• Manufacturer : Clapp - Eastham - RADAK

• Type : R3

• Produced : 1922 - U. S. A.

• Frequency range : MW

• Receiving mode : audion - regenerative

• Tubes : UX201A Sylvania

• Speaker, phones : high impedance earphones,

• Power supply : A, B battery 

• Receiving estimation (1-10) : 8

• Global estimation (1-10) : 9

• Specials : needs long wire antenna (>100 ft.) and ground

      - tube UX201A works better - a gradient is much higher as an earlier 01A

      - the main coil is wounded with cotton covered wire

      - built in one of the first "planetary" drives under the tuning knobs

      - upper side identify tag on the wooden cover is cut off - it was done

        authentic by RADAK !

• Note : very early and rare model made by RADAK