04-23-2016, 06:53 PM
Seems like I read somewhere that the std was only made for the first 6 months of production. There are a few different version of these sets (37-116 delux). Early ones have push pins to connect the spkr. Later have a socket/plug. Most have 6B4 tubes but the very late ones have 6A5G and the later ones a different LO circuit, less trimmers.
Terry
Terry