by FYI, here is the parts list of the Optimus 12-603A AM/FM High-Performance
Radio (otherwise known as the Radio Shack GE SRIII knock-off) taken from
the Tandy Product Support web page. Note the service manual about half
way down the list. I just ordered one via the 800# and the total cost
(with shipping and tax) was $8.34.
There is also an on-line instruction manual at the RS support web page.
Go to: http://support.tandy.com and follow links to "Home Audio", then
"AM/FM/clock radios"; it's listed under "120-0603". To get directly to
the parts page I've pasted below, go to url:
http://support.tandy.com/support_audio/34142.htm.
120-0603 AM/FM AC/DC PORTABLE RADIO Faxback Doc. # 35879
To order parts call 1-800-843-7422 or visit your local RadioShack store.
Reference # Cat.No. Description NP Part #
------------------------------------------------------------------------
11318524 CASE STYLE D041 (T) 1N4001
D306 D310 D311 11318615 DI 1N4148 DO35 T SI GP 1N4148
Q302 Q303 11332251 XSTR 2SC2458 SI NPN 2SC2458
11432051 CASE STYLE B40 (T) 2SK101
Q301 11377991 XSTR 9013 SI NPN AF/RF 9013
Q101 11378007 XSTR 9014C SI NPN AF/RF 9014C
Q102 11378080 XSTR 9018H SI NPN 9018H
46 11655529 ANTENNA ROD TELESCOPING A00036
TC4 TC5 11655396 COIL TRIMMER 10PF C00003
TC1 TC2 TC3 11655404 COIL TRIMMER 20PF C00004
T101 11655412 COIL FM IFT 7A127N ORANGE CA00040
T102 T103 11655420 COIL AM IF 4A212R YELLOW CA00041
T302 11655438 COIL OSC 7M4A465R BLACK CA00042
L104 11655446 COIL AM RF S1B17N BLACK L CA00043
L103 11655453 COIL AM OSC 1SB33N RED LH CA00044
41 11655644 DOOR BATTERY DB00107
D101 D102 D103 11655354 DIODE KV0714-3 DX00021
D305 10622850 DIODE 5.6V 1N5232 DX0422
D104 D105 10627438 DIODE 1SV101 SC VARACTOR DX2065
66 11655552 HOLDER HANDLE LEFT HB00046
64 11655560 HOLDER HANDLE RIGHT HB00047
11719044 CONTACT CHARGING + HJ00004
67 11655545 HANDLE ASSY HL00029
1 11655651 BADGE LOGO (OPTIMUS) HM00017
10719979 JACK,EARPHONE J0055
10 11655586 KNOB TUNING TOP K00225
7 11655594 KNOB TUNING BOTTOM K00226
3 11655602 KNOB ROTARY TOP TREBLE/BA K00227
4 11655610 KNOB ROTARY BOTTOM K00228
5 11655628 KNOB FUNCTION AFC OFF/ON K00229
59 11655636 BUTTON POWER K00230
IC101 11390929 IC,LA1186N R/W AMP 10 PIN LA1186N
IC102 11390945 IC,LA1260 LINEAR AMP 16P LA1260
11655693 MANUAL SERVICE 12-603 MS1200603
11837911 MANUAL USERS 12-603 MU1200603
R309 10940377 150 5% 1/4W CBF RES N0142EEC
R105 10941342 1K 5% 1/4W CBF RES N0196EEC
R125 10942498 10K 5% 1/4W CBF RES N0281EEC
R202 10942704 15K 5% 1/4W CBF RES N0297EEC
VR201 VR202 11655362 POT BASS/TREBLE 100KG P00033
VR203 11655370 POT VOLUME RV09A P00034
VR301 11655388 POT TUNING V16L4 P00035
SW4 11655461 SWITCH PUSH POWER PS22F02 S00050
SW1 SW2 SW3 11655479 SWITCH SLIDE AFC ON/OFF/F S00051
SW5 11655487 SWITCH SLIDE AC/DC SS2212 S00052
13 11655503 SPEAKER 5" YDD131-1 8W 8Q SP00026
68 11655511 SPEAKER TWEETER 2W 8 OHM SP00027
T301 11655495 TRANSFORMER POWER WH35-15 TA00015
L105 11100823 TRANSFORMER,FM IFT 7A161R TB0260
63 11111093 CORD,AC SPT-2 18AWG BLACK W0582
11655347 PCB ASSY RADIO XB00145
11932845 27 XB90350
6 11655669 CABINET FRONT WITH DIAL L Z00190
34 11655677 CABINET BACK Z00191
2 11655685 GRILLE SPEAKER Z00192
(This list was generated on 05/06/1998)