[Boatanchors] Special Boatanchors: Pro-310, SX-88, R-1230, etc.

[Randy and Sherry Guttery]

From: "HL" <zbyte at comcast.net>
>> Interesting discussion regarding these ultimate HF receivers.
>>
>> Years ago, I acquired a small group of photos of a fascinating Sylvania HF
>> receiver, which, I am guessing, never
>> made it past the prototype stage.  Any information would be appreciated.
>>
Interesting indeed.  Radio seemed familiar somehow - took a 
few minutes - then it finally hit me...   shares several 
things in common with what eventually became the R-1051 
series...     There were many "wild" radios between the 390 
and the 1051- many just modified civilian sets (like the 
Hammerlund SP-600 -> R-274B - & SP-600 -> R-450) and several 
"wanna bees" like the GE XSDR-1 which was to become the 
FRR-48 for the Navy - but never made it past prototype.

Back to this Sylvania...  there were several "requests" from 
the military during the 60s for radios of various types - 
often somewhat exotic (such as synchronous detectors, 
synthesized local osc., etc.) so several designs came and 
went.  The era of the "chain drives" such as this receiver, 
1051s, etc. were one result - monsters like the WRR-2 
another.  Sylvania didn't give up when this unit didn't make 
the cut - they had another radio - the R-1414 that saw some 
service.

ICs paved the way for the processor controlled recievers 
like the Racals, WJs, Harris - and so on.


-- 
randy guttery

A Tender Tale - a page dedicated to those Ships and Crews
so vital to the United States Silent Service:
http://tendertale.com