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 Circuits needed for Operatic 45MA and 37MA radios
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 Return to top of page · Post #: 1 · Written at 1:01:02 PM on 20 July 2016.
Fred Lever's Gravatar
 Location: Toongabbie, NSW
 Member since 19 November 2015
 Member #: 1828
 Postcount: 883

Hullo all, I have bought both sets from ebay as wrecks to fix up and have fun. They have the decal sticker on the back and clearly marked 45MA and 37MA models same as you see on historical radio web sites. I have downloaded blurry copies of the circuits from those sites and can trace the sets out but it would be nice to have some good copies. Kevin Chant does not even list "Operatic" or "Bland" and that really surprised me. Maybe they are under another name I dont know about?
Anyone have something better?
I'll be doing some cheap and cheerful rebuilds of both sets for special projects they are both pretty knackered and non original.
Cheers, Fred.


 
 Return to top of page · Post #: 2 · Written at 3:56:58 PM on 20 July 2016.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6014

There are clear-looking 37MA and 45MA schematics on Radiomuseum, but you need to be a member to download them.

Someone here with membership may do that for you.

The schematics I have for Operatic are readable. I have 37MA and 45M. If they are of use unhide your email address (use Control Panel) and I'll send them to you.


 
 Return to top of page · Post #: 3 · Written at 5:27:53 PM on 20 July 2016.
Radio Fan's Gravatar
 Location: Grovedale, VIC
 Member since 11 May 2014
 Member #: 1570
 Postcount: 14

The circuits for these radios are in the AORSM books, 1946 for the 45M and 1947 for the 37MA. I have just finished restoring a 45M and have found it to be a very good performer.


 
 Return to top of page · Post #: 4 · Written at 6:59:58 AM on 21 July 2016.
Fred Lever's Gravatar
 Location: Toongabbie, NSW
 Member since 19 November 2015
 Member #: 1828
 Postcount: 883

Hi GTC, I went to control panel and clicked on show address and got the green selected so I guess it should show now.
Send your copies of the circuits thanks and i'll use those.
Hi Radiofan, i'll do a story on fixing each of them and put them up on special projects in due course.
Cheers, Fred.


 
 Return to top of page · Post #: 5 · Written at 3:50:32 PM on 21 July 2016.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6014

Okay, sent.


 
 Return to top of page · Post #: 6 · Written at 10:40:51 AM on 23 July 2016.
Garyoz's avatar
 Location: Perth, WA
 Member since 19 November 2008
 Member #: 381
 Postcount: 239

I will get Brad to upload the schematics.

Operatic 37MA Circuit Diagram
Operatic 45M Circuit Diagram


 
 Return to top of page · Post #: 7 · Written at 9:17:26 PM on 24 July 2016.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 6354

Files uploaded.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
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