Need a little bulb help please

Deltatech. My heater control doesn’t look like that. My 72 Scamp heater control is identical to my 76 Dart heater control.

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It's in the same location.That was just an example to take a picture of that I had laying around from a 91 D100. I've changed them out laying in the floorboard and reaching up through the back of the dash and around the back of the stereo.
I had a 72 scamp with Heat only and it had a bulb in it but I don't know if the heater control was an original part.

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