1970 Camaro AM Radio

[elonblock]

School is now in session and I am learning all sorts of new things here.

Here is a site which can help to decode a Delco radio:
http://www.wonderbarman.com/codes.html

I also uncovered the tag on the side of the radio. It reads:

Service model no. 21APB2
Serial no. 1473548
Product no. 7933241

The ink stamp on the transistor is kind of blurry and difficult to read, even with my glasses and a magnifying glass. It is stamped as either 7219, or 7Z19?

The way I am decoding it looks like this:
Service model no. 21APB2

2 = 1972
1 = Chevrolet
A = Midsized: Tempest, Chevelle, Camaro, ChevyII, Acadian, Skylark/GS
PB =Push Button AM
(1, 2) on the end which indicates a running change or revision number.

Am I reading that correctly?

And Danny you are correct. The right main stud is missing. Good eyeballs.
I totally missed that.

I appreciate everyone's help.