Really advanced technology here [snigger]. No dual A.C./D.C. mains either, the heaters for the not-often-found-in-tellies 'E' range of Mullard valves having their own heater transformer whilst the H.T. - always a struggle to get enough volts here and hence would really benefit from a mains transformer - is directly rectified from the mains.
You won't find any poncy energy recovery diodes either, something that
had become pretty much standard design by other manufacturers during the
previous decade. Perhaps that was because Mullard never thought someone
would be dumb enough to use the 'E' range in a telly and therefore only
produced 'P' versions of boost diodes. Without the energy recovery diode,
I'm impressed it managed to get enough power to scan the C.R.T. - pehaps
the total lack of any line linearity control that might have sapped a
bit of power helped.
By now, most sets were superhet designs, but good old Ferranti stuck to the T.R.F. design (only to release a modified superhet version, the T1505S, the following year). Screening between sections of a T.R.F. receiver is even more important than with a superhet design so it is good to see Ferranti putting so much effort into such screening ... errr... riiiiight ...
Well, having almost assasinated the set, time to come clean. I've no idea whether they were really aweful or really excellent sets. Not that it matters - its a lovely and unusual set, you don't see many Ferranti's about from this period (though can't help feeling I know the reason why). Also, like GEC, Ferranti seemed to have used C.R.T.s with a particularly flat front face, though to be honest I'd rather have a slighly bulbous C.R.T. face if it meant I also got an ion trap magnet to protect the C.R.T.!
|SERVICE DATA||The set is covered by "Trader" service sheet #1011 (the superhet version is covered by trader sheet #1103).|
|CURRENT STATE||Worm free and the set has clearly not seen much damp. The finish would have been good too in as much as there is no cracking to the finish and the top, which usually suffers from many years of vases and other crap perched on top of it, is very good; but overall it is peppered with little dings here and there.|
|WHERE FOUND||£59.99 from Fleabuy. An unusual set and only a few miles down the road to collect it. Sweeeeet !|
|Note that there appears to be some kind of linen material bonded to the bulb of the C.R.T., presumably as some kind of protection should the C.R.T. implode. By coincidence, the original warning text on the back cover of the receiver of the receiver has been covered by a different warning label particularly emphasising the risk of C.R.T. implosion. I wonder if there is a connction here ?||That C.R.T. looks way more bulbous than the front of the
set would suggest.
Note the completely seperate radio section in the lower half of the set - complete with the radio's original back panel !
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THE TELLIES GALLERY
2nd July 2008