＠avocollector - I don't recognise that Cossor (the one that isn't a 339) - can we have more pics/info please?
I've got the same Philips, too. A Dutch friend has been kind enough to translate the manual of the model before it (uses A-series rimlock valves, but I'm hoping there's at least a bit of circuit similarity) into English, which'll be up for download on my 5655 page eventually
Ed.