Hi Richard,
The first 22" Philips G8 model was launched in late 1970.
As mentioned in an earlier post we got lucky with the G6 because the IF panel seemed to fix itself. Over the course of time the pictures just got better and there was no need whatsoever to do any adjustments to the IF transformer cores.
The attachments show the frequencies the transformer cores must be adjusted to. The 41.1Mhz and 41.5Mhz traps L2783 and L2586 are described in the alignment instructions as "channel 1" rejectors. These along with the 33.5 and 33.7Mhz traps define the response curve limits.
Interestingly, the progenitor of the G6 is the Continental K6 which differs from the UK model in having an all valve IF amplifier, EF183 two EF184s and the pentode section of a PCF200.
http://www.technischmuseum.nl/device...lips%20K6.html
DFWB.