Right-to-Repair the Northern Electric Baby Champ?

I've been chatting with Dave and Vince about Steve Wozniak's Right-to-Repair video (I've embedded it at the end of this post). It got me wondering if my father's old radio could have been repaired by him back-in-the-day if he needed to.

That radio is a Northern Electric Baby Champ. It seems there were several versions of this 'rainbow' style made between 1946 and 1950. I think my father's is a model 5104, which sold between 1949 and 1950. One of the links suggests that in 1946 the radio cost $28 CDN, and an internet inflation calculator tells me that is about $412 CDN worth of buying power in today's money, so this was a rather pricey piece of equipment.

Why was it called 'Baby Champ'? Probably because of its relatively small size for the time. This one doesn't say Baby Champ on the front, but on the back is that photo of a baby wearing boxing gloves.

Does it still work? I don't know. All the radio broadcasts are digital, so it can't be tested just by turning it on and listening for what it picks up. 

I do recall that while things were still analog, it did work, and I don't remember it ever needing to be opened up to fix. It did take a long time to warm up, and it hummed loudly while doing so. My father kept this thing on a high shelf in the workshop, and it was tuned to some country and western station at all times.

Here's the back, and its got the usual warnings, brandings, certifications, and, given it's a tube radio, a tube layout schematic. The red label gives you a stern warning that you need a license to operate this radio, but doesn't mention any prohibitions about fixing it:

Warning: Any person installing or operating this receiving set without first having obtained a licence from the Minister of Transport of Canada is liable, on conviction, to a fine not exceeding twenty five dollars, and the said receiving set may be forfeited to his Majesty by order of the Minister for such disposition as the Minister may direct.

(Extract from Canada Gazette Radio Act of 1938 Revised Jan. 26 1939, Regulation 66 Part II)

I've never opened this thing up before, but this is what the innards look like after removing 4 screws on the back panel, and carefully sliding off the front knobs. It's completely caked with dust, but it looks intact.

However, if you flip over the chassis, the components down there are looking just fine.

Any factory warranty? That's all that's left of a notice stuck on the bottom of the cabinet. It looks like there might have been free service for a certain period after purchase, but from the pictures it looks like if you were a radio tinkerer, you could likely attempt to fix it yourself, or maybe just replace tubes. 

So, fixable by an amateur? Looks that way. Here's what Steve Wozniak has to say: