[Elecraft] K2 control board D10 and D12?

[C T Morton]

Hello,
Installed D10 and D12 on control panel. Seemed to take inordinate amount of
time to solder thick leads to board. Wonder if I somehow damaged the
diodes...used diode checker to test components (Extech MultiTec 310)
Readings on D10: .69, reversed the leads get .03-resistance shows 155 ohms
Readings on D12: .02, reversed the leads get .148-resistance shows 135K ohms
Wonder if I "cooked" the diodes?
Help!!
Tnx
Tom
P.S. Using Hakko 936 iron at 750 degrees with clean shiny tip...