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April 1990 pt 1 - WordPress.com · 2018-11-03 · leadout wires are usually generous, and can be cut back sufficiently to expose sufficient lead to salvage the valve. The technique

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Page 1: April 1990 pt 1 - WordPress.com · 2018-11-03 · leadout wires are usually generous, and can be cut back sufficiently to expose sufficient lead to salvage the valve. The technique
Page 2: April 1990 pt 1 - WordPress.com · 2018-11-03 · leadout wires are usually generous, and can be cut back sufficiently to expose sufficient lead to salvage the valve. The technique
Page 3: April 1990 pt 1 - WordPress.com · 2018-11-03 · leadout wires are usually generous, and can be cut back sufficiently to expose sufficient lead to salvage the valve. The technique