Lear Jet Model P-570 Cruiser

Like so many other pieces I have acquired over the years, I don't recollect when I picked this one up or from where although probably a relative handed it down. I've had it set up in my basement workshop for some years and works just fine. It has a built-in amplifier that powers the speakers (one is detachable) and that audio quality is just so-so.

Since I have an amp and speakers with a bit more juice in that room, I figured that I could improve things if I patched this player into that system. The problem is that this unit lacks a line-out connections so I needed to install one. I read how to do this in a Popular Mechanics article back in the 1960s and have added this feature to quite a few devices over the years. All that is necessary is to open the unit up, locate the volume control, look for the two connectors on the end, not the one in the middle, and determine which one is ground. Solder in an audio cable and attach that to a female RCA audio jack. Do the same for both the left and right channels. On this one I simply left the cable long and didn't mount the jacks into the cabinet itself. Once connected to the stereo system it sounds pretty good. Of ocurse, while I had the unit apart I did the usual cleaning, Deoxiting, and lubing that we do with these old machines. It should keep playing for many years to come.

You can view the owner's manual in PDF by clicking here.

Click on an image to enlarge it.

Updated December 2020.