R1 68 až 270 kOhm, viz textR2, R3 330 OhmC1 10 µF/16 VC2 1 µF/16 VIO1 NE555D1 až D6 LED 5 mm, libovolné barvyany colours deska s plošnými spoji bcs23Pouze jednou / Only oneR4 470 Ohm až 1 kOhmD7 LED 5 mm, libovolné barvyany coloursnapájecí zdroj / power supply

R1 22 kOhm D1, D2, D4 1N4001 R2, R4 2,2 kOhm D3 BZX83V003.9 R3 180 kOhm T1, T2 BC238 (BC546, …) C1 1000 µF/ 16 V T3 BC639 C2, C4 10 µF/50 V IO1 GI123 (SAB123) C3 100 nF/63 V, fóliový / film Deska s plošnými spoji bcs19 Reproduktor / Speaker 8 Ohm

Build-in charger for instruments powered single Li-ion or Li-pol accumulator. If external charge voltage not conected to charger, back current from accu to charger is very small (not measured ordinary multimeters)

This is a 2 LED flashing circuit. It is based on an analog flip flop circuit. This particular circuit was calculated to use blue or white 3V LED with a 12V power supply. If you are using red green or yellow LED, replace the 1K resistors for a 2.2K. This circuit will flash the led [...]

Very important: Use the proper wattage (See Schematic) for the resistors. The circuit was calculated to have the maximum LED brightness with minimum heat from the 12K resistor. With a “12Kohm / 2W” flame proof resistor. It will be slightly warm to the touch.

This is circuit MOSFET power amplifier OCL, Output 100w , use mosfet k134+j49 or Mosfet J162 + K1058 Output 112W at Speaker 8 OHM. Power Supply +56V/-56V 4A /Ch.

Voice manipulation device specially intended for props 9V Battery operation. Parts: P1______________10K Log. Potentiometer R1,R10__________10K 1/4W Resistors R2_______________1K 1/4W Resistor R3______________50K 1/2W Trimmer Cermet or Carbon R4,R6,R7,R14___100K 1/4W Resistors R5______________47K 1/4W Resistor R8______________68K 1/4W Resistor R9_______________2K2 1/2W Trimmer Cermet or Carbon R11_____________33K 1/4W Resistor R12_____________18K 1/4W Resistor R13_____________15K 1/4W Resistor C1,C2,C3,C8,C9_100nF 63V Polyester Capacitors C4______________10µF [...]

Three LEDs signal bumper-barrier distance Infra-red operation, indoor use. Parts: R1_____________10K 1/4W Resistor R2,R5,R6,R9_____1K 1/4W Resistors R3_____________33R 1/4W Resistor R4,R11__________1M 1/4W Resistors R7______________4K7 1/4W Resistor R8______________1K5 1/4W Resistor R10,R12-R14_____1K 1/4W Resistors C1,C4___________1µF 63V Electrolytic or Polyester Capacitors C2_____________47pF 63V Ceramic Capacitor C3,C5_________100µF 25V Electrolytic Capacitors D1_____________Infra-red LED D2_____________Infra-red Photo Diode (see Notes) D3,D4________1N4148 75V 150mA [...]