Index to Back Numbers.

Radio Record, Volume II, Issue 14, 19 October 1928, Page 28

Index to Back Numbers.

BRELOw is the promised index to the construction page during the time from the commencement of the "Record" to the last issue. A number of readers have asked for such an index to be published, and it will no doubt be of great assistance to many. Articles are all listed by the dates on which they appeared, as dates are easy to find, being printed on every page, whilst the serial number is only on the front page. Some of the dates between July and September are duplicated, but they are all 1927 unless 28 appears in parenthesis after the date.

A BATTERY. Caleulating Capacity, Sept. 23. Valve-type Charger, March 2. Variable Charging Resistance, May 11. Leather Carrier, June 8. Charging, July 20 (’28). New Invention, Sept. 7 (’28). 3 to Gamp. Charger, Sept. 7 ('28). AERIAL. Erecting, July 22. Lead-in, October 7. Insulators, Nov. 25. Wave Trip, Jau. 6, 13, March 23. Capacity and Wavelength, Jan, 18. Frame; Construction, April 27. Loop Circuits, May 4, 11. Novel System, June 29. Sereening of, Aug. 3 (’28). Frame, Tuning Capacities, Aug. 10 (°28). Trouble-free Pole, Aug. 31 (°28). Erecting 40-foot Mast, Sept. 7 (28). Reader’s Wave-trap, Sept 7 (’28).

AUDIO. Output Filter, Dec. 30. Push-pull Explained, Jan. 18. Motor-boating, Jan 20. Filter Choke, Feb. 3. Facts About Last Stage, Feb. 17. Amplifier Distortion, March 9. Sereen-grid as Amplifier, March 23. Double-Impedance Amplifier, April G. Resistance-Coupled, Hints, May 25. Avoiding Troubles, May 25. ‘Push-pull, June 15. : Transformer-eoupled, Hints, June 22. A.C. for Last Filament, June 29. Big-volume Amplifier, July 27 (’28).

Transformers, Testing, August 24 (’28). Transformer Cores, Sept. 21 (°28). Gramophone Pick-up, Principle of, Sept. 28 (’28). Improving Amplifiers, Sept. 28 (728). . Modern Transformers, Adapting, Sept. 28 (28). B BATTERY. 112-vole Accumulator, July 29, Aug. 5. Charging Accumulator, Sept. 30, Oct. 7. Depreciation of Dry B, April 6. Making Pasted-plate Accumulator, April 18. Resistances for Output, April 20. BROWNING-DRAKE. Full description, Sept. 9, 16, 23. Repeat Description, Feb. 10. Two R.F. Shielded, May 18, 25. Sereen-Grid Booster, June 1, 15.

CIRCUITS. Neutrodyne 5, Sept 2. Diagram Signs, Sept 23. Neutrodyne Explained by Hazeltine, Dec. 2. S625 as R.F., March 16. Sereen-grid for Short-wave R.F., March 16. Sereen-grid for 1st Stage B.-D, April 20. Crystal, Loose-coupled, May 4. COILS. Solenoid Wave-lengths, Sept 3. Making Spider-Web, Feb. 17. CONDENSERS. Mansbridge, Aug. 19. By-pass, etc., Sept. 2. a ee it ge dl

Making Fixed, Dec. 9. In Power Supply, July 6. CRYSTAL. Long-distance Hints, Aug. 5. Simple Receiver, Aug. 12. "Record" Receiver, Aug. 19. One-stage Amplifier, Aug. 26. "RR." Pocket Set, Dec. 16. General Construction, Dec. 30. "RR." Selective, Jan. 6, 13. Variometer Set, Jan. 20. Two-stage Amplifier, Jan. 27. Spider-coil Tuned, Feb. 24. Loose-coupled Circuits, May 4. Composition and Properties, June 22, With One Amplifier, July 6. "Colvyern" Receiver, July 20, (’28). With Battery Potential, Aug. 24 (728). EARTH. Connection Hints, July 22. Counterpoise, Jan. 13. Buried Type, Sept. 28 (728). ELIMINATOR. Full-wave B, Oct. 14, 21, 28, Nov. 4, 11, 18. Condensers, Dec. 2. lor D.C. Mains, Feb. 24. B, For Small Sets, March 23, 30. B. Controlling Switch, Simple, March 28. Action of B Explained, April 27. Regulator Tube, July 27 (728). A Bliminators, Oct. 5, (°28). Regulator Tube, July 27 (’28). Interference, Dealing With, July 27 (728). GRID BIAS. General, March 238. Without Battery, June 1.

LOUD-SPEAKER. Choosing, Sept. 2. 16-foot, Jan 20. Linen-Diaphragm, July 13, Aug. 17 (728). Home-built Cone Unit, Aug. 10 (728). Moving-coil Explained, Aug. 31 (°28). Double-roll, Constructing, Sept. 7 (728). Improving Small Cone, Sept. 21 (728). MISCELLANOUS. Polish and Stain, Nov. 25; Oak Finish, Aug. 81 (’28). Wave-Trap, Jan. 6, 13, R.F. Choke, Feb. 17, Sept. 14 (’28). Reaction Explained, May 4. Wire Table, Mar. 16. Discovering Polarity, June 8. Frequency ‘Test Notes, Aug. 10 (28), Aug. 17 (’28); Aug. 24 (728). Backlash (reaction), Aug. 17 (’28). Phasatrol, Aug. 31 (’28). Volume Control, Methods of, Aug. 31 (28). R.F. Amplification and Selectivity. Sept. 14 (’28). Soldering Hints, July 29, Nov. 25, July 27 (728). REPRODUCTION. Seeking Pure, Oct. 21, 28, Jan. 20. Distorted, April 20. SHORT-WAVE. "Record" 8v. Receiver, Dec. 9, 16. "Record" Adapter, Dec. 23. Screen-Grid Booster, June 29. VALVES. Choosing Suitable, Feb. 24. Secreen-grid Action Explained, Mar. 9. $625 and Circuit, March 16, Filament Fuses, June 15,