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Valve Adverts, Boxes and Brands
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Hivac
Valve List
H210 L210 D210 P220 PP220 PX230 SG210 VS210 Y220 Z220 & B220 Advert.
•Wireless World,
•November 17, 1933.
H210 L210 D210 P220 PP220 PX230 SG210 VS210 Y220 Z220 & B220 Advert.
•Valve Data Booklet, Wireless World,
•1933.
SG220 Advert.
•Popular Wireless,
•January 19, 1935.
Harries Critical Distance Valves.
•A Guide to Amateur Radio, RSGB,
•1936.
Harries Critical Distance Valves.
•Wireless World,
•September 4, 1936.
SG220SW, D210SW & Y220 Advert.
•Wireless Retailer and Broadcaster,
•October 10, 1936.
SG220SW, D210SW & Y220 Advert.
•Wireless World,
•May 7, 1937.
Harries All Stage A15 Valve Advert.
•Practical and Amateur Wireless,
•January 21, 1939.
D210, VP215 & Y220 Valves Advert.
•Practical and Amateur Wireless,
•March 18, 1939.
Specialists in Midget Valves Advert.
•Wireless World,
•March, 1943.
XY1.4A & XW0.75A Advert.
•Wireless World,
•March, 1948.
Small Valves.
•Radio Valve Data, Wireless World,
•December, 1948.
CC2R Advert.
•Wireless World,
•November, 1950.
Brand Advert.
•Radio Valve Data 3rd Edition, Wireless World,
•1952.
XFY32 Advert.
•Wireless World,
•September, 1952.
XFY30 Advert.
•Wireless World,
•November, 1952.
XFY31 Advert.
•Wireless World,
•December, 1952.
XFW30 Advert.
•Wireless World,
•June, 1953.
Cold Cathode XC18 Advert.
•Wireless World,
•August, 1956.
Indirectly Heated Subminiature Valves Advert.
•Wireless World,
•March, 1958.
XR9 Advert.
•Wireless World,
•September, 1959.
Cold Cathode Tubes Advert.
•Wireless World,
•October, 1960.
Numicator Digital Display Advert.
•Wireless World,
•October, 1961.
L210
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