One failing of the RA1792 is its lack of input preselector and its tendency to react
badly to very strong signals. However it does come with a low-
Two incarnations of the receive pre-
Whether active or not, this unit does afford the receiver a great deal of protection in that it contains both a fuse and a spark gap. The input can withstand a sustained e.m.f of 50V.
Gain of the unit (Incl. filter) is approximately 10dB.
Perhaps the fact that the active stage can be bypassed is an admission that the first mixer can be overloaded.
To date I have encountered two versions of the 1st mixer board. The silk-