[Heathkit] Resitor Substition Boxes!

[Bob Macklin]

I have noticed a lot of Heath and EICO resistance and capacitance subsituion boxes on eBay.

When I strated working as a techenician in the late 50's the engineers would do all their callculations with a SLIDERULE ann the after the breadboard was working the would break put the substituion boxes and tweak the design to make it work the way it was intended to.

Do GlowBug experimenters use these things. They are cheap enough.

Bob Macklin
K5MYJ
Seattle, Wa,
"Real Radios Glow in the Dark"