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Everyone knows the shape of this "Banana" You may mistake it for PRC-6 and PRC-6/6, operated with tubes.
This version is fully transistorized. A new channel is chosen by replacement of a crystal and tuning, like the PRC-6. The modules, too, look similar to PRC-6. There also is only one channel.
This radio was built by Telemit for former friendly states, and never was used in the NATO.
The "bananas" in the collection
Comparison PRC-6, PRC-6/6, PRC-6T, PRC-6T/180