[Premium-Rx] ROM or EPROM losing its content

[Steve Pappin]

I have most of the 8617B and (S1) firmware. I would be happy to store other 
versions for WJ gear.

Best Regards,
Steve

----- Original Message ----- 
From: "Heinz Breuer" <hbreuer at debitel.net>
To: <premium-rx at mailman.qth.net>
Sent: Sunday, August 05, 2012 9:33 AM
Subject: [Premium-Rx] ROM or EPROM losing its content


> Hello,
> by definition a premium RX has a microprocessor which controls the
> operation. I wonder if anybody already started to collect the firmware.
>
> Not with any of my receivers but with other gear I occasionally noticed
> that an EPROM had lost a Bit or two after 30 years. Maybe it was not
> fully programmed to start with or any other failure. This may also
> happen to a ROM if something went wrong during production.
>
> I guess it is time to collect ROM and EPROM firmware before it is too
> late. All what is needed is a known good ROM or EPROM and an EPROM
> programmer with a PC interface. Just read out the ROM or EPROM and store
> it onto a harddisk or better two. Maybe even burn a couple EPROMs.
> Any volunteers within our community?
> vy 73 Heinz DH2FA, KM5VT
>
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