Daiwa DK-200 - Operation Details; Monitor Speaker and DC Socket; Keying Output Ports; Side-tone Frequency Adjustment

9. Monitor Speaker: For side-Tone reproduction.
10. DC socket Connect the DC plug supplied to a regulated power supply according to the
fig. 1. Insert the DC plug to the DC socket.
11. Keying output GRID BLOCK: The GRID BLOCK keying output can key negative 100 V
(10 mA max.) to ground. This output can key all transceivers
with GRID BLOCK keying circuits.
12. Keying output DIRECT: The DIRECT keying output can key 300 V (100 mA max.) to
ground.
13. Side-tone frequency trimpot: Frequency of oscillator can be adjusted between 500 and
3000 Hz.