Delptronics Thunderclap - Manual (Page 3)

Thunderclap Kit Instructions V2
Page 3 of 11
Schottky Diode (±)
There are 8 diodes, but D1 is different. D1 is a Schottky diode and has “BAT85” printed on it in very small type. An
easier way to tell D1 apart is that D1 is loose, while the other seven diodes are connected together on a piece of
tape.
Diodes are red and black glass. When inserted into the PCB, the black stripe on the diode must line up with the
stripe on the part outline on the PCB. The diode leads need to be bent close to the body of the diode. Hold the diode
body and press down on each lead right at the body to make a U shape.
1N4148 Diodes (±)
The 7 1N4148 (non-Schottky) diodes are marked on the PCB as D2 through D8. Insert and solder them the same
way you did for D1.
Resistors
The value of a resistor is indicated by colored stripes on its body. In all cases the fifth stripe is brown (indicating 1%
tolerance), so that stripe has been omitted from the chart below.
The resistor leads need to be bent close to the body of the resistor. Hold the resistor body and press down on each
lead right at the body to make a U shape.
*Note that R13 can be one of two different values depending on the desired output level. For a 9V powered pedal
with line level output, use a 100K resistor. For a 12V or 15V powered synthesizer module, use a 470K resistor. With
the volume at full and the other knobs at 11 o’clock (classic hand clap sound), line level output will be approximately
2.4 VPP, and synth level output will be approximately 9.4 VPP.
Quantity Description Marking Refdes
3 220R Resistor red red black black R7, R9, R10
3 1K Resistor Brown black black brown R5, R15, R18
4 10K Resistor Brown black black red R6, R8, R12, R14
2 22K Resistor Red red black red R4, R11
3 47K Resistor Yellow violet black red R1, R2, R3
1 220K Resistor Red red black orange R17
1 2.2M Resistor Red red black yellow R16
1 100K Resistor Brown black black orange R13* (line level ≈ 2.5 VPP)
1 470K Resistor Yellow violet black orange R13* (synth level ≈ 9.4 VPP)
Ceramic Capacitors
Ceramic capacitors are very small tan or blue blobs. Their value is marked on them with a three digit code. The
marking is rather small, so you may have to use a magnifying glass to read them.
Quantity Description Marking Refdes
1 0.0022 µF Ceramic Capacitor 222 C7
2 0.0047 µF Ceramic Capacitor 472 C5, C6
1 0.047 µF Ceramic Capacitor 473 C12
4 0.1 µF Ceramic Capacitor 104 C3, C4, C8, C9
2 1 µF Ceramic Capacitor 105 C10, C13