Hi again Mike - altough a number of 1930's National receivers used the
moving catcomb coil assembly, only the NC-200 and NC-240 had the unique
arrangement where you pull out the main tuning knob to change bands. The
moving catacomb coil assembly was a James Millen design which first
appeared in the NC-101X around 1936 I believe. Although the HRO was very
popular with it's plug-in coils, National did have bandswitched
receivers at the same time as well with the NC-101 series which were ham
band only and the general coverage NC-100 Art Deco.
I own a whole bunch of these receivers so I am quite familiar with them.
I have several NC-101's, NC-100ASD, NC-100 Art Deco, RAO-7, RCE and an
NC-200. They are all very good receivers for their time, work well and
are extremely well made.
The NC-200 or NC-240 is a nice and very well made receiver. Enjoy it if
you have one
Dave N7RK
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Dave N7RK Boatanchors Home Page: http://members.cox.net/n7rk
Phoenix, Arizona *DXCC Honor Roll* *WAZ#22 - 75 Meter SSB*
ex-XE2/N7RK, N7RK/ZB2, VK2ERK, ZM0AJN, WB6NRK, WN6IWX
Boatanchor and Antique Radio Collector
