HW-100 Vs 101

[Ed Mosher]

Actually, the main differences were in the VFO drive mechanics.  The
HW-100 used a "Harmonic" drive, which consisted of a concentric plastic
spline being driven by the main tuning dial. It offered about a 12:1
tuning ratio for the tuning cap.  The HW-101 used the "Jackson"
mechanical vernier drives, two in series at 6:1 each, for a 36:1 ratio.
Made it much easier to tune.  There were other less noticeable mods as
well, but the drive was the major change.

Ed Mosher
WA8ZVO at JUNO.COM         Formerly  "One of the Hams at Heath"
   "Corporations make decisions based on dollars, not SENSE!"

--- --- --- --- --- --- --- --- --- --- --- --- --- --
To subscribe: listserv at listserv.tempe.gov
and in body: subscribe HEATH yourfirstname yourlastname
To unsubscribe:  listserv at listserv.tempe.gov
and in body: signoff HEATH
Archives for HEATH: http://www.tempe.gov/archives
--- --- --- --- --- --- --- --- --- --- --- --- --- --