[Premium-Rx] ROM or EPROM losing its content

[Terry O']

The Ralph E. Grimm Co. (Regco) RG-5500 was built by the same Ralph Grimm 
who founded Communication Electronics, Inc.  He started Regco after he 
was forced out of CEI a few years after WJ purchased his company.

The radio was built to compete for government contracts with the WJ-8617 
(plain, not A or B).  The prototype was not complete by the end date of 
the competition and it did not win.  It was subsequently produced only 
in small numbers.  I covered this competition in detail in the November 
2010 issue of Popular Communications.

The RG-5500 was built by Racal in Rockville, MD under contract to 
Regco.  Regco was purchased by Racal after Ralph Grimm died of a heart 
attack.

If you find a manual, I'd love to see a copy.  Most of these companies 
never slowed down long enough to get patents.  It is interesting to see 
how circuit ideas simply migrated from company to company inside the 
heads of engineers.

Terry O'




On 11/26/2012 1:29 PM, Борис Никитин wrote:
> Hello everybody in premium-rx groop,
>
> I'm a new member of the groop and first of all I would like to wish good health and my respect for everyone in that interested groop.
> One more things- English language is not my native, so if some thing's going wrong with it I'm very sorry.
>
> Recently I bought on e-Bay VHF/UHF Receiver REGCO RG-5500 really rare and very interested for me.
> It not working condition, so repair needed. I'm OK with hardware, but not so good with software...Now I started to collect
> information for repair and opinion of groop members will be very appreciated. ROM or EPROM losing content
> that is a common problem for receivers 30 years age or so? Or it happen not so often? Because RG-5500
> very rare what a chance to recover ROM/EPROM content if any? Receiver underway now to my location, so
> for me that is most important things to know...(That receiver was disign by REGCO to competite with WJ 8617)
> Best Regards for All
>
> Boris Nikitin
> UA3MCJ