DISCR/DET        CKT     BASEBAND
SCANNER         CHIP TYPE       SYMBOL   AUDIO PIN
==============  ==============  =======  =========
unknown         MPS5071         n/a        9
AR-1000         TA-7787AF       IC-4       9
AR-2002         MC-3357P        IC-4       9
AR-2500		TA-7761P	IC-13      9
AR-3000         MC-3357P        ?          9
AR-800          MC-3361N        IC-200     9
AR-900          MC-3361N        IC-201     9
AR-950          MC-3361N        IC-201     9
AR-8000 NFM     TK10489M or-85M U1        11
AR-8000 WFM/AM  TA7792F         U3         8
BC-80XLT        MC3361B0        IC-101     9
BC-100XL        MC-3359P        IC-1      10
BC-100XLT       TK-10421M-2     IC-401    11
BC-140XLT       MC-3359P        IC-1      10 *
BC-200XLT       TK-10421M-2     IC-401    11
BC-205XLT       TK-10421M-2     IC-401    11
BC-235XLT       MC3361CDR2      IC-2       9
BC-250          ?               IC-3       9
BC-2500XLT      TK-10930VTL     IC-201    12-FM  13-AM
BC-3000 NFM/AM  TK-10930V       IC-202    12-NFM 13-AM
BC-3000 WFM     TK-10489M       IC-203    11
BC-350A         NJM-3359D-A     IC-3      10
BC-400XLT       NJM-3359D-A     IC-1      10
BC-560XLT       NJM-3359D-A     IC-1      10
BC-700A         NJM-3359D-A     IC-3      10
BC-760XLT       NJM-3359D-A     IC-2      10
BC-800XLT       MC-3359P        IC-1      10
BC-235XLT       MC3361CDR2      IC-2       9 *
BC-8500XLT      MC-3361BP       IC-9       9
BC-855XLT       TK-10421M-2     IC-401    11
BC-890XLT       NJM-3359D-A     IC-3      10
BC-895XLT       MC13371         IC-3       9 *
BC-950XLT       NJM-3359D-A     IC-2      10
BC-9000XLT      MC3361B0        IC-8       9
BC-9000XLT WFM  TK10489-MTL     IC-9      11
BC-9000XLT AM   LA1600A         IC7        8 or 9 (?)
BCT-7           MC3361BD        IC-2       9
HX-1000         TK-10420        U-201      9
MR-8100         NJM-3359D-A     IC-3      10
MX-5000         MC-3357P        IC-4       9
MX-7000         MC-3357P        IC-4       9
PRO-2002        MC-3357P        IC-101     9
PRO-2003        MC-3357P        IC-104     9
PRO-2004 NFM/AM TK-10420        IC-2       9 (TP4)
PRO-2004 WFM    KB4419A         IC-1       6 (TP3)
PRO-2005 NFM/AM TK-10420        IC-2       9 (TP2)
PRO-2005 WFM    KA2243N/HA12413 IC-1      10 (TP1)
PRO-2006 NFM/AM TK-10420        IC-2       9 (TP2)
PRO-2006 WFM    KA2243N/HA12413 IC-1      10 (TP1)
PRO-2011        TK-10420        IC-1       9
PRO-2020        MC-3357P        IC-101     9
PRO-2021        TK-10420        IC-2       9
PRO-2022        MC-3361N        IC-1       9
PRO-2023        NJM-3359D-A       ?       10
PRO-2024        MC-3361N        IC-2       9
PRO-2025        NJM-3359D-A     IC-1      10
PRO-2026        NJM-3359D-A     IC-7      10
PRO-2027        MC-3361N        IC-2       9
PRO-2028        NJM-3359D-A     IC-2      10
PRO-2030        NJM-3359D-A     IC-3      10
PRO-2032	MC-3361         IC-2       9 (TP5)
PRO-2035 NFM/AM TK-10420        IC-2       9 (TP2)
PRO-2035 WFM    KA2243N/HA12413 IC-1      10 (TP1)
PRO-2040        MC3361BP        IC-2       9
PRO-2041        MC3361N         IC-301     9  *
PRO-2042 NFM/AM TK-10420        IC-2       9 (TP2)
PRO-2042 WFM    KA2243N/HA12413 IC-1      10 (TP1)
PRO-2050        MC3361CDR2      IC-2       9  *
PRO-23          MC-3361BD       IC-1       9
PRO-26 NFM/AM   TK-10930V       IC-14     12-NFM 13-AM
PRO-26 WFM      TK-10489M       IC-16     11
PRO-31          TK-10420        IC-1       9
PRO-32          TK-10420        IC-101     9
PRO-34          TK-10420        IC-101     9
PRO-35          TK-10421M-2     IC-401    11
PRO-36          TK-10420        IC-101     9
PRO-37          TK-10420        IC-101     9 (TP103)
PRO-38          MC-3359P        IC-1      10
PRO-39          MC-3361N        IC-201     9
PRO-41          MC-3359P        IC-1      10
PRO-42          MC-3361N        IC-2       9
PRO-43          TK-10427/-10420 IC-301     9
PRO-44          MC-3361N        IC-201     9
PRO-46          TK-10421M-3LT   IC-401    11
PRO-49          MC3361BP        IC-2       9
PRO-51          MC-3361BD       IC-1       9
PRO-60          ?               IC-301     9
PRO-62          KA3361          IC-301     9  *
PRO-64          MC3361N         IC-301     9
PRO-66          MC3361N         IC-2       9 (TP3) *
PRO-90          MC3361CDR2      IC-2       9
Icom R-1 NFM	TK-10487  DET-A IC-1	  11
Icom R-1 WFM	TA-7787AF DET-B IC-1	   9
Icom R7100	Said to be "top of R230 on main PCB"  *
R-1600          NJM-3359D-A     IC-2      10
R-4030          TK-10421M-2     IC-401    11
SR-15           TK-10421D-2     IC-1       9
StandardCCR708A TK-10420D	Q602       9 *
TurboScan 2     3130-6056-502   U-201     10 or 16
WiNRADiO  NFM   MC-3372D        U2         9 TP20
WiNRADiO AM/WFM TA-7640AP       U5         9 TP29
WiNRADiO  SSB   LM324M          U6         1
Yaesu FRG-9600  MC-3357P        ?          9 *
=====================================================


     TABLE 2
DISCRIM     OUTPUT
CHIP         PIN
=========   ======
KA3361         9
MC13371        9
MC3357P        9
MC3359P       10
MC3361         9
MC3372D        9
MPS5071        9
NJM3359DA     10
TA7640AP       9
TA7761P        9
TA7787AF       9
TA7792F        8
TK10420        9
TK10421D       9
TK10421M      11
TK10427        9
TK10485M      11
TK10487       11
TK10489M      11
TK10930V      12
HA12413        9 WFM Only
KA2243N        9 WFM Only
KB4419A        6 WFM Only

Once you locate the discriminator in your scanner, you have to
make its output conveniently available on the exterior chassis,
much like a headphone or tape recorder jack.

Figure 1 below shows how to determine the pin numbering system
for most integrated circuits.  Looking at the marking side of
the chip, there is either a notch or nook at one end, and/or an
embedded "dot" off to one side at one end.  The notch, nook, or
dot signifies the end that starts with Pin #1 and ends with
whatever the highest numbered pin happens to be.  Most IC's have
8, 14, 16, or 18 pins.

                FIGURE 1
          TYPICAL IC CHIP PINOUT

          14 13 12 11 10  9  8
           |  |  |  |  |  |  |
         +---------------------+
         |                     |
         |        TOP VIEW     |
  Notch  \          LABEL      |
         /  Dot     SIDE       |
         | O                   |
         |                     |
         +---------------------+
           |  |  |  |  |  |  |
           1  2  3  4  5  6  7