The VHF Wattmeter HM-2102 was produced from 1973 till 1981 as a kit. Frequency range: 50 - 160 MHz, power range: 25 / 250 W or SWR.
This old 51 Ω resistor was out of tolerance
HM-2102 Circuit board assembly
This kit was produced in 1973 but got assembled first in 2020. Some resistors got out of tolerance and had to be replaced. The so-called "UHF" SO-239 connectors have been replaced with suitable N-connectors.
HM-2102 metal chassis
Replacement of SO-239 with N-connectors
The directional coupler can be placed either remote or inside the wattmeter
This potentiometer had no contact between the wiper and the resistive element and had to be fixed
Heathkit HM-2102 wattmeter with a 2-meter band Semco-Terzo transceiver from the 70s.
