Bang & Olufsen Beogram 4000 Tangential record player

[guimbadriver]

this turntable are a amazing project of 70s i remember when it was introduced in hi fi market 1973 the machanics and electronics is incredible it uses a 24 VAC 4 pole motor drived by a variable frequency oscilator and in the logic control 4 MOS ICs

[ollyk22]

@guimbadriver there are actually about 9 DTL I.C.'s under that keypad alone. Can be fun diagnosing faults that's for sure!