My father had a Crosley model 51 & 52 many years ago. (The '52' had one extra Valve Audio stage). Unfortunately, they were 'Disposed of', (stolen!) after I moved from my original house... Sigh. I've always wanted to find another, (quite rare here!), and do it up to like brand new condition & have it fully working, in honor of/for my father. Have now just bought one!! Here's a view inside the top......
It is a 'Regenerative Receiver', with feedback to a mechanically adjustable coil, (seen in the photo), in front of the main coil. It has quite a simplistic (though typical of the day), Grid-Leak resistor, typically around 2-Meg, mounted on top of the filtering Capacitor, connected to the Grid.
P.S. I always LOVED the old style 'Book-Capacitor' underneath the GridLeak/RF-block Capacitor!!
I was 'tickled' though, (and originally confused!), when reading online about a "Grid-Leak-Drip-Pan" that one company made years ago, which hung under the 'Grid-Leak' Resistor!!! (to catch the 'leakage'). It's a NOVELTY just for fun,
but I WANT ONE !!