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 STC A5235 Radiogram circuit
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 Return to top of page · Post #: 1 · Written at 6:15:58 AM on 6 December 2018.
MarkTwo's Gravatar
 Location: Sydney, NSW
 Member since 9 September 2013
 Member #: 1407
 Postcount: 10

Hello everyone

I was asked to look at reparing an STC radio gram for a family friend while I was visiting my family in Wagga last week
. Pulling the chassis out was very easy, and judging by the amount of dust and cobwebs, I am the first person to peer inside in the last 50 years...
I am after a circuit diagram if anyone has one. While I have recapped a few old radios over the years, I had the entire radio to work on. It simply wasn't practical to take the entire radio gram with me, as it's about 2 feet wide, and about 3 feet high!!
With the speaker still mounted in the cabinet, I will have to whip up an suitable sutstitute for the audio transformer, and speaker, and hope that the radio tolerates a degree of mismatch while I test it out.
Do we have any members from Wagga that might be able to help if things get tricky?

Mark


 
 Return to top of page · Post #: 2 · Written at 7:50:06 AM on 6 December 2018.
MonochromeTV's avatar
 Location: Melbourne, VIC
 Member since 20 September 2011
 Member #: 1009
 Postcount: 998

I'll send a PDF copy of the schematic to Brad to upload here.

STC A5235 Circuit Diagram


 
 Return to top of page · Post #: 3 · Written at 1:27:44 PM on 6 December 2018.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 4966

Document uploaded to Post 2.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
Brad.

A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 4 · Written at 11:03:51 AM on 7 December 2018.
MarkTwo's Gravatar
 Location: Sydney, NSW
 Member since 9 September 2013
 Member #: 1407
 Postcount: 10

Thanks Monochrome TV and Brad.

Now to start making a shopping list of parts, and just hope that none of the valves need replacing!!

Mark


 
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