MT31 TUBE Matched pair ( two tubes )
type MT31 VINTAGE VACUUM TUBES VALVES made by Marconi in Italy in perfect NOS NIB conditions
Metal base, all labels originals, Original boxes LONG BIG BOTTLES FULL SHINING GETTER
MINT CONDITIONS OLDEST PRODUCTION FROM FIRST ITALIAN MARCONI PLANT OF PRODUCTION
VINTAGE ORIGINAL LABELS BUREAU GOVERNMENT
Never been used. Made in 1940'S with strictly specifications for ROYAL AIR FORCE " AM "
RUGGED RELIABLE LONG LIFE MADE DURING WARTIME SECOND WORLD WAR WWII WW2
DIRECT HEATER TRIODE DHT FOR A GREAT PROJECT DO IT YOURSELF DIY POWER AMPLIFIER VINTAGE STEREO FULL OF POWER OUTPUT
Great opportunity to differentiate your audio amplifier from your colleagues
Take out only to take pictures
These wonderful tubes are DIRECT HEATER TRIODE DHT with Round Plate BLACK CARBON PLATE LONG it means Wonderfoul Sound in audio Equipment !!
Here You are Specifications of these tubes
Vf = 10 Volt
If = 4,8 Ampere
V Plate (MAXIMUM voltage plate anode) = 1.600Volt
Similar to RS237 Telefunken and 211 RCA Transmitting tubes made in Italy.
ATTENTION : THE OTHER TUBES IN PICTURE NUMBER 10 - 11 - 12 ARE ONLY FOR COMPARISON IN TERMS OF SIZE , TO GET A REAL DIMENSION COMPARISON AND THEY ARE NOT FOR SALE . THIS LISTING IS ONLY FOR TWO TUBES TYPE MT31 MARCONI
Tube valve lampe röhre tsf 진공관 真空管 HAM RADIO audio hi-end hi-fi diy POWER AMPLIFIER Pre-Amplifier Preamp Pri stereo SE Single Ended PP Push-Pull VINTAGE POWER AMPLIFIER TRANSMITTING TRANSMITTER VALVES TUBES röhren