Dave,
I have S/N 525 00042. I am guessing it was from one of the first few
runs but have never called to check that. My S/N is stuck vertically on
the back between the cooling fin panel and the phono jacks. My RF &
IF/AF boards are plain numbers, no A or B versions. In the FWIW dept. I
have a 8122 filter on the RF board and 219 on the if Board. Are there
any stamps on hte chassis that may help dating?
Don't know if that helps but I am happy to answer any other questions
you might have.
John / WA1JG
David Feldman wrote:
> Have a use 525 Argosy that doesn't have (maybe never had?) serial number on
> back panel (could it be inside instead)? Trying to figure out whether it
> would use the 223 NB (for SN < 825) or 223A (for SN > 825). Any other way to
> determine which version, perhaps based on type number of the internal PC
> board that hosts the NB connections (the 80784 RF/MIXER board; my 525 80784
> board is labeled "REV B")?
>
> 73 Dave WB0GAZ wb0gaz@yahoo.com
>
>
>
>
>
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