Hallicrafters-Inc-612 电路原理图.pdf

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1、MANUAL OF 19S4 MOST-OFTEN-NEEDED RADIO DIAGRAMS the hallicrafters co. MODELS 611AND 612 MANWAcnNuns of kaoio, mevisiow and elkctionic cquifmint, CHICAGO m, o. s. a. AC/DC RADIO RECEIVER Connect output meter across voice coil, e Set volume control at maximum. e Use a non-metallic alignment tool, e Re

2、fer to Fig. 2 for location of alignment adjustments. Generator must have modulated output and cover 455 KC, 1400 KC and 1620 KC. e To avoid AVC action use lowest output setting of generator that gives a satisfactory reading on meter. Step Signol Generator Connections Generator Frequency Receiver Dia

3、l Setting Adjust High side through .01 mfd. capa citor to pin 7 of V2. Low side to B-. 455 KC Gang half meshed A and B (2nd I-F) C and D (1st I-F) 2 Same as step 1 1620 KC i Gang fully open E (Osc. trimmer) 3 High side through .01 mfd. capa citor to pin 1 of VI. Low side to B-. 1400 KC Tune in gen.

4、signal F (Mixer trimmer) Radiate generator signal into loop antenna. 1400 KC Tune in gen. signal G (Antenna trimmer) 5 Same as step 4. 600 KC 600 KC H and J (osc/mixer slugs) 6 Repeat step 4. (Continued on the next page, over) 收音机爱 好者资料库 RadioFans.CN MANUAL OF 1954 NEEDED RADIO DIAGRAMS V * I I s;!a

5、 Se i h The Hallicrafters Co. Models 611 and 612 (Continued from the previous page). 3 u. x IE . 2 3 13 Z 2 O 5 5 S S 5 H hi ! S- UJ to : u it -J d o *5 u - . + - o . o Q- y O O . rt rt So 04 q. O 2* Id . rt S *o o S *2 H wg SS Sj s a s S t- 3 I ISlssJ; HE-* no : g. o o . oo oo S * . u *d f* f* g S o o IhoSS i o o “-ill Si 1 jc w 5 5 o c -S -S MS 0 o S o CO 0 04 H CO Id H 1 I I I I : 05 05 05 05 I C-30.0.1 mfd. 600 V., molded paper 收音机爱 好者资料库 RadioFans.CN