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The Studio ‘E’ Leaflet
Within a few days of the start of the Studio ‘E’ one-valve radio construction series, the BBC received over 26,000 requests for leaflets. Have they all disappeared? No! It took 14 months for the right person to visit this site and contact me with scans. With his permission and that of the BBC, they are available at the bottom of this page for your personal non-commercial use. Enjoy! |
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A high proportion of those 26,000 leaflets probably only survived
a few months or years before being destroyed. It needs more of
a sense of history to preserve such ephemera than most children - or even
adults - have. So three cheers to Doug Brown for preserving his
copy! Who knows how many other copies remain hidden away,
forgotten by those that possess them?
General points The leaflet is a single sheet, 16 inches x 10 inches, folded at the centre to form a four-page leaflet 8 inches by 10. Doug Brown's copy (images accessible below) is torn, disfigured with Sellotape adhesive and other stains, and carries his uncle's notes on the resistor colour code. The scans are unretouched, entirely legible, and full of character! The relevant editions of the Radio Times show that the series was broadcast in six parts, the first aired on 30 September 1957. After a two-week pause, five more parts followed from 21 October to 18 November. The leaflet itself, no doubt prepared some time in advance, states that the series was to be in four parts commencing on 21 October and concluding on 11 November. I am inclined to take the Radio Times listings as correct, as it was - and still is - printed and distributed very shortly in advance in order to reflect last-minute schedule decisions. The 30 September programme was perhaps an appetiser only. By 21 October, interested viewers would have received their leaflets and maybe bought theit kits of parts, and they could begin to follow Gilbert Davey building the set with these to hand. As for the extra programme on 18 November, perhaps the previous programmes - all broadcast live in those days - had over-run, and a further instalment was needed to complete the build. Or perhaps, in response to requests, it dealt with issues not covered in the leaflet such as provision of aerial and earth, setting up, and use of the reaction control. The circuit and practical layout The detector-with-reaction circuit is essentially the same as other versions of the Davey Beginner's One-valver. Apart from the first (1948) triode version, they all used one or other of the miniature B7G 1.4 volt types. The Teletron coil and the tuning, reaction and fixed capacitors are typical of several versions. On the DAVEY 1-VALVER HISTORY page, I discuss the circuit in a little more detail. On the same page, I also speculate that the useful split-floor construction of the Studio ‘E’ chassis may have been adapted from a design for a short-wave one-valver which appeared in the first edition of Fun with Radio (page 59). This feature would have contributed towards ease of construction for the many first-time builders who followed the series. Now that the leaflet is to hand, it can also be seen that the component layouts are strikingly similar. On the PLANNING MY STUDIO ‘E’ REBUILD and MY REBUILT STUDIO ‘E’ SET pages, I have added brief notes comparing my conjectural set's build with that as described in the leaflet. See the "Postscripts" on each page. The images These images are BBC copyright, and available for your personal non-commercial use only. If you wish to pass them on to a friend, please send a link to this web page. He will then have access to the viewing and printing suggestions as below. The images are available below in two forms:
If you have an A4 printer, it is probably easiest to use the individual JPEG images below. Click the icon to download the PDF file. If Acrobat Reader opens within your browser, use the "Back" button to return to this page when download is complete. If Acrobat Reader opens in a separate window, close that window to return to this page. Having printed the file on to A3 paper, you can then trim off the blank paper round the edge, leaving a sheet about 16" x 10". Fold this in half to form a full-size four-page leaflet. JPEG page images: High-resolution files, each about 2000 pixels by 1600. Exactly as supplied by Doug Brown, unretouched, but with just a little compression for reduced file size without significant additional fringeing etc. Click any of the thumbnails below for access to individual page image files (each 126 - 143kb). Each will be displayed on its own in your browser. Do not be disappointed by their initial appearance - your browser will downsample the displayed screen image to fit the window. Use your browser's "Back" button to return to this page. Printing depends on the capabilities of your image software and your printer. For full-size printouts, size each image so as to occupy the full width of a "portrait" A4 sheet, leaving an inch or so at top and bottom. You could tape together two A4 sheets (each printed both sides) to form a four-page leaflet. |
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My thanks go to the BBC for their permission to reproduce the leaflet, and also of course to
Doug Brown for contacting me and allowing me to use his scans.
I would be delighted to hear about your rebuild of the Studio ‘E’ one-valver from the leaflet's details, and I would still like to know of any other leaflets that come to light! I will be reconstructing my Studio ‘E’ set in due course. Meanwhile, the details of my conjectural rebuild (carried out before Doug Brown contacted me) remain on this site - see PLANNING MY STUDIO ‘E’ REBUILD and MY REBUILT STUDIO ‘E’ SET |
