01-31-2006, 09:57 AM
In high impedance circuits - a lot. Just be aware of it. Using a 20K meter will be ok - all DC readings will be proportionally higher that's all, since the meter does not load down the circuits under test like a 1K-P-V meter does. You're looking for ball-park readings and looking for way--off or missing readings.
Chuck Schwark,
The Philco Repair Bench
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