"Many thanks to David Firth, who is kindly sharing shortwave radio recordings he made on reel-to-reel recording equipment in the late 1960s. Firth is uncovering and digitizing these off air recordings as time allows and, thanks to his generosity, we will be posting these recordings on the Shortwave Radio Audio Archive.
The following is a recording of Radio Peking, which Firth recorded in 1968."

https://shortwavearchive.com/archive/0ngld20pnogg19543yw9mq8rt0ggua?rq=china