: 18.92 MB
A chip such as the HA7210 can easily be used to implement a very simple QRP
transmitter for 160, 80, or 40 meters as shown in fig. 2. ... Going a step further by
using a surface-mount transistor, surface-mount crystal (Digi-Key CSM-7 series),
a couple of hearing-aid or watch batteries, and some construction skill will result
in a transmitter that can be hidden almost anywhere
. ... 73, Irwin, WA2NDM hy-
Call For prices I 4& 1 -800-244-4567 "Better than a hamfest!