why the demise of the Versatronic
I am going to add my own speculations as to why GE quite making the Versatronic range based on my family's owning one.
My dad purchased one replacing our Tappan Fabulous 400 range in November 1974, along with an Americana side by side with ice and water in the door, in Avocado green. The year before he had bought a General electric Potscrubber and became a GE fan. Who wouldn't having replacing a Modern Maid dishwasher with a GE.
The only difference in our oven with the one pictured above is it was a "high-low" model that also had a conventional oven on top.
There was really no issue with difficulty learning to operate it. I don't think anyone in the family ever looked at the instruction manual, but me. To use the microwave capability you just turned the timer knob. Period. No power control, nothing. You just rotated the timer knob. You wanted conventional oven with it. you just turned on the conventional oven.
Much simpler than todays electronic ovens. One knob for microwave. You just turned t to the time you wanted. If a four year old had a stool to reach the controls, they could operate it. I am sure the simplicity of operating it was a selling point.
I think the biggest downside was the cost. I don't remember exactly what my dad paid, but he did comment on the expense. I think it was in the $600+ range. In 1974 dollars that was a fairly high price for a stove.
Most people didn't want to replace their stoves, back then, to get microwave capability, so they bought countertops.
The upside of the oven was it was full sized and you could get a gigantic turkey in there.
The downside, it was slower than most countertop MW units, because of the oven cavity size. We had at least four repairs, under warranty, to the antenna line, which keep burning and arcing, that went from the magnetron to the antenna. There was actually a visible antenna coming up from the bottom center of the oven. It was a little metal disc on a ceramic insulator post.
My dad had bought an extended warranty from GE. If I remember correctly after several years they discontinued offering the contract on that model as, they said, parts were no longer available. My parents keep the range, but bought a countertop microwave, everything else on the stove kept working fine.
The oven was self-cleaning which was nice when there was a spill over or sausage explosion, etc.
But the bottom line was the MW part of the oven was slow and repair prone. My moved loved it otherwise. It baked very evenly and had a built in exhaust fan. It was a good looking appliance, even if it was Avocado green. Believe it or not it seemed like a nice color back then.
My speculation is that GE was losing money on the in warranty repairs. The General Electric repairman said they had many problems with the conventional/mw units.
Shortly after my parents bought their Versatronic, GE did away with the regular sized conventional oven with MW capability in the bottom and went to their "high-low" Versatronic unit having a conventional microwave replacing the top oven.