Collins 75A-4 - Demo of Receiver on 40M Band 

I agree - its a beautiful set!

@@RadioRestoration Good time of day. At first, the reception is noisy. Are you probably an urban amateur radio operator? - in the city? I was listening to the 20-meter band today, so I was surprised that it was making noise at the same time as turning on my old air conditioner! )))) (this has never happened before ! ) :(((((((((((((( Hosted on the radio " TS-530 s" 73 !

@@иванепифан-к8ж I am in a very electrically noisy location. The antenna in use here is just a small indoor active loop, but that also picks up electrical noise. Other types of antenna are much worse.

@@RadioRestoration Yes! Such a device (Collins 75) should be listened to far away from electrical interference! I know what it is, "reception for radio tubes")). in the 90s I had a tube unit (Transceiver) and what (impression (!) I received it when distant American radio stations passed through the "polar cap" with CRYSTAL reverberation....