[Nathan Slingerland]

I've been enjoying the holiday weekend by devoting some time to my Model 15X (June 1932).

[Image: https://farm1.staticflickr.com/924/43535...7c80_z.jpg]

I haven't run into anything too surprising but I thought I'd post some pics and notes from what I found since they might also be useful to anyone working on one in the future.

As usual before starting I tried to read over as many prior Model 15 restoration threads as possible - and had an especially good read of bandersen's 15DX thread - a great starting point to compare against.

I've seen that some 15X radios have a black fiber board back of later Philco. My 15X still has the wood / woven back that I've seen previously on the Model 112X (Jan 1932) that I worked on previously so I assume some time in 1932 was the changeover.
[Image: https://farm2.staticflickr.com/1784/2869...c829_z.jpg]

My 15X is one of the early production models with a hard-wired speaker harness. Awkward!
I ended up removing the speaker board and desoldered the harness initially. That was fine until the first power-up when I just ended up resoldering after protecting the speaker board with cardboard and balancing them on top of the chassis. I can see why Philco added a plug in later runs!
[Image: https://farm2.staticflickr.com/1782/2869...ff90_z.jpg]

It seems like every K-12 speaker I've seen has rust on it. This one actually isn't too bad. I wonder if it has something to do with the cloth glued to it attracting moisture? The H-7 speaker below it is practically rust-free.

Here's the chassis as pulled. Dusty and some moderate amount of rust:

[Image: https://farm5.staticflickr.com/4863/4595...0933_z.jpg]

[Image: https://farm5.staticflickr.com/4814/4527...e8b6_z.jpg]

The bottom of the chassis looks quite a bit cleaner:

[Image: https://farm5.staticflickr.com/4864/4509...fa07_c.jpg]

[Image: https://farm5.staticflickr.com/4871/4509...5fac_c.jpg]