Project: Crosley 52TF Radio with Zenith SS Chassis

[GypsysFire]

This build envolves installing a Zenith 8ZT14 SS chassis from the 60's Radio in a Crosley 52TF shell.

The end goal is to have a Class-A radio with improved sound, along with Bluetooth / Auxillary input.

Here's the radio working on an FM frequency. Speaker is a Dayton Audio ND-65, 2-1/2", 8Ω, 15W RMS. Resonant frequency of the box is around 57 hz.

IMG_4215 | Zack Fedor | Flickr

Radio build photos. Tuning Capacitor sits to the side, bit instead of hacking the chassis I'll just leave it and get creative with the dial face. Radio tuning knob will not be the center one, as hoped, but the world won't stop spinning.

E22CA7A5-38F8-4759-9F85-B8F5F7524D13 | Zack Fedor | Flickr

C6DED3AD-2129-4668-A3AF-D647498FC7DF | Zack Fedor | Flickr

75AD798F-8DEB-4618-A85B-56433451D13E | Zack Fedor | Flickr

 

[GypsysFire]

Here’s part of the electrical schematic; it shows part of the amplifier section. I measured the output transistor at 92vdc as promised. Didn’t measure the preamp transistor (didn’t have time), but I’m guessing it will be around 40vdc because it’s rated at 75v.
If anyone has the schematic and would be willing to share, I’d be very thankful.

6D8C23A2-135B-4A6B-ADC5-1EF016202427 | Zack Fedor | Flickr

 

[GypsysFire]

Progress on the radio. Rewired with stranded copper wire (original was solid core aluminum), speaker box finished & installed, output transistor heat sink relocated and it has been wired for Bluetooth input.
Sounds great for a radio.

10C214E6-FD99-4FD3-8779-4A6E35C2B52C | Zack Fedor | Flickr