Howard-Radio-Co-12B 电路原理图.pdf

《Howard-Radio-Co-12B 电路原理图.pdf》由会员分享，可在线阅读，更多相关《Howard-Radio-Co-12B 电路原理图.pdf（2页珍藏版）》请在收音机爱好者资料库上搜索。

1、MANUAL OF 1940 MOST POPULAR SERVICE DIAGRAMS SERVICE NOTES It Is necessary that the INEO tube be shielded. See that the shield is firmly In place around the bottom portion of the tube. The Intermediate frequency of this receiver Is 465 KC. The trimmers and padding condenser adjustments are accessibl

2、e through bottom of cabinet. Color code of battery leads:- Red 1*90; Black B-i Brown A-; Blue A KECflMEND BATTERY KITS EVEREADY BURGESS For greater economy use two colls In PARALLEL. Connect. li V. A 1 Roqulrod 740 20-F plus to plus and minus to min 45 V. B Required 749 D60 Combination A and B Singl

3、e Unit. 746 17GD60 Use Adaptor Each step of tbs alignment should be repeated in. the original order for greater accuracy. Keep output from Signal Generator low. The I.F trimers are reached through the two holes on the top of each I.F. can. See that the tuning hand le set exactly on the last line abo

4、ve 54D when the condms.r Is at maxima capac ity. The following dumy antenna circuit le recommended, since It la adaptable for any frequency range. The grid oep should remain In place during alignment. OSI IMPP I F L6AO J0002 Jj GENERATOR 46 V .COO+p 0 2 o neoHCMet cs _ KCC- AMT COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN