The page author has invented the following devices. They are sorted by category:
Any roach that get in goes nuts and dies in a day or two.
Powder is added to the under-baseboard spaces every decade or so.
Only one glitch: A repairman thought rolled-up Hershey Kiss wrappers were roach egg cases.
The positions on the lever (left to right) are:
This was possible because the PE Command lever was made for the PE-2018, which used the change-cycle cam for cuing. The unused CUE position was blocked off by a plastic insert on PE-2038. The page author removed the insert and added a piano-wire spring that moves the switch lever to the play position when the command lever is in the REPET position. This repeats the record.
The page author replaced a 20-watt halogen bulb with a 5-watt LED with a lumen output of a 50 watt bulb.
The results were very good. The case does not get hot, and the display is brighter.
Put a 1.5 amp fuse in series with the transformer output to protect it if the LED shorts when it burns out.
The page author learned this the hard way.
Instead of the fuse, connect a 60 watt 120 v bulb in series with the lamp socket. It should glow only if the LED burns out.
The launch igniter is almost a dead short across the battery.
Firing the rocket cut the equipment power (from the same battery), so it had to restart.