Quote:
Originally Posted by Phil G4SPZ
Many thanks for taking the trouble to post such a comprehensive response, particularly the attachments. I'm much the wiser. Thanks again,
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No problem! I forgot to include the link to the Mullard Valves, Tubes & Circuits Collection. They are in the following thread, first post courtesy of forum member Valvepower:
https://www.vintage-radio.net/forum/...ad.php?t=62844. They are worth reading, as in effect they look behind the regular data sheets.
Philips Book IIIC, covering the initial TV valves and their applications, including the ECL80 is available here:
http://frank.pocnet.net/other/Philip...tronTubes.html. Also there is Book IIIA, covering the Rimlock radio valves and fellow travellers. I don’t know if Book IIIB was ever issued – I have not seen any trace of it. I imagine it would have covered the initial release of the FM-AM novals.
Cheers,