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 Identifying 1973 Thorn TV
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 Return to top of page · Post #: 1 · Written at 12:28:40 AM on 19 August 2026.
OldLC's avatar
 Location: Sydney, NSW
 Member since 18 August 2026
 Member #: 2796
 Postcount: 1

Hi there,

I'm new here and wondering if anyone could help identify a TV model owned by my Grandparents in the 1970s.

It is a long shot I know as I have very minimal information - I have two photos showing the TV in the background from December 1975, an invoice/Delivery Info for the TV - January 1973 (without any real useful information), a repair invoice - January 1975 (which describes the TV as a Thorn).

I'm hoping it's ok to post a few links to photos:

1. https://flic.kr/p/2svVVDM (First photo of the TV)
2. https://flic.kr/p/2svUu1s (Second photo of the TV)
3. https://flic.kr/p/2svTSzW (Delivery Receipt)
4. https://flic.kr/p/2svTSzf (Repair Receipt)

Please excuse the redacted sections of the invoices + the poor quality of the photos of the TV itself.

Any ideas/help would be appreciated -I've tried researching but not found anything that matches online.

Thanks!


 
 Return to top of page · Post #: 2 · Written at 7:58:08 PM on 19 August 2026.
Ian Robertson's Gravatar
 Location: Belrose, NSW
 Member since 31 December 2015
 Member #: 1844
 Postcount: 2726

I recognise that TV as a 17" Thorn using the 1500 chassis.

Can't help with cabinet / model numbers though.
But I'm pretty sure that model number is fictional!

If you do find one I can help with getting it working!


 
 Return to top of page · Post #: 3 · Written at 7:53:54 PM on 13 September 2026.
Keith Walters's avatar
 Location: Sydney, NSW
 Member since 16 January 2008
 Member #: 219
 Postcount: 69

From memory that used the Thorn hybrid "R" chassis.
It was essentially the same as the UK 1500 chassis, except it had a VHF tuner and a power transformer.
The UK version was a hot chassis, with a multi-section wirewound resistor across the top of the main PC board.
In the UK the biggest section of the resistor was used as a dropper for the series heater chain. It wasn't needed in the original Australian version, because the power transformer provided the correct voltage, but it was still left there, not connected.
If I remember correctly, there was a later Australian version that used standard 6 Volt valves.
They weren't bad sets, easy to work on and pretty reliable.


 
 Return to top of page · Post #: 4 · Written at 3:38:43 PM on 20 September 2026.
Ian Robertson's Gravatar
 Location: Belrose, NSW
 Member since 31 December 2015
 Member #: 1844
 Postcount: 2726

Most of the R chassis I saw (including those badged "AWA") used 6V heaters.

There was a subsequent fully Oz designed all solid state chassis - the T series - that was a huge improvement on the R chassis, designed to drop into the same cabinet bracketry as the R chassis. Easy to mistake for an R chassis at first glance from the back.
Not many of these around, I've only ever seen one.


 
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