Watkins Johnson 1251-2 Synthesizer Plug-In 1-2 GHz for WJ1250A Mainframe

Description

This plug-in is a Watkins Jonhson WJ1251-2, 1-2 GHz, made to plug into the WJ 1250-1255 series of microwave synthesizers. It has quite a few nice standard RF parts including a 1-2 GHz WJ YIG oscillator, pad, 1-2 GHz Narda coupler, and a WJ M1G mixer. I have used this and it worked, but it has been several years and I sold the mainframe, so I am selling "AS-IS" parts, to be on the safe side with everyone.  Hard to find plug-ins for the 1250 though, but worth it in parts alone. Have fun!
Please see my other stuff as I have tons of RF and other electronic goodies!