[Heath] Heathkit Dials

[wa6mhz at cox.net]

the Achilles heel of the SB dials is the metal plate (used to rotate the dial through the friction discs) that has tabs that extend
into the plastic.  These tabs exert a constant pressure on the plastic, which, with age, finally gives way.  So it was a flawed design
to begin with.  But most worked for 30 or 40  years before they cracked.  A redesign should account for this; and be manufactured in
a way that won't stress the plastic.
--
Pat Bunsold WA6MHZ
Curator
Crest Radio Museum