[ARC5] Selectivity improvement in ARC-5 receivers - anotherquestion.

[Brian Clarke]

Hello Roy,I think you'll find it is a different Drake.73 de Brian,
VK2GCE. 

OnTue, 3 Jun 2014 17:56:58 -0400, Roy averred:

 The R. L. Drake Company began by building filters, I learned from
their website.*

 I have a NIB RF F-15/U filter.
 - about 76 mc cutoff frequency
 - built like the tanks it was meant to be used against
 - added to a tank jamming system, the purpose of which was to disrupt
German tank communication
 - has very robust coils and mica-sheet inter-section capacitors
 - further info at: http://www.drakemuseum.com/f15u.htm

 * http://www.rldrake.com/about-history.php
 "R.L. Drake was founded in 1943 by Robert L. Drake, a young engineer
with a significant background in radio design for major industry
concerns. The company began as a manufacturer of low pass and high
pass filters for the government and amateur radio market. After World
War II, the company applied its engineering expertise to the consumer
market and started producing amateur or "ham" radio transmitters and
receivers.
 …”

 Roy

 Roy Morgan
 RoyMorgan at alum.mit.edu
 K1LKY Since 1958

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