Zenith-Radio-Corp-5Z05 电路原理图.pdf

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1、VOLUME R-17. MOST-OFTEN-NEEDED 1957 RADIO SERVICING INFORMATION Zenith Radio Corporation Models Z508B, L & V Chassis 5Z05 The l.F. transformers incorporated in this receiver are of the new permeability tuned type. The advantage of an l.F. transformer of this type is its extreme stability under vario

2、us humidity and temperature conditions. The upper coil is the secondary and the lower the primary. When adjusting these l.F. transformers the tuning wrench 68-19 can be inserted into the top slug, rotated until maximum output is obtained and then dropped down to the lower slug and the same operation repeated. The tuning wrench is so design ed that turning one slug does not affect the adjustment of the other. 18 T SnQ 03 Q:. o /jfiTf Oof TTlSJSl vil o. is ik=H il 1, U * .5 ,X 1 i till 177 收音机爱 好者资料库 RadioFans.CN