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diameter and fall time of the coins to identify them and it's fully programmable so you're not limited to any particular type of currency
More than one Flip Flop can be used in series to act as an EEPROM for holding small amount of data
2 X AA Battery Holder with Cover and Barrel Socket with 10 cm cable
L7812CV +Ve Voltage Regulator (12V -1A) is a three terminal linear voltage regulator IC with a fixed output voltage of 12V which is useful in a wide range of applications
IRF510 MOSFET N Channel Transistor
Precision PCB Stand (High Quality) Transformer (9 v 1 A) diameter and fall time ofIntroduction : High quality precision PCB stand. Features : Aluminum PCB Stand.