Gu81m Audio Amplifier

GU81m Amplifier - Alex Kurrasch

http://alexkurrasch.com/amp/amp.html

Mono & Stereo © 2021: P Audio GU81-M tube amplifier

https://www.monoandstereo.com/2019/07/p-audio-gu81-m-tube-amplifier.html

Mono & Stereo High-End Audio Magazine: Magico - Nagra - Tidal Audio - Wilson Audio - MSB - Totaldac - Living Voice - Taiko Audio - Aries Cerat -Thrax

GU-81M Linear Power amplifier - Ham-amplifiers

https://ham-amplifiers.com/en/power-amplifier-gu-81m

Comments. The shortwave power amplifier is made according to the classical scheme by a common cathode on a GUU-81M rectogonal lamp. This is an "old", reliable, time-tested lamp with graphite anodes and does not require forced …

GU81M / GU-81M / GU81 / GU-81 / GU80 / GU-80 - Zeitmann tubes

https://www.zeitmann-tubes.com/MilitarySurplus/NosRussianMilitaryTubes/GU81M.htm

Height: at most 240 mm. Diameter: at most 105 mm. Mass: at most 1 kg. It can be used in self generated power oscillators, drivers and linear power amplifiers, too. It is a ruggedised military transmitting pentode up to 600 W output power, with good parameters, as follows : …

GU81M - Intact Audio

https://www.intactaudio.com/forum/viewtopic.php?t=1232

GU-81m tube amp schematics??? | Page 8 | diyAudio

https://www.diyaudio.com/community/threads/gu-81m-tube-amp-schematics.183163/page-8

GU81m would be an interesting candidate to try with my CCS heater supplies. Maybe this will be too much heat dissipation? Because of the 10A current. If You have say 3V cca. collector-emitter this will be about 30W dissipation (minimum) at the pass transistor? So the heat-sink for just warm...

MB 81 SET - GU81

https://highend-sound.com/produkter/icon-audio/effektforstaerker/mb-81-set-gu81/

The sonic qualities of the magnificent GU81m valve make it the ideal candidate for those seeking. a high power Single Ended Triode amplifier. Its 100 watts of power make it ideal for low to medium. efficiency speakers in medium to very large rooms and will give outstanding results. This venerable 1950s GU81 transmitting valve has superb audio qualities and is tremendously robust.

GU-81m tube amp schematics??? | diyAudio

https://www.diyaudio.com/community/threads/gu-81m-tube-amp-schematics.183163/

Just forget the GU81M tube for Audio aplication ! Generaly this big RF power tube live is relative short ,common failure is usual break of extreme tiny DC heated thoriated tungsten kathodes wire .They live for around 1000 Hrs,and thats tube live expectancy is signed in the factory specs to.

Icon Audio MB81 SE Mono Block Valve Power Amplifier …

https://www.analogueseduction.net/power-amplifiers3/icon-audio-mb81-se-mono-block-valve-power-amplifier-pair.html

Vostok - 1.5 KW HF linear amplifier using GU-81M ( GU81 ...

https://www.golectures.com/index.php?go=search&q=Vostok%20-%201.5%20KW%20HF%20linear%20amplifier%20using%20GU-81M%20%28%20GU81%20GU81M%20%D0%93%D0%A381%20%D0%93%D0%A3-81%D0%9C%20%D0%93%D0%A381%D0%9C%29%20tube%20-%20by%20YO6PMX

Vostok - 1.5 KW HF linear amplifier using GU-81M ( GU81 GU81M ГУ81 ГУ-81М ГУ81М) tube - by YO6PMX. x. GU81M HF Linear Amplifier: Close-Up 32:49. Homebrew HF linear amp using two GU81M tubes. Also close up of the HV supply ... Building A 1.3 KW Audio Hi-Power Amplifier Using Eimac 3-400Z Part 4 of 4