Description
If you're not interested in listening to shortwave on your AWA 525-M receiver, then you can REPLACE the standard 6J8G with a 6A8G for better reception on the Broadcast Band.
(I found a 6A8G being used as the mixer/oscillator tube in an old AWA 512M.... plugged it into my AWA 525-M, and found that the signal was very marginally better on the broadcast band).
According to the sticker inside the cabinet of the 512-M, the 6A8G is the CORRECT tube for this receiver.
It's worth noting that the AWA ''500 Series'' broadcast band only receivers all use the 6A8G as the ''converter'' (mixer/oscillator) tube.
t should be noted that this receiver does NOT employ a separate RF amplifier stage, and as a consequence, the sensitivity on reception is only in the vicinity of 10 to 50 μV. As a comparison, a well designed communications receiver of that era had a much improved sensitivity of around 1 to 5 μV. (microvolts) due to the addition of a separate Radio Frequency Amplifier stage.
If you're located a long distance from the transmitter(s), the poor sensitivity of this receiver will result in ''background noise'' when you attempt to tune in the station....or...you may not even be able to hear the station !