[Ron Ramirez]

Yes - mineral spirits to clean the dial. Here's the thread:

http://www.philcoradio.com/phorum/showth...p?tid=1503

However, don't press on the dial markings when cleaning the dial or else the markings will get lighter (part of the ink will rub off).

The hinged lid to conceal the dial was carried over from the design of the 14LZX. When new models came out in July 1933, the entire top of the 14RX, 16RX, 17RX & 18RX swiveled open to reveal the dial and controls - which were still upside-down.

Yes, the outlet on the back of the 19LZ chassis was intended for use with a lamp, electric clock, or other device that did not draw a large amount of current.

This isn't the only Philco chairside that has the dial and controls reversed (upside-down) in relation to other similar models. In fact, most Philco chairsides used upside-down dial scales. The only ones I can think off offhand that didn't are:

• Model 370
  
• Model 71LZ
  
• Model 37-620CS
  
• Model 38-7RX
  
• Model 38-14RX
  
• Model 38-15RX
  
• Model 39-7RX