06-24-2013, 08:33 PM
Question:
I have the sch for codes 121/122.
My Philco has some discrepancies, the first being using 6A5 as the output tubes.
Now while recapping (and I am far from being done) and at the same time checking the resistors where I can I noticed that the resistor 103 (70K) has some other resistor going to Ground that is not there on the sch. The resistor connects where the 103 attaches to the cap 104 (8nF); it is probably the tone control circuit. The value seems to be high and there is that green band in the middle that tells me that it should be high. The circuit is such that I do not expect it to make much of a difference but still would like to know if it is present in some other modifications.
I have the sch for codes 121/122.
My Philco has some discrepancies, the first being using 6A5 as the output tubes.
Now while recapping (and I am far from being done) and at the same time checking the resistors where I can I noticed that the resistor 103 (70K) has some other resistor going to Ground that is not there on the sch. The resistor connects where the 103 attaches to the cap 104 (8nF); it is probably the tone control circuit. The value seems to be high and there is that green band in the middle that tells me that it should be high. The circuit is such that I do not expect it to make much of a difference but still would like to know if it is present in some other modifications.
