copied from packet:
 Msg# TSF  Size #Rd Date/Time MsgID        From   To
 8126 BF    676   0 1031/1621 8775_WA2SNA  WM8J   ALL@ALLBBS
 Sb: ARGOSY2.MOD.MOD

    IN A PAST BULLETIN I TOLD OF A MOD TO ADD THE SPOT FEATURE OF THE
    CORSAIR 2 TO THE ARGOSY 2 USING A MOMENTARY N/O SWITCH AND SOME
    WIRE. WELL WITH THAT MOD, WHEN THE SWITCH IS PRESSED IF YOU GO KEY
    DOWN YOU'LL HAVE THE "T" VOLTAGE APPLIED TO THE "R" LINE VIA THE
    SWITCH. THIS COULD BE QUITE CONFUSING TO THE LITTLE ARGOSY AS ITS
    BEING TOLD TO TRANSMIT AND RECEIVE AT THE SAME TIME.  TO AVOID THIS
    CONDITION ADD A DIODE IN LINE WITH THE SPOT SWITCH YOU'VE ADDED.

    0300z, 915 msgs, #8398 last @KD6TH-4 MailBox>