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Old 14th Oct 2019, 7:26 pm   #28
Maarten
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Join Date: Dec 2007
Location: Haarlem, Netherlands
Posts: 4,185
Default Re: Why Both EAA91 and EB91?

Quote:
Originally Posted by FERNSEH View Post
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?
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).

Last edited by Maarten; 14th Oct 2019 at 7:38 pm.
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