Page 19 Advertisement 1

Radio Record, Volume II, Issue 21, 7 December 1928, Page 19

E ADING makers of radio sets recognize RCA Radiotrons as the standard valves for all A Radiotron tor euery uses in both transmitting purpose RABetecto,oN Xplizez-A and receiving instrunents. BADIOTRON OF.199 Detector Ampllfer They specify them for tests, RADIOTRON 0X-199 Detector Ampllier RADIOTRON WD-11 initial epuipment and Detector Amplifer RADIOTRON WX-1? Detector Amplifier replacement; RADIOTEON UX-Ro0-A RADloTRON Detector only RADIOTRON OX-120 UX 2O1A Power Ampliier, Last Audio Stago only RADIOTRON OX-322 Screen Grid Radlo Radiotrons ate the heart Frequency Amplifier of the Receiving Set; To RADIOTRON UX-11?-4 Power Amplifer maintain fine' reception, RADIOTRON OX-17l-A the valves in your Set Pozedlo" Gbigdero onl,ase should be replaced with RADIOTRON OX-%1O new Radiotrons at least R Poresciliaollier once a year; Do not use RADIOTRON UX-840 new valves with old: Best Detector Amplifer for results are obtained by Resistance-coupled Amplicaticg changing all valves at one Look for thig RADIOTRON 0X-850 mark on erery Power Amplifer time: RADIOTRON: BADIOTRON 0X,836 AC. Filament RADIOTRON 0Y-?37 4.0. Heater RADIOTRON OX-280 Full Wave Rectifer RADIOTRON UX-?81 Half Wave Rectifier; RVOEREEROR Keggitoz" RCA Radiotron Valve BADERHEPN Valvev-878 m.a 0 E 8 . Y T 4 � M ^ K � R $ 0 & T H_E R ^ 0 / 0 L &' EADIOTRON UV-880 Ballast Velve The Standera by whlch Radiotron Booklet Free: on Request Other Valvea ere rated ~@RLDvM Amalgamated WRELESs Wireless (Australasia) td Box 830 WELLINGTON