Philco-Radio-and-Television-Corp-NT-601 电路原理图.pdf

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1、VOLUME R-25, MOST-OFTEN-NEEDED 1965 RADIO SERVICING INFORMATION PH ILCO TRANSISTOR PORTABLE MODEL NT601 (Continued on page 97, adjacent at right) u =1 es Orf) 2 HHi AAA- r, TC 1 TjuU Ul Ulfr CD CM Ccj D f2oS cm* u QL oz * o % uj *- OK 2 UJ* z z 2 -1 - u, =z S“ 2 z - o Ji-z o $2fc z- - 2 uj o zi t- i

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4、STEP CONNECTION TO RADIO DIAL SET ING DIAL SETTING SPECIAL INSTRUCTIONS ADJUST 1 USE RADIATING LOOP SEE NOTE 455KC TUNING GANG FULLY OPEN ADJUST FOR MAX. OUTPUT T4, T3, T2 2 REPEAT STEP 1 UNTIL NO FURTHER IMPROVEMENT IS OBTAINED 3 SAME AS STEP 1 525KC TUNING GANG FULLY CLOSED ADJUST FOR MAX. OUTPUT

5、T1 OSC COIL 4 SAME AS STEP 1 1630KC TUNING GANG FULLY OPEN ADJUST FOR MAX. OUTPUT VC IB OSC TRIM. S REPEAT STEPS 3 AND 4 6 SAME AS STEP 1 1400KC 1400KC ADJUST FOR MAX. OUTPUT VC1 A ANT. TRIM. 7 SAME AS STEP 1 600KC 600KC ADJUST COIL ONLY IF NECESSARY El ANT. COIL NOTE: FOR RADIATING LOOP, USE A 6 TO B TURN, 6 INCH DIAMETER LOOP MADE OF NSULATED WIRE. CONNECT LOOP TO GENERATOR TERMINALS AND PLACE ABOUT 12 INCHES FROM RADIO “Wr-as 收音机爱 好者资料库 RadioFans.CN