03-30-2013, 11:46 AM
I have the first one, it is I think 121.
It is my impression that the schematics I have are for 118 and 124. The first one does not explicitly say it, it just says "Model 18".
So when I saw the discrepancies in the volume control circuit and someone here suggested it was 124, I checked that same circuit and it was the same as mine, so I decided it was 124. What I have been oblivious to all this time is the fact that it does have the band switch and 124 does not.
Also the resistor across the shadograph - mine does not have it and 124 does.
I will have to look for the sch for 118, I guess, although the differences are minor when it comes to the circuitry - seems like the same tubes, and more or less the same parts' positioning - so far I successfully used 124 chassis pics and sch.
Q: am I expected to hear anything on the 1.5 - 4.0Mc band?
It is my impression that the schematics I have are for 118 and 124. The first one does not explicitly say it, it just says "Model 18".
So when I saw the discrepancies in the volume control circuit and someone here suggested it was 124, I checked that same circuit and it was the same as mine, so I decided it was 124. What I have been oblivious to all this time is the fact that it does have the band switch and 124 does not.
Also the resistor across the shadograph - mine does not have it and 124 does.
I will have to look for the sch for 118, I guess, although the differences are minor when it comes to the circuitry - seems like the same tubes, and more or less the same parts' positioning - so far I successfully used 124 chassis pics and sch.
Q: am I expected to hear anything on the 1.5 - 4.0Mc band?
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