FS: Collins 800 Cycle Mechanical Filter for HRO
mc at SOVER.NET
Mon Jun 5 16:12:13 EDT 2000
This is a very rare item.....
This is a Mechanical Filter Plug In Adapter for the National HRO 50/60
series receivers. It plugs in place of a 6K7 tube. The bandwidth is 800
cycles which makes it ideal for CW, Markings read:
522 9060 004.
I do not own a HRO50 or 60 nor do I plan on acquiring one so this item is
of no practical use to me.
Any swaps will be entertained or I will be willing to discuss selling it.
Please reply by e-mail if interested.
Michael Crestohl, W1RC
mc at sover.net
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