An ICOM IC-706MKIIG came in with the owner wanting the MARS CAP modification done on it so that he can transmit on 60 Meter band. The mod is fairly simple, but involves removing a TINY surface mount component which is about the size of the ball in the tip of a ballpoint pen. The mod […]
Month: February 2018
Helper Instruments PS 250 Power Supply Repair
I finally got around to testing this Helper Instruments PS 250 Power Supply which was among some items given to me by a client. With the power supply set for 5 Volts DC output, the ripple was outrageous. Helper Instruments sold out to Zetron Corporation many moons ago, and this power supply hasn’t been in […]