Golborne Vintage Radio

Golborne Vintage Radio > The Archive (15+ posts needed to download attachments) > Test Equipment > Decca/Unaohm EP685A TV test generator
Full Version: Decca/Unaohm EP685A TV test generator
You're currently viewing a stripped down version of our content. View the full version with proper formatting.

ppppenguin

03-10-2017, 06:51 AM
Circuit diagram for Decca/Unaohm EP685A TV test generator on 4 sheets. Originals kindly supplied by Dave Ingrey.

Rather to my surprise the circle generator is all analogue. Very little logic, all original 74 series TTL.
Golborne Vintage Radio > The Archive (15+ posts needed to download attachments) > Test Equipment > Decca/Unaohm EP685A TV test generator