HW-16 and HG-10. This so-called transceiver is actually a receiver and transmitter in the same box. They share a common power supply and are integrated with a reasonable QSK. When novices of the sixties often had separate receiver and transmitters, and often used a toggle switch when they could not afford or find a transfer relay - an almost seamless transceiver was a major advance. Well except that the transmit vfo is remote and needs to be separately spotted on the receive frequency. As the receiver was designed for CW it has a reasonable CW filter - in fact a real nice one compared to what was provided in lower end ham receivers such as the HR-10. This is my second rig as it was purchased used at a hamfest in York PA when I was a college student on work assignment away from home. I remember at this hamfest picking up this rig, a couple crystals, a key and a small antenna tuner - enough to get on the air.
Later I obtained the HG-10 VFO. It is likely older than the HW-16 as it has a smooth finish (instead of the matted finish on the HW-16). It came with a BNC connector and had a test equipment calibration tag on it - making me think it was in a lab but used to repair ham gear during spare time. Hence the calibration tag was a diversion to keep it in whatever lab it was in. Finally the vintage Heath keyer was found to complete the station. I really need to modify it to allow a modern paddle to be used with it!
After much dis-use I discovered the HW-16 had a chirp and it was finally abandoned to my junk pile. Then one year I decided it had to be trashed, given away or fixed. I opted for the latter. After fixing it I took it to a club meeting to show off. Then when I used it at home - funny smell and then a little smoke. Correct answer is turn off the rig. But instead I decided to poke my head to the back to see what was going on - pow! A small explosion and a little fire in the midst of a QSO. OK the fire was the size of a birthday candle but it was real and the entire house had to be aired out. The remnant of the capacitor is shown below. Also the explanation that when I installed new caps I used 35 mm film containers to house them in similar fashion to the originals on the top of the chassis. In my restoration other caps are down below.
Those of us first licensed when they still made rigs whose devices glowed in the dark are sometimes drawn back to using these relics.