08-09-2008, 07:36 PM
This device (preamp or whatever) has a 57 tube in it. The 57 has a tube shield that looks like a 'goat' shield on it. It is wired down to the audio input terminal strip on the radio. It has a RCA phono jack on it.
Here is a picture of it.
[Image: http://i135.photobucket.com/albums/q136/...Preamp.jpg]
Ed
Here is a picture of it.
[Image: http://i135.photobucket.com/albums/q136/...Preamp.jpg]
Ed