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So, which direction is it out of spec? Too high and won't come down low enough? Or too low and won't come up high enough? That's what we encounter when a choke gets clipped in series with D37, the varactor diode. The choke pulls the crystal down too far for CT3 to reach the channel center.

But knowing which direction your error lies, above or below is a serious data point.

73

[QUOTE="nomadradio, post: 849362, member: 22"] So, which direction is it out of spec? Too high and won't come down low enough? Or too low and won't come up high enough? That's what we encounter when a choke gets clipped in series with D37, the varactor diode. The choke pulls the crystal down too far for CT3 to reach the channel center. But knowing which direction your error lies, above or below is a serious data point. 73 [/QUOTE]

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