321: Difference between revisions

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(differences between 321 and 321A)
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the 321A uses 2N2207 transistors.   
the 321A uses 2N2207 transistors.   


* http://w140.com/kurt/7586-philips1962.pdf
* http://w140.com/kurt/5718.pdf
* http://w140.com/kurt/5718.pdf