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 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.