From Heath Zenith Kit Builders Guide
to: Installing parts, Proper soldering, Resistor & capacitor
codes. Part # 597-4212.
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Last update May 2000
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When both the lead and the circuit
board foil are heated at the same time, the solder will flow onto the
lead and foil evenly. See Illustration A.
When the lead is not heated sufficiently, the solder will not flow onto the lead, as shown at B.
When the foil is not heated sufficiently, the solder will blob on the circuit board as shown at C.
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