Warren, Thanks for the Tbolt tips. The power supply was a good linear supply
so I doubt that was causing what I see. The room temp was cycling a degree,
maybe two, I did sometime see some quick shifts that were not coincident
with temperature but they were all less than 10 nS. The largest swings
always followed temperature excursions. Even after putting it in a box and
lowering the temp. drift to fractions of a degree, I would see swings if as
much as 30 nS in 5 minutes. I thought that this was just too much to fool
with and decided to use it as a reference for a 900 MHz ham repeater. It
will be interesting to see how it does in a room with no heat or air
conditioning. I hope to get on next week. I have another one and may, at
some time try putting a double oven oscillator to see how it does. I thought
about trying an LPRO but I think the Tbolt would just make it worse rather
than better.
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