CRYSTAL-OVEN 10MHz reference, from PTS-40 NMR synth Vectron Labs, 216-2671-1 Pinout which is vcc? which is oven supply? 1 - 330 ohm to pin 7 (bias?) 2 - -12.4 oven 350mA 3 - -12.4 power 10mA 4 - Gnd 5 - Gnd 6 - X 7 - OUT 10MHz 8 - X VECTRON LABORATORIES, INC. 166 Glover Avenue. Norwalk, Connecticut 06850. Telephone: 203/853-4433 TWX: 710/468-3796.