Oh!!! All is well.. I appreciate that you chimed in... Thank you! At any point the diodes coming in will be as extras. I know its not everyday they go out, but nice to have parts.The 1N4739A is a 9.1Volt 1 watt Zener diode. In the Cobra 139, D-48,49, & 54 are CV092 - 9.2 volt zener diodes. Any one of these should work. Good Luck.
- J.J. 399