[OKDXA] Another Interesting Piece

[AC5UP]

Good looking AM/FM tabletop receiver, 1947 Crosley:

http://www.shopgoodwill.com/viewItem.asp?ItemID=2983766

Here's the schematic:

http://www.nostalgiaair.org/Resources/view.asp?FN=\M0003649.pdf

The warped dial window could probably be smoothed out over a few days by 
removing it, then, with some paper towels as padding, sandwich it 
between a smooth surface and something heavy like
an old transformer to ease it back into shape. Failing that, adding some 
gentle hot air persuasion from a hair dyer might do the trick.

I thought the schematic was noteworthy for several details... Crosley 
offered a full drawing as an AM set and another as an FM set so the tech 
wouldn't have to do mental gymnastics through the bandswitching. Also 
note the loctal base 7F8 tube as the FM local oscillator. All others are 
standard octal. FM alignment requires a cathode ray oscillograph and 
sweep generator. Weirdest item is the free retrofit kit offered by 
Crosley to reduce microphonics on the FM side. Replace a few parts, glue 
a bypass cap to the chassis, flood the space between the two FM gangs on 
the tuning cap with adhesive, add a rubber mount to the speaker, etc. 
Looks like when the 50's came in the FM local oscillator could rock & 
roll in more than one way.

BTW: Been hearing KDKA in Pittsburgh (1020 kHz) Q-3 for the past week or 
so and that's my telltale winter band condx are starting up.
Also had pretty fair copy on KOB in Albuquerque (770 kHz) last night. 
That's one I never hear in the summer. Equinox will be on September 23rd 
this year and that usually means about six weeks of interesting DX 
opportunities on 10 and 15 starting now, but the upper HF bands have 
been so stinko that I wouldn't count on it this year... ;)