Dave,
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Thanks! The serial number for the one I have on the bench is in the 7G 110xxx range. I believe that decodes to May of 1977.
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This morning, I installed the NB Unit from one of my other '301. Wow - what a difference! The transmit audio now fits with my definition of 'nice':-) The bandwidth of the transmitted signal has broadened nicely and properly fills out the 2.4 kHz nominal at RF. The response looks balanced across the passband - way better when compared with the peaky / restricted response when using the other board. The audio sounds better with the RF Processor switched in too - very similar response, just 'louder' on my check receiver.
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I suggest you just include your alignment info. in an post in reply to this one - either as text, or copy and paste it in, or attach it as a file (paper clip icon in the toolbar above the box where you compose your message, if you compose your messages while on the website. If you just send e-mails, then send it to those addresses you have already replied to.
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Weather is getting warmer here over the next dew days, which is nice for walking, but more wind and rain too, which is less good. Enjoy your pint - cheers!
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Regards,
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Mark, G4FPH.
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