Beautiful RCA 8000 tube. It's either new or barely used. The getter is full and the only scratches on the base are from when it was tested. The 8000 is a low mu (16.5) 125 watt CCS triode. Cap at the side is the grid connection the top cap is for the plate. The 8000 was designed in the early 1940's. The first mention I have found is in February/March 1941 issue of "Ham Tips from RCA." Overall height approximately 8.5" Fit the same socket as 211 and 845 triode tubes.
One-hundred and one circuits for vacuum tube shortwave radios compiled by the editors of Radio & Television. They appear to be from 1932 to 1934. Primarily...
Hi! More tube porn. This time from the Danish room. Magic blue glow from a set of rectifiers in Bjorns amp: Rectifiers made in Denmark, supplying juice to an amp with Siemens Da DHTs probably made in Berlin. The driver is a Bo, also made by Siemens. Beautiful horizontally mounted mesh plate. The amp: The anode of the Da consists of two separate plates, so the filament is visible from the side. D3a tube in a LCR phono stage: Extraordinary execution of the chassis work, made by Claus: Best regards Thomas
Hey There, Pinterest Virtuoso! You've Discovered the Hidden Passage to Guitar Mastery! (It'll self-destruct after you read it. Lol) Get Your Free eBook --> Click Here! Welcome to our Exclusive Pinterest Gateway! You've struck a chord with us by coming from Pinterest, sharing a passion for the guitar's magic. This special portal is crafted just -
[caption id="attachment_136647" align="alignright" width="152"] Homemade Vacuum Tube[/caption] About a decade ago I started a strange little journey in my free time that cut a path across electroni...
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MODULAR APPROACH WITH PHONO PREAMP RIAA MM Audiophile Vacuum Tube Integrated Modular Amplifier: 2x8Watt, 5 x RCA inputs, Toroital Transformers in custom schielding metal covers. Optional you can choose a Phono RIAA Pre-amplifier for Moving Magnet cartridge (MM). Various finishes available, other finish under request. A-Class Amplifier 2 x 8W 5 x
Spotted this article in Audio 1955. This crazy amp features 4 KT66 tubes for power and starts at 700 volts. If I ever need an arc welder or room heater maybe consider this one. This at least warns the novice this may be dangerous. PDF Article availavle for download here.
Ontdek verleden, heden en toekomst van Philips. Inspiratie, educatie en meetings in centrum Eindhoven.
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In this post, NJ2X remembers the inventor of the Audion tube, Lee De Forest, on his birthday. Author=NJ2X
This is an all new material from the amp guru Gerald Weber. You will learn the six dreaded tone killers and how to avoid them, the top ten amp-tone tips, and how to fine-tune your entire amp setup. In short, you will have the knowledge needed to squeeze your amp's performance from lame to insane.
The ValveLiTzer: Low-voltage Tube Booster: Here's a little tube booster project for guitarists. It colors the sound with some tube distortion (although it's more an overdrive than a distortion pedal), a little compression, and it boosts the signal, too. It's a "dirty boost," with the flavor …
Vacuum Tube Manual: RCA RC-30 1975
