[time-nuts] OCXO pinout

[WB6BNQ]

Joe,

Usually this type of crystal holder is referred to as a bang-bang oven can.  That
is the winding is controlled through a on/off thermal switch.  On the unlikely
side it could have a simple thermister and a power transistor for a simple analog
method.

With the octal plug system there should be some small screws around the base that
if removed would allow the can to be lifted off the base.  If that is the case
you would then see an internal metal can with another lid covering where the
crystal is plugged into a socket inside the internal can.

If that is the case you would also be able to see the wires to the base.  Then
you could use an Ohmmeter to trace out the connections.

If you do not feel this is the case, can you supply some pictures ?

Bill....WB6BNQ


Joseph Gray wrote:

> I have an OCXO in a small, round metal can with an 8-pin base (like an
> octal tube). The label on the top has the following information.
>
> Type
> T-29-3BB
> 5070766
> 1000 KC
> 115V  75C
> Piezo
> Carlisle, PA
>
> I've done some Googling, but haven't turned up anything yet. What I am
> looking for is the pinout of the 8-pin connector.
>
> Joe Gray
> KA5ZEC
>
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