Radio set Passed Examination by The Ministry of Posts and Telecommunications
No.124 NEC Model RA-111A 6 tubes 2 Band All Wave Super Heterodyne , Nippon Electric Co., Ltd. (1948)
Early Model. Cabinet was equal to former model RA-110.
Serial No.10446 Tube location label still remained
RA-110.
TUBES: 6WC5 76 6D6 6B7 42 80, BC:550-1500kc, SW: 6-18Mc, I.F.: 463kc, Electro-dynamic
Speaker (NOBLE Model FD-65, 6.5")
In 06/1948, NEC sold Model RA-110 (Passed No.17) as standard all wave super heterodyne.
Model RA-110 used Ut-6L7G and 76 as converter.
At that time, New converter tube 6WC5 started mass production.
RA-110 prepared modification to 6WC5.
Minor changed model RA-111A used 6WC5.
6WC5 did not need local oscillator tube.
To minimize modification, oscillator tube (76) remained.
Shield case on the 6B7 was additional parts at servicing. Power transformer
was replaced.
(Collection No.11731)
Later Model. Design of cabinet was changed. Chassis was not changed.
Serial No.10906
Speaker was replaced into permanent type. 6B7 replaced into 6ZDH3.
Appeard on the magazine "Musen to Jikken"(The Radio Experimenter's Magagine) 09/1948 published by Seibundo-Shinkosha
(Collection No.11560)