1959 AMC TR-600 (Hitachi TH-621)
Shirt pocket radio, thermoplastic cabinet
4 1/2 x 2 7/8 x 1 5/16 inches / 114 x 73 x 33 mm
Six transistors (Hitachi, 2N215, 2x 2N217, 2x 2N218, 2N219, + 1N34A diode)
One 9-volt battery
Manufactured by Hitachi Ltd., Tokyo
(Chassis manufactured by Standard Radio Co. for Hitachi)
This is a Hitachi TH-621 OEM radio produced under the AMC brand — the example shown here was assembled around mid-1959, according to its electrolytics' date stamps, but it's unclear how early AMC first released this model. The transistors here are the same as found in the Hitachi TH-621, but the Hitachi's 1N34A glass diode has been replaced here with a 1N34A ceramic diode.
The AMC TR-600 has exactly the same cabinet, chassis and transistor complement as the gray Hitachi TH-621 shown here on another page. The AMC also seems to be the only Hitachi TH-621 that had a black cabinet, and as far as I know there were no AMC TR-600s made in any color other than black.