Sharp cut-off high gain R.F. pentode. Used in wide band amplifiers such as television and radar intermediate frequency and video amplifiers.
The date on the box probably refers to when this valve was taken out of service.1968 as the year of manufacture seems too recent.
6.3 volt indirectly heated cathode.
Manufacturer: Mullard (Mitcham works), England.
Tubular glass bulb with exhaust tip and 7 pin miniature base. Valve is contained in original carton. Rectangular carton coloured green, white and blue in various places. Company name and logo in red and white.
Transfer from Science Museum of Victoria (SMV), 01/08/1971
Bulb: (Mullard logo)/6AM6/(BVA logo)/MADE IN/GREAT BRITAIN/ER1/R8F2 Carton: Two sides the same: Mullard/ELECTRONIC/VALVE Other two sides the same: (Mullard logo)/GUARANTEED ELECTRONIC VALVE One end: 6AM6/Mullard Other end: (Mullard logo)/VALVE Handwriting on one side of the carton: Stab RHS from front/4 7 69
Type of item
66 mm (Length), 23 mm (Width), 24 mm (Depth)
Dimensions of box containing valve.
53 mm (Length)
Dimensions of valve only.