HP10811

by texaspyro.
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2 layer board of 2.90x1.95 inches (73.69x49.58 mm).
Shared on June 20th, 2016 04:00.

Outer oven controller for the HP10811 double oven oscillator based upon a design by Warren Sarkison.

The darlington power transistor should have a high beta at the oven current. I used a house-numbered part with a beta of around 1000.

IC1 is a dual op amp like a TL082.

C8 and C9 should be quality, low leakage caps.

R7/R8/R9 can be adjusted for different input voltages and oven currents.

The three pads on the right end of the board are for monitoring test points.

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