AM-3D is a rig released in June 1971. A portable machine with a weight of 3.7 Kg, 6 m, AM, FM machine, and the final stage is 2SC776 * 1 with 1 W output. The price was 32500 yen.
There is a memory that I wanted to be very heavy because the Single battery SUM-1*9 specification.
On my graduation trip to junior high school, I took it to move operation in 6 areas.
This machine was purchased at Yafuoku around 2012.