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Portable Network Graphic  |  1998-12-27  |  15KB  |  800x800  |  4-bit (3 colors)
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OCR: R1 330 VERT VQ H HQ ++ R2 330 HOR Amiga A2000 Mouse C= Commodore A904 25 152 +5V R11 10k R9 100k R10 100k R7 100k R8 100k R12 270 6 5 4 11 10 3 b IC1 a 2 13 d LM339 9 14 8 C 12 R13 R14 R15 R16 4 x 3k3 L1 22μH C1 C2 2 x 47μ VQ J1 R5 R6 R3 R4 SW1 SW3 gnd NOTE: R3, R4, R5,R6, are a parallel combination of 1k5 and 3k3 = 1031 ohms. IC1 = HA17339 which is a National Semiconductor LM339, Quad Precision Voltage Comparator. H HQ B1 B3 30- 60 20 ¹0 50 CABLE DB9F -07 -03 -01 -02 -06 -05 -09 -08 shield drain.