On a parts list that Ed made up and sent to me in order to help it shows this " R19 5.6 1W or 5.6K 10% ? - (may see some with a 1N4752 33V zener diode)" Leave it to me to find and buy the Friday model...OH shit man,,,(inhales strongly and gulps beer) look ! We can put these two diodes in and see what happens !!!