That's what I thought, but in a real world application I got better results with the resistors/pot. It could have just been the pots I were using. What also worked quite well was to thermally bond the pot to the OCXO case... poor man's oven stabilization. --------------- > When used as a voltage divider (three terminal device) the claim by the pot manufacturing OCXO companies is that you are better with no added resistors.