[R-390] 390A Drawings, was Engraved front panels

[Tom M.]

As far as the 390A goes, the revision from silk screened to engraved is on the
drawings I believe.

I think most were actually stamped, not engraved, but the Fowler rigs were
engraved with a rotary tool.


Tom N5OFF
--- federico <1.baldi@www.dottorbaldi.it> wrote:
> I agree with Ed, also in the Viappiani book on R-390 & R-390A is written that
> 
> mostly of the R-390 were silk screened instead of R-390A that have engraved 
> front panels except for the rigs manufactured from Motorola (silk-screened). 
> Federico IZ1FID
> 
> On Thu, 6 Mar 2003 22:19:52 EST, Aidehua wrote
> > To my knowledge, all of the R-390 (non A) were silk-screened 
> > (Collins/Motorola).  Even the early R390A's were silk-screened 
> > 
> > (Collins/Motorola).  I think the engraving started with Capehart,
> >  Imperial or Stewart Warner in the late 50's.  Hence forth, they 
> > were all engraved....That's my story and I'm sticking to it...
> > 
> > 73,
> > Ed NI6S
> > 
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