Ovenaire 1MHz crystal oven. Model sierra-A02375100
 

Hello All,
I am looking for the pin out details on the eight pin
connector, a tube style connector, that is fitted to
this oven oscillator module.
DC in, Oscillator output, that sort of information.
Regards,
John


*** Free account sponsored by SecureIX.com ***
*** Encrypt your Internet usage with a free VPN account from http://www.SecureIX.com ***

Good Afternoon John,
I also have one of the Ovenaire "Sierra" oven/oscillators.
Mine still has the octal socket and wiring with it.

Also I opened up mine and took a peek inside.
(not much to actually see unless you destroy it)

Here is the internal wiring and the external (socket) wiring:
Pin #1 - (internal - Red wire) Socket - Red wire connected to pin #4 and probably to (+) voltage.
Pin #2 - (internal - N.C.) Socket N.C.
Pin #3 - (internal - Green) Socket - Red wire.
Pin #4 - (internal - White/Red stripe and a capacitor to pin # 5) Socket - Red wire connected to pin 1 and to + supply.
Pin #5 - (internal - White/Black stripe and a capacitor to pin # 4) Socket - Black wire connected to Pin #6 and to pin #8 and probably to - voltage.
Pin #6 - (internal - Black wire) Socket - Black wire connected to Pin #5 and to pin #8 and probably to - voltage.
Pin #7 - (internal - Yellow wire) Socket - 1,000 ohm resistor to Pin #8 and to Blue/orange stripe wire, probably the RF output.
Pin #8 - (internal - bare wire soldered to the metal case) Socket - Other end of the 1,000 ohm resistor and to pins #5 and #6. Probably to (-) voltage.

OK, my observations a
Pins #1 and #4 are connected to a Plus voltage.. probably +12 or more..
Pin #3 maybe a 'keep-warm' supply which powers the oven when the equipment is turned off. (just guessing here)
Pins #5, #6 and #8 are Grounded and connected to the Minus voltage.
Pin #7 is the 1000.000KC output. It is loaded by the 1,000 ohm resistor.

What I will do when I have some time is to slowly increase the voltage to the oven/oscillator until there is an output on an oscilloscope.
That should b a good clue as to what actual voltage was required by the manufacturer.

I would like to use mine with a short-wave radio as the marker.
Good Luck
Eric.

Good Morning John.
I have received some additional information from a friend.

Pin #1 - Oven Heater (see pin #4 info)
Pin #2 - N.C.
Pin #3 - Output to an incandescent indicator lamp. Shows oven on/off. (ground other lamp lead) Use a bulb which matches the heater and oscillator voltage.
Pin #4 - Plus voltage to oscillator (Less than 30 volts for his model) Start low and work up.
Pin #5 - Negative voltage to oscillator (can connect to ground).
Pin #6 - Oven Heater (can connect to ground).
Pin #7 - 1 MC/S RF output into 500 ohm load.
Pin #8 - Ground for entire shield can and for the R F output.

Please look at my previous post to see how my socket was wired.
Thank you, Eric.