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813 SE triode amps - Pete Millett's DIY Audio pages
http://www.pmillett.com/813_se_triode_amps.htm
The output stage is an 813 tube, connected as a triode. The 813 is a ~100W pentode designed for radio transmitter and modulator service, and was used in the WWII timeframe, I think. It was a common tube in smaller AM broadcast …
813 / GM70 amplifier with Bartolucci transformers
http://www.audiodesignguide.com/Claudio845/813amp.html
This amplifier without modifications will allow to use the GM70 and the 813 (FU-13) output tubes. The 813 is a general-purpose transmitting beam power tube with thoriated-tungsten filament with a maximum plate dissipation of 125 watts.
Shuguang Vacuum Tube 813 For Tube Amplifier Replace FU13 ...
https://www.iwistao.com/products/vacuum-tube-813-shuguang-for-tube-amplifier-replace-fu13-high-power-output-quality-hifi-audio
Shuguang Vacuum Tube 813 For Tube Amplifier Replace FU13 High Power Output HIFI Audio. Tube 813 belongs to antique one, which is a direct thermal beam …
813 Tube Amplifier 2X50W Dual Mono-block Integrated Tube ...
https://www.iwistao.com/products/2x50w-813-tube-amplifier-dual-mono-block-integrated-tube-rectifier-sound-field-control-otk6h1-6j4p-driving-amplifier-hifi
2 x 50W HIFI Tube Amplifier Dual Mono-block Integrated Tube Rectifier Sound Field Control OTK6H1 Plus 6J4P Driving amplifier 813x2 5Z9P Rectifier Large Power Output Model No: WVT3250 Features 1. Adopt 2pcs OTK6H1 + 2pcs 6J4P as driving amplifier; 2. Adopt 2pcs 813 as power amplifier; 3.
Vacuum Tube - 813, Beam Power Amplifier | Antique ...
https://www.tubesandmore.com/products/vacuum-tube-813-beam-power-amplifier
Vacuum Tube - 813, Beam Power Amplifier. $79.90. Quantity *. Add to cart. In Stock. Quantity in stock: 11. New-Old-Stock (NOS) tube. Also known by US military identifier VT-144. The 813 is a general-purpose transmitting beam power tube of the thoriated-tungsten filament type designed for use as an rf power amplifier and oscillator as well as an ...
Audioromy 813 Amplifier - LAMPIZATOR
http://lampizator.eu/amplifiers/CHINA/audioromy/Audioromy%20813.html
The supplied 813's are obviously chinese made, but this radio broadcasting tube was popular worldwide in the 50's and is available as nos from many many brands. The similar amp at similar price is called Sound Track 813 Class A Integrated Valve Tube Amplifier and to me looks even better than Audioromy.
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