Heathkit SP 2A Schematic
This is the 4 pages manual for Heathkit SP 2A Schematic.
Read or download the pdf for free.
If you want to contribute, please mail your pdfs to info@audioservicemanuals.com.
Extracted text from Heathkit SP 2A Schematic (Ocr-read)
Page 1
PAR TS LIST
PAR T PAR TS
N0. Per Kit
DESCRIPTION
PART PAR TS
No. Per Kit
DESCRIPTION
Sockets-Terminal Strips (cont)
Capacitors
21-3 2 10 uuf disc ceramic
21-13 2 500 uuf disc ceramic
21-14 2 .001 ufd disc ceramic
21-31 0 .02 nfd disc ceramic
21-36 3 .002 ufd disc ceramic
23-28 2 .1 ufd 200 v plastic molded paper
23-53 2 .1 nfd 400 v plastic molded paper
23 -59 4 .05 uld 200 v plastic molded
paper
25-4 2 10 grid 25 v tubular electrolytic
25-30 2 20-20 ufd 350vtubular electrolytic
25-35 3 2 ufd 50 v tubular electrolytic
25-41 1 40 ufd 350 v tubular electrolytic
25-44 2 25 ufd 25 v tubular electrolytic
25-71 2 30 ufd 200 v tubular electrolytic
Controls-Switches
10-35 8 500 K ohm Audio INPUT LEVEL
10-79 1 l megohm linear, tapped
LOUDNESS control
10-80 1 1 megohm linear, tapped
LOUDNESS control
10-81 2 1 megohm Audio Tone control
10-82 2 1 megohm Audio Tone control
10-83 1 250 K ohm Audio LEVEL control
10-84 1 250 K ohm Audio LEVEL control
10-88 2 10 K ohm Audio OUTPUT LEVEL
control
10-90 1 100 K ohm linear (miniature)
REMOTE BALANCE control
11-17 2 100 ohms wirewound HUM control
B63-162 1 1 deck - 3 position rotary
SCRATCH FILTER
A63-164 1 2 deck - 8 position rotary
SELECTOR
A63-165 1 2 deck 8 position rotary
SELECTOR
B63-166 1 1 deck - 4 position rotary
FUNCTION
63-178 2 Line switch "ON-OFF"
Tubes-Lamps
411-25 2 12AU7
411-26 2 12AX7
411-106 2 EF86
412-1 1 #47 - 6 volt Pilot lamp
Transformers-Chokes
46-20 1 2.2 henry
54-71 1 Power transformer
Sockets-Terminal Strips
431-1 2 Dual l-lug terminal strip
431-2 2 2-lug terminal strip
431-5 1 4-lug terminal strip
431-6 1 2-lug screw type terminal
strip
431-15 1 1-1ug terminal strip
434-16 2 9-pin wafer tube socket
434-20 5 110 v 2-prong socket
434-76 4 Triple phono socket
434-78 6 9-pin socket, printed
circuit type
434-82 2 Double phono socket
434-87 1 Socket for type #47 PILOT LIGHT
Plugs-Covers
206-93 2 Switch cover
432-17 1 Connector female
432- 18 1 Connector male
432-19 2 9-pin molded connector
438-4 8 Single prong phono plug
438-6 2 Octal plug
440-3 1 Cover with insulating linear
440-4 2 Vinyl plug cover
Hardware
250-2 12 2-38 x 5/16" machine screw
250-8 36 #6 x 3/8" sheet metal screw
250-9 46 6-32 x 3/8" machine screw
250-18 2 8-32 x 3/8" machine screw
250-29 4 6-32 x 3/ " machine screw
252-1 12 3-48 hex nut
252-3 61 6-32 hex nut
252-4 2 8-32 hex nut
252-7 28 3/8" - 32 control nut
252-37 1 9/32" - 32 nut
252-39 1 1/4" - 32 control nut
253-1 1 Flat fibre washer (small)
253-10 28 3/8" x 5/8" control washer
253-15 2 Flat fibre washer (large)
253-16 2 Fibre shoulder washer
253-46F246 Steel panel washer (remote
control)
254-1 57 #6 lockwasher
254-2 2 #8 lockwasher
254-4 22 Control lockwasher
254-7 8 #3 lockwasher
254- 14 1 #12 lockwasher
259-6 1 #3 solder lug
259-11 2 #6 spade lug
261-13 4 Plastic feet
Cabinet-Chassis-Associated Metal Parts
90-M87 1 Cabinet shell
100-M244 1 Front panel assembly
200-M177 -1 Power supply chassis
Page 2
PART PARTS
Per Kit
NO-_
DESCRIPTION PART
No.
PARTS
Per Kit
DESCRIPTION
Cabinet-Chassis-Associated Metal Parts (con't.)
ZOO-M178
ZOO-M189
202-M23
202-M24
204-M202
205-M96
205-M98
Knobs
462-70
462-71
462-75
462-79
84-1
84-8
84-9
85-20
Amplifier (A Channel) Chassis 57-13 2 35 MA selenium rectifier
Amplifier (B channel) chassis 73-1 1 3/8" rubber grommet
Chassis end plate (left) 89-1 1 Line cord
Chassis end plate (right) 95-1 1 Rubber remote control cone
Hum balance control bracket 206-30 1 length 1/8" spirashield
Amplifier chassis cover plate 206-68 6 Tube shields
Printed circuit cover plate 207-4 1 Plastic cable clamp
340-2 1 length Bare wire
343-3 1 length Shielded cable
Large knobs (concentric) #22 plastic jacket
Small knobs (concentric) 344-1 length Hookup wire
Small knob flatted shaft 346-1 length 1/16" sleeving
Small knob flatted shaft 346-7 length Sleeving #5
(remote control) clear plastic
347-1 1 length 8 conductor cable
Packaged Electronic Circuits-Printed Circuit Boards 347-9 1 length 3 conductor shielded
Tone control network 390-47 1 A channel input label-adhesive
Compensation network 390-48 1 B channel input label-adhesive
Loudness control network 390 -49 1 Power supply label-adhesive
Circuit boards 391-6 1 Logo "Heathkit" black and gold
413-4 1 Clear red jewel
453-68 1 Lock shaft (with identifying ring)
453 -69 1 Lock shaft
455-28 2 Bushing
595-296 1 Manual
Resistors
1-9 2 1 K ohm 1/2 watt (brown-black-red)
1-10 . 2 1.2 K ohm 1/2 watt (brown-red-red)
1-13 2 2.7 K ohm 1/2 watt (red-violet-red)
1-19 2 6.8 K ohm 1/2 watt (blue-gray-red)
1-21 3 15 K ohm 1/2 watt (brown-green-orange)
1-25 2 47 K ohm 1/2 watt (yellow-violet-orange)
1-26 14 100 K ohm 1/2 watt (brown-black-yellow)
1-29 1 220 K ohm 1/2 watt (red-red-yellow)
1-30 2 270 K ohm 1/2 watt (red-violet-yellow)
1-33 4 470 K ohm 1/2 watt (yellow-violet-yellow)
1-35 12 1 megohm 1/2 watt (brown-black-green)
1-37 2 2.2 megohm 1/2 watt (red-red-green)
1-44 4 2.2 K ohm 1/2 watt (red-red-red)
1A-2 2 1 K ohm 1 watt (brown-black-red)
1A-5 1 22 K ohm 1 watt (red-red-orange)
1A-7 1 47 K ohm 1 watt (yellow-violet-orange)
4-2 2 100 K ohm 1/2 watt (low noise)
4-3 2 330 K ohm 1/2 watt (low noise)
1
1
1
1
1
1
2
HMODC)
2
2
2
2
Miscellaneous