Three Modern Sets

Radio Record, Volume VI, Issue 13, 7 October 1932, Page 6

Three Modern Sets

The October ‘Radio Times.

a IS month’s "Radio Times" again ‘sets a high standard and should have a very wide appeal. The constructor has been very well catered for, there being three complete sets and a powerpack, all profusely illustrated. The sets include a seven-valve superheterodyne, which is described in such a manner that anyone with the most meagre constructional experience can puild it successfully. Arrangements have been made with the trade to supply coil and condenser gangs at a frematrkably low figure, so that trouble on this score will not be encountered by eonstructors. It is a one-dial job, with tone and volume controls. Instructions and diagrams are so complete that no-one we feel sure, will meet the slightest difficulty in building. Battery sets are represented by the 1982 Outspan Four," which has been described by the designer as the RollsRoyee of battery sets. A powerful modern four-valve set, comprising two stages of screen-grid r.f. screen-grid detector and pentode output, this set is easily the most powerful, valve Zor valve we have yet described. It incorporates single dial tuning, reaction, which, whilst giving maximum sensitiyvity does not interfere with the balancing, adjustable automatic bias on the ¥£. valves and the pentode, designed so

that the "B" consumption is from 10 to "A" air cell. It is the last. word in 12 milliamps, and the "A" consumption modern .8 battery sets. 8 of an amp, making it possible for the The "Modern Five" is a t.r.f. a.c. set set to use three "B" batteries and an employing three of the latest six-pin

valyves-two r.f. pentodes and a screene grid detector. A new system of bias is introduced, and constructors will find this of considerable interest. The "Link Three" is continued in Part 11, the pow-er-pack. It is some time now since a power-pack has been described and constructors will. find this .description. exceedingly helpful. There is also the coil particulars for the "Link Three" and particulars of how to make a baffle for the speaker. Another article which will appeal to constructors is "Hints on Soldering," some "Practical Tips’ by "Handyman." There is a very complete description of America’s radio city, an account of Mr. Roy Keith’s station,: 1ZQ, Auckland, and Shortwave Club notes. The "Digest"? section contains interpretations of the regulations and an account of the activities of the’ New Zealand Radio Institute, several interesting cases in. the "Service Department," the solution to problems on'Ohms Law, and the statistics from the Customs Department. "The Radio Log" has been brixhtened, particularly the Club Notes, Avhich refer this month more to listenitig conditions than heretofore. There’ is an interesting description of WTIOC, Hartford, a good list of Buropean stations a full list of Japanese.