Heathkits were great. I assembled a number of them for my stepfather and for myself. My favorite was the multi-band short wave radio receiver which I used to listen to sputnik.

A neighbor enlisted by stepfather's aid in troubleshooting a color TV kit he had assembled. I remember the workmanship was picture perfect, matching the photos in the assembly manual exactly. But turning on the power did nothing. A bit of investigation turned up the reason. The entire kit had been constructed using Liquid Solder, construction adhesive most often used to bond metal and other strong materials such as concrete--and a non-conductor of electicity..