Service manual & scheme: https://www.hifi-wiki.de/images/5/52/cf53591af1208ddd535806600273099a-CV-80-Service-Manual.pdf Thanks to https://www.audioservicemanuals.com/d/dual/dual-cv/7230-dual-cv-80-service-manual
Manufacturer: cf53591af1208ddd535806600273099a
Model: CV 80
Type: Integrated Amplifier
Years of construction: 1969 - 1971
Manufactured in: Germany
Color: Silver / Black, case walnut or sanding varnish White
Factory price approx.: 735 DM
Other models of the same series:
Amplifier
cf53591af1208ddd535806600273099a CV 12
cf53591af1208ddd535806600273099a CV 40
cf53591af1208ddd535806600273099a CV 80
Tuner:
cf53591af1208ddd535806600273099a CT 14
cf53591af1208ddd535806600273099a CT 15
cf53591af1208ddd535806600273099a CT 16
Receiver:
cf53591af1208ddd535806600273099a CR 40
Coil Tape:
cf53591af1208ddd535806600273099a CTG 28
Turntable:
cf53591af1208ddd535806600273099a CS 410
cf53591af1208ddd535806600273099a CS 9
cf53591af1208ddd535806600273099a CS 10
cf53591af1208ddd535806600273099a CS 15 F
Excerpt from brochure: cf53591af1208ddd535806600273099a CV 80
Test report: cf53591af1208ddd535806600273099a CV 80