Hello- I have never been able to play with and examine a Drake SW-4A until recently. I am glad I was able to add one to my Drake line-up here. I was curious if anyone knew the percentages of the selectivity of this receiver as determined at the 5645 KC crystal filter or in the 455 KC IF? I was looking at the JW Miller 455 KC IF transformers used in the set. I have some in the same Miller line that are a little more selective. I realize that there would probably be a slight gain reduction with them. The receiver does seem a little broad even for an AM set. Another thing is the ACC socket. What accessory was used at this socket? Thanks, Byron WA5THJ
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