Many thanks to SWLing Post contributor, Dan Robinson, who notes:
The amazing streak of rare radios, never before seen on Ebay or rarely seen there, continues, with the appearance of this Nems-Clarke 1510A receiver.
I attempted to find this radio in the Osterman guide to no avail — it’s not in there, unless I missed it. There are a few informational pages about Nems Clarke on the Internet (see below):
I am currently restoring a similar receiver I recently purchased on eBay For about $100.00. This is my second Nems Clark receiver. I got first as a teenager about 1964; which I used as my amateur 2 meter receiver for many years.
The name plate on my receiver says it is a Model 1501 which may be slightly different than yours. It is a true laboratory grade receiver manufactured I’m late 1950s or early 1960s
What unique about this receiver is it can tune 50 to over 260 MHz (then MC) using a special spiral induct tuner. The receiver is a single conversion design having a wide IF bandwidth which limits the RF sensitivity but provides a video output. The post detection bandwidth is selectable from 1 kc to 300 kc in several steps. The IF has both AM or FM detection with the wideband video output.
While there better and substantially sport receivers now available, this receiver made good bench unit for radar, and telemetry research.
Once I have restored my receiver I will take quantitative performance measurement on my unit. I welcome you to stay in touch to share any additional information.
Respectfully yours,
Stephen J. Uurtamo
,Sr. Principal RF Systems Engineer, retired
WA4LDL
The reason it isn’t in Fred Osterman’s book, is because it isn’t a general coverage “communications receiver.” There are hundreds of Nems Clarke receivers out there, but they are limited in popularity by the reception frequencies, or the lack of…..