The Outspan Five

Radio Record, Volume V, Issue 11, 25 September 1931, Page 9

The Outspan Five

= & -_-__ Another Success (To the Hditor.) AM very well satisfied with the Outspan Five, which I have recently completed. ‘The results are better than I expected. The first evening I tried it out I logged 14 N.Z., 13 Australian and 6 Amerieans. 2YA comes in with tremendous volume, and I have difficulty in reducing it sufficiently. At present I have to do so by dimming the filaments of the S.G. valves. In daylight 2YA is at full volume, with the reaction condenser turned out, while I have had 2FC about R4-5 at various hours of the day.-s8.45 a.m., 12 noon, and 3.30. 4I have made the following alterations to your specifications :- 1. English valve bases, instead of U.X., as I have valves with these on pand and have always used this type of ase. : 2. I found a rheostat for the detector valve absolutely necessary, as the valve I use (PM4DX) will not work with the full voltage, and does best with the 30 ohm rheostat about onethird on, that is, two-thirds of the resistance in circuit. 8. I found that the 75, 80, 75 turns specified were not enough for the .0003& condensers I used, 2YA being the limit of range, so I added 13 turns to each. and now 3AR is the limit. 4, The reaction was ploppy, so I re moved a few turns from the coil. It is still not smooth, and a few more turns _ Will have to come off. The condenser ’ is a .0002, with 30 turns on the coil. 5. I put the terminals on the end» instead of at the back to suit the position I have the set. The aerial and earth are on the left and the battery connections on the right.-J. Burt, Kohukohu. [We are pleased to learn of your suc cess with the "Outspan"-it is undoubtedly proving a fine set. The ploppy re. action can be overcome by a correct hal ance between the number of reaction turns and detector voltage-Tec, Hd :}