Yes, for neutralizing tubes. That goes back the early part of the 20th century. ;-)
73, Mike W0BTU On Tue, Jan 14, 2020, 1:54 PM Lee STRAHAN <k7...@msn.com> wrote: > Yes, somewhat common in the "hollow state" device days (Tubes). > Old also Wayne. > > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
