17, 2005 Were those gas filled voltage regulator tubes like VR105 ever employed in audio amplifiers. They are, for example, used in transmitter power supplies to stabalize critical grid voltages in oscillator tubes etc. Wondering why I have never seen them in audio amps. http://www.allaboutcircuits.com/vol_3/chpt_13/9.html http://www.electronixandmore.com/project/1.html OC3 - VR105 / 105Volt max 40mA One of the best voltage regulators ever made - and still available. Gas filled tube, without filaments. It has excellent long term temperature stability, better than any silicon device. Has just two connections, and is used like a Zenerdiode. Can be used as transient suppressor, or stabilizer device. Can be serialized to get the required voltage. Just put four in series and get 420 Volt / 40mA. The American types are lighting pink. The Russian type uses Neon gas, and lights up bright orange. hmmm...googling my own question, I found this : Example C&S Quote Link to comment Share on other sites More sharing options...
mike stehr Posted January 17, 2005 Share Posted January 17, 2005 I seen them in Organ amplifiers, a OC3, or OD3 in a pair of Webster/Allen 6550 PP's. Some homebrew DIY amps use gas regulator tubes, I have no idea about commercial amplifiers. Quote Link to comment Share on other sites More sharing options...
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