07-01-2023, 07:02 PM
P.S. Tore down the adaptor, had to fix White lead anyway. Above pins correct, PLUS these inside the adaptor:
1) pins 3, 6 & 8 connected thru (tube to socket).
2) 3.0 Meg resistor pin 4 to 6
3) WORST ISSUE: pins 1 & 8 shorted! These are filament on the 1232/7G7 and many (most?) Loctals. Might be of some interest (?) on a series filament rig, but the 40-145 is transformer equipped. With no fuse in the unit (only on the bench) this could have been ugly. This "adaptor" was clearly not meant for the 40-145 or anything similar. Glad I didn't just "try it". Never measured pins 1 to 8 before tear down. Never thought to check that!
Anyone know how a Philco "alignment adaptor" is supposed t be wired? I might fix it up to that, if I can.
I think the idea was to have the tubes (two) installed in the unit, thru the adaptor, with the fancy antenna system hooked up, so you can do the RF & IF alignment that way, mostly installed in the case.
1) pins 3, 6 & 8 connected thru (tube to socket).
2) 3.0 Meg resistor pin 4 to 6
3) WORST ISSUE: pins 1 & 8 shorted! These are filament on the 1232/7G7 and many (most?) Loctals. Might be of some interest (?) on a series filament rig, but the 40-145 is transformer equipped. With no fuse in the unit (only on the bench) this could have been ugly. This "adaptor" was clearly not meant for the 40-145 or anything similar. Glad I didn't just "try it". Never measured pins 1 to 8 before tear down. Never thought to check that!
Anyone know how a Philco "alignment adaptor" is supposed t be wired? I might fix it up to that, if I can.
I think the idea was to have the tubes (two) installed in the unit, thru the adaptor, with the fancy antenna system hooked up, so you can do the RF & IF alignment that way, mostly installed in the case.
