The cr1602 , and variations, is shown to be in the 1961/62, 1962/63 &1963/64
volumes of R&tv servicing.
Perhaps I should mention that 'Radio and Television Servicing' is
generally called 'Poole and Molloy' who where the (main?) editors of said
series of books (the ttile did change a couple of times, the very first
volume is the 'Radio Engineeer's Servicing Manual', for example)).
Unfortunately , I don't have those but I know
someone who might.
I have them.
-tony