Zenith Royal B47 schematic

[centralradio]

Quick lookup for the Sams date is January 1, 1973.So it probably came out late 1972 just in time for Christmas 1972..

nasadowsk was asking for the date info.

[centralradio]

90 hits . Anybody can help me with this radio.Any takers..

Must be a rare radio..Not much online about it. Dont see anything on Radio museum unless I looked wrong.

Need a schematic with a similar design with 2SC735,2SA562 and a 2SB482 as driver configuration.Also with two diodes after the driver..More likely need transistor pinouts in circuit to see what is up..

Looks like the guys at the shop where I got this from worked on it.I want to see if the 3 transistors were installed right.I may did an error the other day putting some in wrong too..

With brain fog. Been years away dealing with these non transformer amps.. I rather deal with push and pull amp circuits..

[centralradio]

Had a chat with a friend earlier today online.He is a radio restorer for years . He does not have a copy of the Zenith manual or the Sams TSM manual.

He suggest to put an infamous LM386 chip on a small perf board small enough to fit in the case with out altering original parts and case.Its a quick cheat fix for now until some schematics or service manual shows up later on.Then fix it the right way when the manuals come in hand..