"Andrew Catanzaro" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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I have recently gotten a Drake B-line operational and am very happy with it.
The R-4B is a fantastic receiver. I have built two Norcal DDS VFO's to
replace the PTO's and it's great having frequency resolution to the last Hz
and no drift.
A friend with good ears and who lives close by told me that there is an
irregularity on my CW note. People far away tell me my note is fine. I
took a separate receiver and used only a dummy load on the transmitter and a
dummy load on the receiver so it would not be overloaded. I can hear the
raspiness or burble. It's like a fine modulation on an otherwise great CW
note. Going back to the original Drake PTO does not fix the problem. It
sounds exactly the same. I swapped out all the tubes for NOS, and there was
no change. I am using an AC-3 power supply with the original caps. There
is nothing that sounds like AC hum on the signal. Is this a normal
observation of the T-4XB's CW note or is there something wrong? Except for
my friend four miles away, and my own observations, all comments on the
Drake's signal have been unqualified positive remarks.
I listen to my K2's CW note in the same test receiver with the same dummy
loads and the K2's note is absolutely pure.
Any comments or suggestions greatly appreciated!
73,
Andy W9NJY
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