RECEIVERS

Type A7 Tuner

DATE OF DESIGN

1928

FREQUENCY RANGE

60 to 170 kc/s.

WHERE USED/FITTED

Fitted with D/F Outfit SF. A7 is a very simple tuner fitted in conjunction with amplifier M9 for use with a horizontal frame aerial. As can be seen from the equivalent diagram, the tuner merely places an LC circuit in series with the frame coil. A separate heterodyne is always to be used for CW reception.

IMAGES, PHOTOS, DOCUMENTS, SCHEMATICS ETC.

Photographs and Schematics