RECEIVERS

Type B9 Tuner Amplifier

DATE OF DESIGN

1928

FREQUENCY RANGE

3000 to 25000 kc/s.

WHERE USED/FITTED

Fitted with Receiver Outfit QL. Note the top picture is the "B9 New" and the bottom " B9 Old". Quote.....B9 is designed as the HF receiver in Sloops etc., normally employed on detached service. It is no use for Fleet work owing to the fact that the amplifier is designed to oscillate and hence re-radiation takes place (see Admiralty Handbook of W/T (1931) paragraph 693(1)).

IMAGES, PHOTOS, DOCUMENTS, SCHEMATICS ETC.

Photographs and Schematics