[Heath] Heathkit Dials

[pmarkavage at juno.com]

The first question that comes to my mind, without researching the "SB
model" dial part numbers, are all "SB" dials (receivers, transmitters,
transceivers) the same (markings, size, mounting, etc.)?

Pete, wa2cwa

On Sat, 19 Jan 2013 12:40:04 -0500 <wa6mhz at cox.net> writes:
> 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