Schematic diagram Wonderbar Radio's (C1/C2)

[Rob M.]

Is anyone in the possession of circuit diagrams of C1 and C2 radio's. We want to work on some radio's with several problems this weekend (and transform it in a tech session). I have a electronically background and I'm use to work with tube circuits as well (build some tube amplifiers recently). We have an oscilloscope and a standard multi-meter available but we are lacking the needed circuit diagrams for C1 and C2 radio's (I only have a '54 diagram which is helpful for the first model radios but I would like to have circuit diagrams for '58-60 and 63 radio's as well). If anyone could scan these and publish them we would be very grateful!!!

thanks for your help,
Rob.

[Wayne M.]

Re: Schematic diagram Wonderbar Radio's (C1/C2)

Is anyone in the possession of circuit diagrams of C1 and C2 radio's. ... but we are lacking the needed circuit diagrams for C1 and C2 radio's for '58-60 and 63 radio's as well).thanks for your help,
Rob.

Rob -- I could scan most of the C2 circuit diagrams, as I have the Chevrolet Radio Service and Shop manuals ('63 Wonderbar 985396; '64 AM/FM 985921; '65-7 AM/FM 986281 --- I have all 3 of the latter years and the only difference I see is that the numbers of some of the transistors changed) Also have a poor photocopy of a copy of the '63 AM/FM 985686 (almost unreadable). I could email you larger files so you could re-size as required.

Too bad you don't have the complete manual sets for your session, as there's a wealth of info on alignment, troubleshooting, service parts lists, etc.

Let me know which you need and I'll scan.

[Richard M.]

Re: Schematic diagram Wonderbar Radio's (C1/C2)

Rob, I have original sheets/buletins for:

987730(chevy&corvette-3748611(58-60)
9855003(61 corvette)
985383(62 corvette)

and a detailed troubleshooting guide for the 987730 including electromechanical adjustments.(I may have this scanned already)

It's a bit late here now, but I'll scan them first thing in the morning(Florida EST) so you'll have them for the weekend.

Rich
p.s. a signal generator may help too if you have access to one.

[Jack H.]

Re: Schematic diagram Wonderbar Radio's (C1/C2)

Mission accomplished! An American Care package flew across the Atlantic via email attachment to assist my Dutch Treat, amigo...

[Bernard M.]

Re: Schematic diagram Wonderbar Radio's (C1/C2)

Rob,
I have a Sams Photofact for radio 3725156 (1956-1957). Set 366 Folder 1 dated 8-57. If you don't get one in the package Jack sent you, and you need it, I'll attempt to scan it for you. The print is VERY small and I'm not sure how well a scan will come out. On this side of the ocean, many of the larger public libraries carry Photofacts or similar materials in their reference department.
Bernie Myers

[Rob M.]

Re: Schematic diagram Wonderbar Radio's (C1/C2)

Thanks you all for your offers. As Jack stated, he was able to genourously help me out by sending scan accross the big pond!!!

Thanks again,
Rob.