Quote Originally Posted by Beobloke View Post
Link here: https://beocentral.com/beomaster5000-1960s

The best tuner I've heard by a country mile, and the Aiwa AT-9700 that preceded it was no slouch!

Mine came from the BBC. It was used in Broadcasting House to monitor the quality of transmissions.
Was once keen to hear one of those Aiwa's but I couldn't, when I was interested, find one in nice enough condition to buy.