THE TELLY TECHIE PAGE

Rejuvinating
a C.R.T.		 Low emission doesn't need to be the end. "Boosting" can squeeze a few more months use out of a tube, or maybe the cathode itself can be rejuvinated.
CRT Heater
Open Circuit		 Another dodge for repairing a tube with an open circuit heater. I can't say that I'd ever recommend this method but perhaps it may prompt you to devise a safer, more repeatable, solution.
C.R.T Replacement A guide written by Mullard on substituting a later tetrode type C.R.T. in some early sets that previously used triode types
The Manufacture
of C.R. Tubes		 An illustrated tour of the E.M.I. cathode ray tube manufacturing plat in 1952, including details of the then recently introduced aluminising process.
Replacing the
MW41-1 C.R.T.		 Replacement of the short-lived MW41-1 CRT with a more "modern" MW43-69 tube.
Spot Wobble As picture focus improved and screen sizes increased, the line structure of the picture became more apparent. In an attempt to hide this Mullard devised an experimental spot wobble circuit.
Servicing
The Projection
Television System		 Booklet used with a film strip produced by Mullard showing in detail the construction of, and the servicing of, the projection T.V. unit used in many of the early 50's projection televisions. Split into four sections.
Projection
Television 		An artical from the first edition of Practical Television (April 1950) at a time when projection sets such as the Philips 1800A were just beginning to appear on the market.
Choosing a
Receiver		 A technical review of a number of the T.V.'s available in the early part of 1951, comparing their technical specifications and their price.

From Practical Television Magazine

PDF File Title Author Magazine Edition(s)
UsingTheWobulator.pdf [550K] Using a Wobulator R. Brown Sep and Oct 1960
ABandVRxer.Pdf [2.3MB] A Band V Receiver R. B. Archer Jan, Feb and March 1962
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