Delco 5300 A (Serial No: 24)

is a Spy Radio, like its predecessor GRC-109 : It was developed from DELCO for the CIA and has a very compact size.

It works from 3.0 to 8.0 MHZ.

The solid state radio has a watertight housing , the operational elements, however, are not watertight.
It is switched on by opening the lid. A Morse key is built in; it operates a microswitch below the front panel.

Transmitter and receiver have separated crystals of the CR-78/U- type, four channels can be switched separately for the transmitter as well as for the receiver. The antenna is tuned with the help of a small bulb, a whisper- function can be switched on.

It can be operated in CW and AM modes, AM being not common for a spy radio. Though solid state, small and battery operated, it is no portable radio, because it uses wire antennas.

Frequency range:

 

Channel 1:  3.0 ... 3.9 MHz

Channel 2:  3.8 ... 4.9 MHz

Channel 3:  4.8 ... 6.3 MHz

Channel 4:  6.2 ... 8.0 MHz

AN/PRC-64

was developed from the DELCO 5300 A for the US Army. Except the frequency range, the technical data are the same as the data of the DELCO 5300 A.

It works from 2.2 ... 6.0 MHz

It was developed in the USA, but was used in great numbers by Australia and its allies during the Vietnam War period.

All PRC-64 are said to be modified to the improved model PRC-64A (for use of a burst code keyer GRA-71), but unmodified radios still can be found.

Frequency range:

 

Channel 1:  2.2 ... 2.85 MHz

Channel 2:  2.8 ... 3.65 MHz

Channel 3:  3.6 ... 4.7 MHz

Channel 4:  4.6 ... 6.0 MHz

Visible differences (also see the Picture gallery):

	Delco 5300 [<= click]	AN-PRC-64 [click =>]