Видео с ютуба Interval Signal

Interval Signals of Cold War Europe

Radio Peking (Beijing) Interval Signal 1980

Радио Москва - Radio Moscow (Interval Signal)

Interval Signals of the Soviet Republics

Shortwave Radio Interval Signals-Europe-1-Kurzwelle anno dazumal

Voice of America (VoA) Interval Signal in HiFi Stereo

Deutsche Welle - shortwave interval signal

The Ultimate Compilation of Shortwave Radio Interval Signals and ID's

Radio Sweden - shortwave interval signal

Radio RSA Shortwave Interval Signal 1977

Radio Polonia - shortwave interval signal of Polish Radio

A Collection Of Old Interval Signals From The Nordics

RADIO INTERVAL SIGNALS - "Radio Sweden"

Various interval signals broadcasted on shortwave

Radio Netherlands - shortwave interval signal

Voice of Greece with interval signal and national anthem 9420 khz

Radio Serbia International Interval signal

R. RSA (South Africa) _ Interval signal and opening [1975/3/2]