Description
MADE IN AUSTRALIA
The 6AR7GT is a duo-diode pentode that was manufactured in Australia (only) by AWV for late1940's to mid 1950's Australian domestic receivers including the Hotpoint V55ME, the Tasma 1122 Car Radio, the Tecnico 1140 (1951), and others.
The 6AR7GT made its debut in Sydney in 1949. It was manufactured initially by Amalgamated Wireless Valve in Sydney under the ''Radiotron'' brand, and later in Adelaide by Philips under their ''Miniwatt'' brand.
Credit for the design of the 6AR7GT tube goes to F. Langford-Smith, a well known Australian Radio Engineer who worked for AWV's parent company, Amalgamated Wireless Australasia Ltd (AWA).
He is widely renowned in the electronics world as the principal author of the Radiotron Designer's Handbook.
The Tasma 1122 was an Australian made auto-radio that heavily relied on the robust nature of the 6AR7GT's LEAD shield, which made it far more durable against vibrations compared to European spray-coated equivalent tubes such as the Philips EBF35.
The 6AR7GT is instantly recognizable by its distinctive lead shield on the lower section of the glass tube.
NOS (New Old Stock) 6AR7GT tubes are becoming extremely rare due to the fact that the tube was only made in Australia.