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Old 21st Apr 2021, 8:43 am   #5
No.1 Labrat
Triode
 
Join Date: Jul 2014
Location: Penrith, New South Wales, Australia
Posts: 26
Default Re: Decca Bradford Preset Brightness Modification?

Just a little bit of information. Here in Australia we got the series 33 and series 39.
Both had a mains isolation transformer and a V.H.F. rotary tuner.
The series 39 had a voltage doubler whilst the series 33 with the 22" and 26" tubes had a trippler. Both had a thermal cut out on the rear cover.
They were, the only hybrid colour TV sold here. I remember their introduction in 1974, prior to colour transmissions officially beginning in 1975. Only three more years until I retire. Well, that's the plan.

Wayne.
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