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Constant Current for Tube Heaters. Extend the Life of Your ...
https://audioxpress.com/article/constant-current-for-heater-tubes-extend-the-life-of-your-amplifier-s-vacuum-tubes
Power transformers for tube amplifiers are commonly made with 6.3-V or 12.6-V windings to drive the amplifier’s tube heaters in parallel. Powering heaters with a constant current can require an inconvenient voltage level. The heater supply voltage must be higher than the sum of the tube heater voltages you are driving in series.
Anode Starvation - rec.audio.tubes.narkive.com
https://rec.audio.tubes.narkive.com/aCsaUjeH/anode-starvation
rec.audio.tubes . Discussion: Anode Starvation (too old to reply) Ian Thompson-Bell 2007-11-23 09:41:56 UTC. Permalink. I am designing a tube based microphone pre-amplifier. At present I am trying to sort out the HT supply topology. I would prefer a simple RC network but this reduces the anode volts available to the first stage. ...
Reduced Heater voltage to reduce noise | diyAudio
https://www.diyaudio.com/community/threads/reduced-heater-voltage-to-reduce-noise.174246/
Reduced Heater voltage to reduce noise. I opened a 1987 issue of The Audio Amateur and read a letter to the editor by L. Rusch of Glenham NY. Mr. Glenham discussed a 10 watt amplifier he had built following a circuit in a RCA tube manual. The 6.3 volt tube heaters were supplied with 5.4 volts and demonstrated lower noise as a result.
Tube Heaters - Infra-Red Radiant
https://infraredradiant.com/tube-heaters/
Cost-Effective, Energy-Efficient Low-Intensity Heaters. Detroit Radiant Products Company offers the most extensive line of low-intensity infrared radiant tube heaters available. From our award-winning, engineered vacuum systems to our patented, two-stage line of heaters, you’ll find a product that ideally suits your needs. Re-Verber-Ray® low ...
Schwank | Radiant Tube Heaters
https://www.schwankgroup.com/products/tube-heaters/
Schwank tube heaters deliver efficiency, comfort, and reliability. They are ideal for a wide range of applications with low 8′-to-high 50′ ceiling heights. And they’re perfect for dirty environments and work for negative air conditions where outside combustible air is ducted to the sealed burner for safe, trouble-free operation.
Subminiature Tubes: The Future of Audio! - Effectrode
https://www.effectrode.com/knowledge-base/subminiature-tubes/
Below is an extract from an old RCA datasheet for their 6021 medium mµ double triode tube that gives an idea of the supreme engineering effort that went into ensuring the reliability and consistency of subminiature tubes: RCA-6021 is a subminature medium mu twin triode of the heated cathode type having flexible leads. It is intended for is use in oscillator and amplifier at …
Tube amps and heat - High-End Audio Discussion Forum
https://forum.audiogon.com/discussions/tube-amps-and-heat
Tube amps don’t need to be on all the time. 20 minutes is more than enough time to stabilize. Solar input for Arizona is around 8 KWh/m²/day. A 2400ft² roof is about 1.8 GIGAwatts per day. A refrigerator, computer, TV and all the other electric stuff generates far …
Need to vent tube heat? - High-End Audio Discussion Forum
https://forum.audiogon.com/discussions/need-to-vent-tube-heat
A 5.0 is about 39'' tall 23'' w 16'' d. Has 5 shelves, an can have a stacking kit to add more to it. I keep my tube preamp in it and my tube amp on the side on top of a 2.0 I would not put the amp on the bottom, or all of your components would get heat. On top may work if it is not too heavy, or you don't have a turntable on top.
INSTALLATION AND OPERATION INSTRUCTIONS INFRARED …
https://sunstarheaters.com/wp-content/uploads/2015/06/43343310-IO-SIUSIS50-175.pdf
understood before installing, operating or servicing this heater. INFRARED RADIANT TUBE HEATER Single Stage Pull Through System (Negative Pressure) Models: SI S SERIES: (50, 75, 100, 125, 150, 175) – N5/L5 SI U SERIES: (50, 75, 100, 125, 150, 175) – N5/L5 !INSTALLER : This manual is the property of the owner.
Elevated Heaters/DC heaters How? - Tube amp …
https://el34world.com/Forum/index.php?topic=15932.0
I've seen the same in tube-regulated power supplies (either standalone or in tube oscilloscopes): a high positive voltage (sometimes the output voltage of the regulator) is applied to the heater center-tap for the tubes being used in at least the series-pass-tube positions, as these are often power output tube types and have their cathodes ...
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