Transmitter concealed in household receiver.
Used by the Haganah Signal Service in fixed stations.
Made in the US by Dale Polack, and smuggled to Eretz Israel as household radio receivers.
Also called DB-63: DB are the initials of David Banett, the engineer building the radios; 63 is the gematria of the word ‘Haganah’.
Frequency range 2 to 12 MHz, Morse (Continuous Wave) and Voice (Amplitude Modulation), ~10 Watts output power.
Power supply: 220 Volts AC.
