07-01-2023, 01:30 PM
I finished my 40-145 re-cap (and a the bad resistors), and it fires up good (isolated, slow up on the AC, no smoke, tubes good). Still trouble shooting a few things, like the $%^&* push buttons. Just very dirty, I think. I know to use the manual "tune" button.
Question: When I looked at the Rider alignment instructions, the RF alignment calls for an "Alignment Adapter". The unit is Loctal tubes. I happen to have a "Thru" Loctal adapter from - somewhere, no markings. Anyone have any info on what the Philco "Alignment Adapter" hook-up is? Mine has these, but I'm willing to modify it:
Black wire: to pin 4 of the 1232/7G7 (RF) TUBE only, not thru to the receiver socket.
White Wire: to pin 2 of the Receiver socket ONLY (not thru to the tube). It's loose, so needs repair anyway.
Green wire: to pin 2 of the TUBE only (not thru to the receiver).
White and green wires in series with an ammeter would be handy for measuring plate current on the 1232/7G7 (and many other Loctal tubes).
That makes no sense for the way it is called out on the alignment instructions. BTW: the black wire would be to the G3 (suppressor) of the tube (pentode).
The alignment instructions also call for it's use in on the 7C6 second detector for A.V.C. measurement.
I can probably noodle it out, but I'd rather not fry something (the 1232/7G7 is already low performing!).
Anyone got one of these little puppies? And can advise the pin outs. Or recommend some? (data attached)
Question: When I looked at the Rider alignment instructions, the RF alignment calls for an "Alignment Adapter". The unit is Loctal tubes. I happen to have a "Thru" Loctal adapter from - somewhere, no markings. Anyone have any info on what the Philco "Alignment Adapter" hook-up is? Mine has these, but I'm willing to modify it:
Black wire: to pin 4 of the 1232/7G7 (RF) TUBE only, not thru to the receiver socket.
White Wire: to pin 2 of the Receiver socket ONLY (not thru to the tube). It's loose, so needs repair anyway.
Green wire: to pin 2 of the TUBE only (not thru to the receiver).
White and green wires in series with an ammeter would be handy for measuring plate current on the 1232/7G7 (and many other Loctal tubes).
That makes no sense for the way it is called out on the alignment instructions. BTW: the black wire would be to the G3 (suppressor) of the tube (pentode).
The alignment instructions also call for it's use in on the 7C6 second detector for A.V.C. measurement.
I can probably noodle it out, but I'd rather not fry something (the 1232/7G7 is already low performing!).
Anyone got one of these little puppies? And can advise the pin outs. Or recommend some? (data attached)
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