[R-390] no vendor tag: any way to ID vendor?

[Cecil]

It can usually be identified by markings on the rear panel.  On the Collins modules you may notice a stamping that is a square with a bird....that was used by Collins. If there is one of those on the rear panel it's a pretty good bet it was built by Collins.

Cecil
K5DL

Sent from my iPad

On Jun 24, 2013, at 9:45 PM, Kevin McGrath <kj_mcgrath at yahoo.com> wrote:

> I recently acquired an R390A with no vendor tag. Is there any way to ID the vendor (Collins, EAC, Motorola...) by looking at small differences in the build, lettering or rear panel and the like? 
> 
> 
> The PTO is Collins as is the tag on the power supply module. The panel is not engraved.
> 
> Thanks, 
> 
> Kevin.
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