[wonderwrench]

Hi

Use a Type 55 bulb for the main dial lamp; four Type 44 bulbs for the Magnetic Tuning lamps.

Speaker baffles? Can you be more specific? Are you referring to the wooden cone placed in front of the woofer? Or perhaps are you referring to the set's Acoustic Clarifiers (called passive radiators today)?

For the RF unit, you want a set of three of Renovated Radios' part number PHG-RF. Part GPH-1 for the chassis support washers.

That bulb setup looks like a safe bet. If the flood lamps were not 55's using them would draw way too much current. The 37-690 I'm working on has 2 55's and 2 44's for the flood lamps now.

By looking at the parts list I get the idea there was some type of baffle system that passively coupled the acoustic clarifiers to the woofer. My father claims they had such a setup. See PN's 24045,16284,27-8572-A etc. My father has 2 37-690's and nether one has such a device.
To me the acoustic clarifiers would do near nothing without some such device.