Heathkit HD 1420 Schematic 2
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Extracted text from Heathkit HD 1420 Schematic 2 (Ocr-read)
Page 1
Page 2
Heathkif
SEMICONDUCTOR IDENTIFICATION
HEATH MAY BE
COMPONENT PART REPLACED KEY
NUMBER NUMBER WITH NUMBER
DIODE
D101 412-633 5082-4484 A1
TRANSISTORS
0102 417-169 MPF105 A2
0103 4174375 2N3904 A3
INTEGRATED CIRCUIT
U101 442-96 MC149GG A4
CATHODE
(SHORTER LEAD)
Page 2
(Shown from the component side.)