1. Aerial series condenser, midget variable or fixed. 2. Aerial inductance, low loss winding, 20's enamel wire, wound 18 to inch, tapped at 18th turn from earth end as shown. 3. Aerial tuning condenser .0005 mfd. 4. Neutralising condenser of very small capacity. 5. Radio-frequency valve, medium impedance, about 16,000 ohms. 6. R. F. Rheostat. 7. Primary coil of radio-frequency transformer. 14 to 20 turns of 30's wire. 8. Tickler, rotatable, 10 or more turns 30's wire. 9. Secondary coil of R.F. transformer, 75 turns 22's wire, space wound, tapped 15th turn from primary end. 10. Reaction condenser, .00025 mfd. 11, Grid Leak and Condenser. 12, Detector valve, medium impedance, about 16,000 ohms. 13, Detector rheostat or bradleystat 14, Condenser over 'phones or primary of first audio transformer, '001 mfd, 15, First audio transformer, 5 to 1 ratio. 16, First amplifying power valve, low impedance, about 7000 ohms. 17, Second audio transformer, 5 to 1, or 3 to 1. 18, Grid bias or C battery, voltage to suit amplifiers, 19, Second amplifying power valve, very low impedance, about 3500 ohms. 20, Rheostat controlling both audio valves. 21, audio choke, about 20 heures. 22, Fixed condenser, 1 to 2 mfds, 23, Loud speaker. B1, 2, 3, 4, are connected to the various voltages of B battery as required by the respective valves.

Radio Record, Volume I, Issue 7, 2 September 1927, Unnumbered Page

1. Aerial series condenser, midget variable or fixed. 2. Aerial inductance, low loss winding, 20's enamel wire, wound 18 to inch, tapped at 18th turn from earth end as shown. 3. Aerial tuning condenser .0005 mfd. 4. Neutralising condenser of very small capacity. 5. Radio-frequency valve, medium impedance, about 16,000 ohms. 6. R. F. Rheostat. 7. Primary coil of radio-frequency transformer. 14 to 20 turns of 30's wire. 8. Tickler, rotatable, 10 or more turns 30's wire. 9. Secondary coil of R.F. transformer, 75 turns 22's wire, space wound, tapped 15th turn from primary end. 10. Reaction condenser, .00025 mfd. 11, Grid Leak and Condenser. 12, Detector valve, medium impedance, about 16,000 ohms. 13, Detector rheostat or bradleystat 14, Condenser over 'phones or primary of first audio transformer, '001 mfd, 15, First audio transformer, 5 to 1 ratio. 16, First amplifying power valve, low impedance, about 7000 ohms. 17, Second audio transformer, 5 to 1, or 3 to 1. 18, Grid bias or C battery, voltage to suit amplifiers, 19, Second amplifying power valve, very low impedance, about 3500 ohms. 20, Rheostat controlling both audio valves. 21, audio choke, about 20 heures. 22, Fixed condenser, 1 to 2 mfds, 23, Loud speaker. B1, 2, 3, 4, are connected to the various voltages of B battery as required by the respective valves.