pdf 39 - WECo 112A Amplifier Popular
By Paul F 1143 downloads
WECo_112A_Amplifier_tci_ocr.pdf
April 1939. THIS IS A SINGLE-STAGE AMPLIFIER USED IN CONNECTION WITH A 321A, 321B OR 321C TELEPHONE SET IN THE NO. 2A KEY TELEPHONE SYSTEM PER DRAWINGS SD-69103-011 AND SD-69103-012. Contributed by Steve Cichorsky.
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