PARTS LIST
Unpack the kit and check each part against the follow
ing list. The key numbers correspond to the numbers
on the “Parts Pictorial”. Return any part that is
packed in an individual envelope, with the part
number on it, to the envelope after you identify it
until that part is called for in a step. Do not discard
any packing material until all parts are accounted for.
To order a replacement part, always include the Part
Number and use the Parts Order Form furnished with
this kit. If a Parts Order Form is not available, use one
of the “Expedited Parts Order Forms” at the rear of
this Manual, or refer to “Replacement Parts” inside
the rear cover. Your Warranty is located inside the
front cover. For prices, refer to the separate “Heath
Parts Price List.”
KEY HEATH QTY. DESCRIPTION CIRCUIT
No. Part No.___________________ Comp. No.
RESISTORS—CAPACITORS
NOTE: The following resistors are rated at 1 /4-watt and have a
KEY HEATH
No. Part No.
QTY. DESCRIPTION
CIRCUIT
Comp. No.
tolerance of 5%. 5% is indicated by a gold fourth color band.
A1
6-221-12 2
220 fl (red-red-brn)
resistor
R1, R2,
A1
6-102-12 11
1000 fl (brn-blk-red)
resistor
R3, R4,
R5, R6,
R7, R8,
R9, R11,
R12, R13,
R14
B1
21-761
3
.01 p.F ceramic capacitor
C1, C2,
C5
B2
25-221
2
2.2 /
j
.F tantalum capacitor
C3, C4
INTEGRATED CIRCUITS
NOTE: Integrated circuits are marked for identification in one
of the following four ways:
1.
Part number.
2. Type number. (This refers only to the numbers; the
letters may be different or missing.)
3.
Part number and type number.
4.
Part number and a type number other than the one
listed.
C1
443-755
1
74LS04
U4
C1
443-732
1
74LS30
U5
C1
443-77
1
7438
U6
C1
443-730
1
74LS74
U3
C1
443-754
1
74LS240
U2
C2
442-54
1
7805
U1
CAUTION: The following IC can be damaged by static electric
ity. Do not remove this IC from the conductive foam until you
are instructed to do so in a step.
C1 444-70*
1 ROM
IC204
* NOTE: Your integrated circuit may be marked 444-74. Either integrated circuit
will work properly.
CONNECTORS—SOCKETS
D1
432-865
1 3-connector shell
D2
432-866
4 Spring connector (3 extra)
D3
432-946
1 25-pin plug
D4
432-986
1 3-pin plug
D5
432-1125
2 26-pin socket**
D6
434-298
4 14-pin IC socket
D7
434-311
1 20-pin IC socket
MISCELLANEOUS
E1
E2
E3
E4
E5
60-621
1
8-section slide switch
85-2521-1
1
Circuit board
261-29
2
Square foot
340-8
12" Bare wire
344-55
6"
Green wire
344-92
12" Red wire
438-55
2
Polarizing plug
Blue and white label
490-185
1
Desoldering braid
1 Manual (See Page 1
for part number.)
1 ROM (listing)
Solder
**NOTE: You may have been supplied two 6-pin and two 20-pin sockets instead
of two 26-pin sockets.
SW1
