Quad II 22 Pre-amp phono adaptor. Type AA these are made by ourselves in U.K to the original Quad circuit drawing, and are fitted with gold plated brass pins. These are an alternative to the original which are harder to come by and becoming more expensive to buy. 
 
This type of adaptor will allow you to connect both a mono and stereo turntable to your pre-amp and all allow you to switch between mono and stereo. On the front panel switches. 
 
We have tested these and compared them to our original and there is in our opinion no discernible difference in sound quality. 
 
Due to these are handmade, they may slightly differ in appearance to the one pictured. 
 
Please see photos as these form part of the description, the photo of the Quad 22  is for demonstration purposes only.