[dconant]

Hi Rod,

The resistor connects to pin 4 and the ungrounded side of block 9. From pin 9 of the RF tube to one side of the switch, from the other side of the switch to block 9 and then to pin 4 of the IF tube. It seems to me the resistor is in parallel with the wire. With the switch off the resistor is in circuit and when off it is not. So with the switch in one position the two pin 4 connections are directly connected and the other way they connect through the resistor. If what you say is correct then where is the B+ coming from? I just realized pin 4 of the RF tube connects to block 27. Parts list says this is a .01 cap but the block has two caps or one cap and resistor in there as all three connection points used. I don't find another 27 on the schematic.