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Ramsey Electronics UT5A Instuction Manual page 14

Universal timer

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tors have no polarity so they can be installed in either direction.
 6. Install C5, a 0.1uF ceramic capacitor (marked 104).
 7. Install C4, another 0.01uF ceramic capacitor (marked 103).
 8. Install C6, the last 0.01uF ceramic capacitor (marked 103).
 9. Install Q1, the transistor marked 2N3904. this part must be mounted
in a specific direction. Match the shape of the transistor to the outline
shown on the parts location diagram or the silkscreen on the circuit board.
Mount it as close to the board as possible
10. Install Q3, another 2N3904 transistor. Follow the same care of instal-
lation as you did with Q1.
11. Install Q2, the last 2N3904 transistor.
12. Install R1, a 10k ohm resistor (marked brown-black-orange). Resis-
tors are like ceramic capacitors they have no polarity. They can be in-
stalled in either direction. All resistors in this kit are stand up resistors.
The pad with the silkscreen circle is the pad that the body of the part sits
on.
13. Install R3, another 10k ohm resistor (marked brown-black-orange).
14. Install R12, yet another 10k ohm resistor (marked brown-black-
orange).
15. Install R10, still another 10k ohm resistor (marked brown-black-
orange).
16. Install R9, a 1k ohm resistor (marked brown-black-red).
17. Install R11, the last 10k ohm resistor (marked brown-black-orange).
18. Install R2, a 1k ohm resistor (marked brown-black-red).
19. Install R8, a 100k ohm variable resistor (marked 104). This part has
three legs and will only fit easily in one direction.
20. Install S1, a SPST Push Button switch. This part will fit in the board in
two different directions, either one will work.
21. Install S2, an other SPST Push Button switch.
22. Install JMP2, a 2 pin header.
23. Install JMP3, another2 pin header.
24. Install JMP4, another2 pin header.
UT5A  16

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