[ARC5] TN 1B/APR-1 and TN 2B/APR-1 Military Radio Tuners

[Robert Eleazer]

According to an impeccable reference source - the G&G catalog from the mid-70's - the TN-1 covers the same range as the TN-16, 38-95 MHZ, and the TN-2 the same as the TN-17, 74-320 MHZ and both are interchangeable in the APR-4.

The TN-3 is the same as the TN-18, 300-1000 MHZ..  The TN-19 covers 975 to 2200 MHZ. The TN-54 is the one that covers 2200 MHZ to 4000 MHZ if you want that range.

Apparently the APR-1 was virtually the same set but only had tuning units for 38 to 1000 MHZ.

Wayne