[Premium-Rx] Racal RA6778 firmware listing needed, andeprom longevity...

[Karl-Arne Markström]

Hmm...

Looking at the WJ-8940B data sheet, it can be seen that the receiver proper
is separated from the control unit.

If this qualifies as an early Prem-Rx, then a node in the Standard Radio ARTRAC prototype 
system from 1973 also must qualify, as it consisted of one or two SRT CR302A ISB diversity receivers, one CTD500 exciter + SSA400 PA, all controlled from an Alpha/LSI 
16-bit minicomputer with 32 kword core memory.
The system was contained in a 6' 19" rack.

73/

Karl-Arne
SM0AOM





----- Original Message ----- 
From: "John P Ceresole" <veloce at tcp.co.uk>
To: <premium-rx at ml.skirrow.org>
Sent: Tuesday, May 10, 2005 7:32 PM
Subject: [Premium-Rx] Racal RA6778 firmware listing needed, andeprom longevity...


> Hi List
> 
> Dan Rae seems to think that "I recently bought one of these interesting 
> receivers, which incidentally, must qualify as one of the earliest, if not 
> the earliest Premium Rx, (Vintage late 1978) only to discover that it has 
> lost one of the firmware eprom contents, and is thus totally dead, in other 
> words an ex-radio."
> 
> The WJ-8940B designed circa 1975 uses a DEC PDP-K11F as it's controller and 
> who knows what other Rxs lurk out there that may have been designed before 
> that (The WJ 8940B originally used magnetic core store for volatile values 
> the later models used SRAM + EEPROM - 1984)
> 
> Best regards to all
> 
> John G8BSD 
> 
> 
> _______________________________________________
> 
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> To Post: premium-rx at ml.skirrow.org
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> 
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