CR-2
CR-2 receiver, possibly modified
MAK's Old Radio Pages
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2004 All rights reserved; updated Apr 24, 2004
CR-2
CR-2 receiver, possibly modified
CR-5
RORK
The CR-5 was a single tube regenerative receiver.
A companion 2-tube RORK audio amplifier (and other amplifier options)
were available to allow the CR-5 (or other similar sets)
to be used with a (horn) speaker.
CR-9
CR-9 Inside
The CR-9 integrated the capabilities of a CR-5
and a RORK amplifier, forming a complete 3-tube receiver.
Note the recess in the hinged lid (upper right corner).
This allowed for the additional height of earlier "tipped" tubes.
MU-1 Synchrophase
MU-1 Inside
The MU-1 Synchrophase was a neutrodyne (neutralized TRF) set
representing a departure from the regenerative CR series.
Earlier Synchrophase sets used 3 completely independent tuned stages.
The later version included selectable mechanical coupling of the 3 tuners,
implemented through a chain drive mechanism. Clutches on the outside
tuners allowed them to be mechanically coupled to the center tuning
capacitor, or decoupled for fully independent tuning.
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