RCA-Victor-Co-Inc-RADIOLA-24 电路原理图.pdf

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1、PAGE 98-A RADIOLAS24, 264 4.8 8 Diagram of Battery Connections for Portable Unit Beck ,weh Gine., and Blue Tracer) Six Reiliet ron Sods:its D STATION SELECTOR 11 Nei Tistpnona .lack X C TB rr.A-A+C C.(G-.eeon Tro,r) rI 6-A VA Boller., IndineL -8 4 AGoo ,o Trrt .n 10,00, 1 45 Y .I Neter. -Diagram of

2、Battery Connections VS hen Using Hone flattery Ho 收音机爱 好者资料库 RadioFans.CN PAGE 100-A RADIOLAS 24, 26 nnnnnnnnnnnnrinnn-,.-,-) Gnecomb weal OO.01000 - Volumes Control AmploflarTe teh 5 B (Mart .1!1 Bethr.b (Rad e:Bette .3 Bad, with) ad Tracer/ COTIlleriion Diagram orRlulillln Super-IIcteroticnr Batt

3、htiera +A Mal ooleattanj llow) 收音机爱 好者资料库 RadioFans.CN PAGE i0i -A RADIOLAS 24, 26 & SUPER -HETERODYNE Use of RCA B Battery Eliminator with Radiolas Super -Heterodyne and Super VIII (DUO-RECTRON-MODEL AP -937) These instructions cover the operation of RCA B Battery Eliminator (Duo- Rectron Model AP

4、-937)in use with Radiolas Super -Heterodyne and Super VIII employing Radiotron UX-120 in the second stage of audio frequency amplification. /Fil/Dialdf ./PEICHETETODYNE C 11.14414:t IN 1241VEL WIVINS 710 rivorace DeoqrscrToNro Ft/ICN/ON /3,r YOL71 71, )04,47X OF poweJr -rude IN LAST 77 9 ISE Avner.

5、,Tivirlh PAZ, for Slave ?romper. el/ parte shear, dotlivi 71.rmino/ Boone kofrity from the rear of /parse/. Mowwire owr old oo/seep- /os41/01sen Soheer.teeifrhframe 4.-0 73 # /JS Zrol .71e Connect a short piece of wire between the +45 terminal and the -45 ter- minal of the UR-556 adapter. Connect a

6、221/2 -volt B battery to the +221/2 and -221A C battery ter- minals of the UR-556 adapter. (This battery may be placed in one of the battery compartments.) Make the one wiring change shown by dotted line in Figure 1. Solder an insulated wire to theswitch frame (as indicated in Figure 1) and connect

7、free end to the +135 terminal of Duo-Rectron. Make other connections to the -B, +45 and +90 terminals of the Duo- Rectron in the usual manner as indicated in the Duo-Rectron Instruction Book No. 86996, Edition C. WHEN THE ABOVE ALTERATIONS HAVE BEEN MADE, THE STAGE CHANGE SWITCH WILL BECOME THE SECO

8、ND STAGE JACK AND THE PHONE JACK WILL BECOME THE FIRST STAGE JACK. These changes apply to Radiola Super -Heterodyne only. PAGE 102-A RADIOLAS 24, 26 & SUPER -HETERODYNE RADIOLA SUPER vIll Changes in panel wiring to enable Duo Rectron tofurnish 135 volts to plate of Radiotron UX-I20 in the last stage

9、 5 Catacomb whiskers 0 Terminal boardS 0 6769 10 it121514 00000 000- 0 00 0 Solder to frame Note: Amplifier switch plug removed and switch used as 1st Stage Jack c 548 2nd Stage 1st Stage To r 90 Connect a short piece of wire between the -45 and -45 terminals Of 1:11-556 adapter. Connect a 221: -vol

10、t B battery to the-i-221.2 C and221:, C ter- minals of the adapter.This battery supplies the proper negative bias for the grid of Radiotron UN. -120.It may be conveniently placed in the loca- tion vacated by the old B batteries. Connect: -B lead in Super -VIII (lower battery tier) to B of Duo-Rectron. +B (lower battery tier)to +45 of Duo-Rectron. -B (upper battery tier) to be taped up (not used). +B (upper battery tier) to +135 of Duo-Rectron.