[ChasL0001]

Hello Chas. Radiomuseum has information on both sets. 

Thanks Gary, lots of good info there.

Perhaps we'll have to reverse engineer this to sort it. So let's start w/what tubes does it use? And are the tube sockets riveted down or are they fasten w/screws?

Yes, that was my thinking Radioroslyn, the VALVE (sorry, I'm a Brit) bases are all screwed onto the chassis.

The Valves are in these positions, as viewed from the rear:-

[Image: https://i.imgur.com/lROG9qb.png]

From Radio Museum, it seems that the set uses some standard USA tubes and one non-US tube.  The 3 Tube + Rectifier models listed in Radio Museum use an 80 rectifier, 6A7 Pentagrid Convertor, 78 remote Cutoff Pentode IF (pretty normal so far) and the wierdo PenDD61 dual diode detector and very high gain pentode output stage tube.

The following link the Vacuum Tube Archive magazine has an article on "Philco and the PenDD61"

Thanks for that info MrFixr55, very interesting, shame the link does not allow saving the PDF. Yes, I figured the valves (sorry tubes) may well be a combination of Brit and US types, something I've not come across before. I might not be able to proceed too far as one valve is loose in it's base and rattles, so without a tester, I'm loath to spend too much time replacing components without knowing if they're good. I do have a working Philips valve radio, that may have the same valves, so might be able to test them in that.

Talking of "Peoples Radio" here in the UK, we had "Utility" radios, cheaper makes for those less fortunate. My first involvement was as a baby, pulling my brother's radio over and grabbing the mains cable, which had been repaired with insulating tape, and grabbing it. I still have the scars, both mental and physical. ;)

BTW, it's Chas not Chaz. Another Brit variant  

From what I can remember the model 444 "People's Radio" used a special tube/valve called a PenDD61 - Arran

Not one in my set.