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Old 12th Sep 2019, 9:28 am   #11
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,147
Default Re: Emiscope 3/16 Crt

They certainly were. These were expensive models. The same chassis was fitted in the 1902, the magnificent 'Teleradiogram.' [We have one at the Dulwich museum together with a good example of the HMV 1851]This was still in production in 1953 and must have been the last to still obtain it's EHT from the mains supply until the end of production.
There was nothing to compare it with in the EMI sales booklets other than the AC/DC range that was miserable in comparison. The TA10/15 gave such good pictures that the range was still in demand later than it normally would have been.
Models that employed this chassis in five channel construction: HMV 1805 1806, 1851, 1902, Marconi VRC52A and there may have been others. The 10" models, TA10 were dropped from production around 1951 but the very expensive 15" models, in various guises continued. Due to the original high cost of receivers EMI continued to supply replacements for the TA10/15 well beyond the expected life of the receiver itself. They were very reliable and fitted with a very robust EHT transformer.
Just a thought.
If you have a problem focusing the 3/16 you will probably have to pass a little more current through the focus coil. Maybe a resistor mod is required to centralize the gantry.
Regards, John.
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