Quote:
Originally Posted by FERNSEH
First application for the Mullard EB91 in a TV receiver was in 1946 in the Pye B16T. Later Pye TV receivers employed the EB41.
Did Mullard go it alone with the EB91 with no Philips input?
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Was it actually marked thusly in the set, or only in a (later) service manual?
P.S. Evidence that the EAA91 was also labeled EB91 (for the British market?):
http://www.r-type.org/exhib/abn0112.htm
The Philips factory code list supports this as well. An early single digit code W for the EB91, a later code 'mirrored 2' for the EAA91 and then a double digit code R3 for EB91 and a double digit code 33 for both EAA91 and EB91 (presumably with the external dimensions of the EAA91).