[HBR] 7360 mod schematics?

Tim Shoppa tshoppa at wmata.com
Mon Mar 24 08:00:44 EST 2008


Many folks have written about 7360 mixer mods for HBR's. Are schematics up on the web
anywhere? I have most of the late 50's and 60's QST's at my fingertips but
haven't located an actual schematic yet.

The obvious-to-me way to incorporate it is to feed the LO at a very large
amplitude and in a balanced way into the deflector beam plates and the
RF into the grid, but past comments here indicate that others did the
7360 mod while still keeping the very-low-capacitance gimmick from the
HBR-16's LO - presumably feeding LO into the grid while sending the RF
into the detector plates?

Tim N3QE



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