BK650 Cal 电路图.pdf

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1、RadioFans.CN 收音机爱 好者资料库 B . 5-2 . p1-5 . p1-4 . p1-4 . .P L.l . p1-1 . p1-5 . ME-1 . TP-1 . V-6AT6 . V-83 . CL-20-250 . CL-20-250 . CL-20-250 . CL-250-6 . CP-Al-200-20 . CP-A005-600-20 . CC-A01-500-20 . P-4 . P . 2 . P.1 . P.3 . RW-151-D-5 . .RW.151. D.5 . RW-160-D-5 . .RC.184. A.10 . RC-124-B-5 . R

2、C-273-A-5 . RC-103-C-5 . RC-474-A-10 . RW-352-D-5 . .RC.565. A.10 . .RC.106. A.10 . RC-563-A-10 . RC-4S4-A-10 . RC-182-B-5 . RC-121-B-5 . RG.122.7.5 . . RG-621-7-5 . RG-241-7-5 . .RC.103. A.10 . .RC.331. C.10 . .RC.331. C.10 , . RC-103-A-10 . RW-160-D-5 Page 11 i DESCRIPTION . . . . . . . . . . - .

3、PART No . R28 10K 1/2W 10% Resistor. . .RC-103-A-10 29 10K %w 10% Resistor. . .RC-103-A-10 R30 10K %W 10% Resistor. . .RC-103-A-10 R31 10 %W 10% Resistor. . RC-103-A-10 R32 330012 zw 10% Resistor. . . .RC-332-C-10 R33 220012 2W 10% Resistor. . RC-222-C-10 R34 220012 2W 10% Resistor. . . RC-222-C-10

4、R35 120012 1W 10% Resistor. . . RC-122-B-10 R36 10 Meg. $W 10% Resistor. . RC-106-A-10 6 7 Pin Miniature Tube Sockets (Te . . . . . . . . . . G7PF 21 9 Pin Noval Tube Sockets (Test). . . . . . . . . . . . . . . G9PF 6 . Octal Tube Sockets (Test). . . . . . . . . . . . . . . . G8P 2 Pin Jacks . . 1 2

5、0 Contact Connector Socket (Fema 1 . B 9 ?Lot lite to a #c.tion at serial #5163. Number h on the z.i.hched Add R-35 resistor: k s been done in prockctio: a% app-oxktely serial #L700. Number 5 on the 83;ached Change R-20 resistor has been done in prchction at amproxima te1.y ssrial 8b700, Number 6 on

6、 the r.ttached Change R-18 resistor has been done in prociuc?;ion at approximately serial #$aO. Number 7 on the attached Change R-10 an.$ it-ll resistors has been done i n production a t approxlmbely serial #6000. An. additional prodtiction change is as follows: To pick up heatm t o grid short, two

7、ca? The se;tings Tor tk.se tx?.?:es in tkis socket then are : In o;.der to t e s t these Woes, s:are socket #33 nay be TUBE SCC:zT GCO?r?A E X 3 Gn 33 T r i 1 88 63 red 95 71 black m 6 x 7 6 -ri 2 33 i 1 T r i 2 8 8- 63 red 55 71 black INSTRUCTIONS FOR OFFICIAL S%RVIZE ACENCIB F O R B .pe from each

8、of the following B . Group 1 Group 2 Group 3 6AU6 12AU7 6BG6 6AG.5 E A T 7 6E X checker that has been accurately calib- rated per instructions and that is connected t o a controlled AC line ac- curately s e t t o 115 V . I ) . Six or seven of these tubes w i l l have the same reading on the meter. E

9、 . Select one of these tubes and label with tne reading obtained. F, These tubes can hen be used for caXb2ation OZ future checkers sermced. Where high current tubes fall to one side of standard, opposite to reading on tubes of the 6kV6 variety, it m a y be necessary tc slightly re-adjust the bias co

10、ntrol. for allmocel tube testers. in a checker known t o be good and with signal and bias cerefully set. This method may be used for selection of calibrated tubes In each case the tubes are initially checked -.- K i t ASM-7 is designed in oraar to aJ.Lo?r owrers of the riodel 6.50 Tube Tester t o co

11、ntrol sensitivity of the grid eriission or llgaspi test, This circuit can then be adjusted for as critical an evaluztion of gas content a grid current of vacuum tubes. a ; ? desked, To install ASlyi-7 K i t proceed as follow: 1. 2. Remove large panel fron carrying case and disconnect connecting cabl

12、e coming- Remove signal colltrci fo!,i mounting bracket withovt disconnecting wires from D r i l l out rivets holdicg miinting brzcket t o sub chassis plate. blount P-h3 in otner mounting hole. Mount new bracket in pla.ce of old one using hardware supplied. Remove from pin 2 of 66 located next t o m

13、eter, lead running to junction of These resistors are located on socket side of sub-chassis plx Replace R-10, 12TK, it:, s% resistor PLth 6Ck.is c.oi:t?oi is 1xa:ed. di-ectljj beneath socket 60). 2: 14ount . signai control on new bracket in hole closest to bend with control on l i p side. 5. 6. 7. 8

14、. 9. 1 0 . 1 1 . 12. R-10 and R-11. terminal of. . 20 K Pot “H . 1800 Ohm $ Watt 10% Carbon Res. RC-182-A-10 22 K Ohm 2 Watt -10% Carbon . RC-223-(2-10 12 K Ohm 1 Watt -10% Carbon Res. . RC-123-B-10 . P-75 Switch, Set-Up A, B, C, D, E, F . S-50 4 Position, Slide Switch “J” . . . S-51 Switch, Set-Up

15、“G . . S-52 DEALER PRICE 1.98 .12 .18 .12 .15 .03 .03 .03 .12 .15 .15 1.77 .06 .18 .09 2.67 .42 .32 Phi 215 9-60 R R PRESS 1 I 1 I 1 B 1 0 0 II I II 0 i l I I I I I FERRITE RINGS _- - LOCKED OUT FROM THE SWITCHES iHE BALANCE OF Copynght 3000 DOCTT ELECTROW3 B&K ,vFG. co, ww.bhtesteoUiOmPnt com CHICAGO, ILLlNlOS WIRING DIAGRAM OF*6 1 0