EESchema Schematic File Version 4 LIBS:trav-cache EELAYER 26 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 2 2 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L dk_Transistors-Bipolar-BJT-Single:2N2222 Q1 U 1 1 5D5E29A2 P 2475 2125 F 0 "Q1" V 2822 2125 60 0000 C CNN F 1 "2N2222" V 2716 2125 60 0000 C CNN F 2 "digikey-footprints:TO-18-3" H 2675 2325 60 0001 L CNN F 3 "https://www.centralsemi.com/get_document.php?cmp=1&mergetype=pd&mergepath=pd&pdf_id=2N2221.PDF" H 2675 2425 60 0001 L CNN F 4 "2N2222CS-ND" H 2675 2525 60 0001 L CNN "Digi-Key_PN" F 5 "2N2222" H 2675 2625 60 0001 L CNN "MPN" F 6 "Discrete Semiconductor Products" H 2675 2725 60 0001 L CNN "Category" F 7 "Transistors - Bipolar (BJT) - Single" H 2675 2825 60 0001 L CNN "Family" F 8 "https://www.centralsemi.com/get_document.php?cmp=1&mergetype=pd&mergepath=pd&pdf_id=2N2221.PDF" H 2675 2925 60 0001 L CNN "DK_Datasheet_Link" F 9 "/product-detail/en/central-semiconductor-corp/2N2222/2N2222CS-ND/4806844" H 2675 3025 60 0001 L CNN "DK_Detail_Page" F 10 "TRANS NPN 30V 0.8A TO-18" H 2675 3125 60 0001 L CNN "Description" F 11 "Central Semiconductor Corp" H 2675 3225 60 0001 L CNN "Manufacturer" F 12 "Active" H 2675 3325 60 0001 L CNN "Status" 1 2475 2125 0 -1 -1 0 $EndComp Text GLabel 2475 2925 2 39 Input ~ 0 CMOS_Square_Wave Text GLabel 1700 2025 0 39 Input ~ 0 Discount_Function_Generator_Output Wire Wire Line 1700 2025 1775 2025 $Comp L Device:R_US R1 U 1 1 5D5E331F P 2475 2575 F 0 "R1" H 2543 2621 50 0000 L CNN F 1 "10k" H 2543 2530 50 0000 L CNN F 2 "" V 2515 2565 50 0001 C CNN F 3 "~" H 2475 2575 50 0001 C CNN 1 2475 2575 1 0 0 -1 $EndComp Wire Wire Line 2475 2425 2475 2375 Wire Wire Line 2475 2725 2475 2775 $Comp L power:GND #PWR03 U 1 1 5D5E33E5 P 1775 2375 F 0 "#PWR03" H 1775 2125 50 0001 C CNN F 1 "GND" H 1780 2202 50 0000 C CNN F 2 "" H 1775 2375 50 0001 C CNN F 3 "" H 1775 2375 50 0001 C CNN 1 1775 2375 1 0 0 -1 $EndComp $Comp L power:+VDC #PWR04 U 1 1 5D5E3B42 P 3450 1925 F 0 "#PWR04" H 3450 1825 50 0001 C CNN F 1 "+VDC" H 3450 2200 50 0000 C CNN F 2 "" H 3450 1925 50 0001 C CNN F 3 "" H 3450 1925 50 0001 C CNN 1 3450 1925 1 0 0 -1 $EndComp $Comp L power:-VDC #PWR02 U 1 1 5D5E3B97 P 1775 1800 F 0 "#PWR02" H 1775 1700 50 0001 C CNN F 1 "-VDC" H 1775 2075 50 0000 C CNN F 2 "" H 1775 1800 50 0001 C CNN F 3 "" H 1775 1800 50 0001 C CNN 1 1775 1800 1 0 0 -1 $EndComp Wire Wire Line 1775 1800 1775 2025 Connection ~ 1775 2025 Wire Wire Line 1775 2375 1775 2025 $Comp L Device:R_US R3 U 1 1 5D5E4126 P 2975 2025 F 0 "R3" V 2770 2025 50 0000 C CNN F 1 "10K" V 2861 2025 50 0000 C CNN F 2 "" V 3015 2015 50 0001 C CNN F 3 "~" H 2975 2025 50 0001 C CNN 1 2975 2025 0 1 1 0 $EndComp Wire Wire Line 2825 2025 2675 2025 Wire Wire Line 3125 2025 3450 2025 Wire Wire Line 3450 2025 3450 1925 $Comp L Device:C C5 U 1 1 5D5E422C P 2850 2575 F 0 "C5" H 2965 2621 50 0000 L CNN F 1 "100nF" H 2965 2530 50 0000 L CNN F 2 "" H 2888 2425 50 0001 C CNN F 3 "~" H 2850 2575 50 0001 C CNN 1 2850 2575 1 0 0 -1 $EndComp Wire Wire Line 2475 2775 2850 2775 Wire Wire Line 2850 2775 2850 2725 Connection ~ 2475 2775 Wire Wire Line 2475 2775 2475 2925 Wire Wire Line 2850 2425 2850 2375 Wire Wire Line 2850 2375 2475 2375 Connection ~ 2475 2375 Wire Wire Line 2475 2375 2475 2325 $Comp L Device:R_US R2 U 1 1 5D5E45E2 P 2025 2025 F 0 "R2" V 1820 2025 50 0000 C CNN F 1 "470" V 1911 2025 50 0000 C CNN F 2 "" V 2065 2015 50 0001 C CNN F 3 "~" H 2025 2025 50 0001 C CNN 1 2025 2025 0 1 1 0 $EndComp Wire Wire Line 1775 2025 1875 2025 Wire Wire Line 2175 2025 2275 2025 $EndSCHEMATC