[R-390] R-1051

[Walter Schulz]

Gentleman;
Some thoughts about the R-1051 from ex RM who served in the mid 1960's. In radio central onboard essex class aircraft we had a number R-1051's beside the R-390A's. We used the R-1051 for ISB or USB and LSB to receive MUX (Multiplex) radioteletype. The R-1051 was very stable but was always failing due to heat, the heat in the radio room was always about 90 to 100 degrees F with A/C running.

The transistors could not take the constant temperature off Vietnam. The receivers keep failing daily where the R-390A's kept working. R-390A was good on SSB without the adapter when receiving MUX. Also they were excellent for receiving regular radioteletype transmission with 850 cycles shift.

The R-1051 is knob twister delight and far as I am concerned it should be deep six. However, when it is working its good. It either good or darn bad....so much for my opinion....which stems back to my days in radio central of yesterday years.

Rgds,
Walter