Note
Ham Radio, Feb 1971, p. 77.
Ham Radio, Feb 1973, p. 80.
Frequency range: The load is flat through 40 MHz and usable with 10% error through 200 MHz.
Scaled 10, 100, 300 and 1000 watts at 52 ohms.
Meter is Zener protected .
The load resistor is rated 350 watts in dry air, is made of non-inductive Carborundum. As packaged in the Apollo can take up to 2KW on a ICAS basis.
A thermostatically controlled warning light adjusted to operate when the internal temperature reaches 175 degrees.
The Apollo enables a direct percentage of modulation readout on the 10 watt scale (for low powered transmitters).
Essentially a knock-off of the Waters 334.