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APOLLO PREAMP DRIVE MK. I

PARTS LIST

This parts list is also available in a spreadsheet format which can be imported directly into Mouser for
easy parts ordering. Mouser doesn’t carry all the parts (most notably potentiometers) so the second tab
lists all the non-Mouser parts as well as sources for each.

View parts list spreadsheet

→

PART VALUE

TYPE

NOTES

10M

Metal film resistor, 1/4W

3k3

Metal film resistor, 1/4W

3k3

Metal film resistor, 1/4W

12k

Metal film resistor, 1/4W

10M

Metal film resistor, 1/4W

3k3

Metal film resistor, 1/4W

3k3

Metal film resistor, 1/4W

100k

Metal film resistor, 1/4W

R10

10k

Metal film resistor, 1/4W

R11

10M

Metal film resistor, 1/4W

R12

3k3

Metal film resistor, 1/4W

R13

3k3

Metal film resistor, 1/4W

R14

130R

Metal film resistor, 1/4W

R15

47k

Metal film resistor, 1/4W

R16

12k

Metal film resistor, 1/4W

R17

12k

Metal film resistor, 1/4W

R18

62k

Metal film resistor, 1/4W

R19

82k

Metal film resistor, 1/4W

R20

100R

Metal film resistor, 1/4W

RPD

2M2

Metal film resistor, 1/4W

LEDR

4k7

Metal film resistor, 1/4W

270pF

MLCC capacitor, NP0/C0G

100n

Film capacitor, 7.2 x 2.5mm

100uF

Electrolytic capacitor, 6.3mm

100n

Film capacitor, 7.2 x 2.5mm

47n

Film capacitor, 7.2 x 2.5mm

100uF

Electrolytic capacitor, 6.3mm

4.7uF

Electrolytic capacitor, 4mm

4n7

Film capacitor, 7.2 x 2.5mm

Summary of Contents for Apollo Mk I

Page 1: ...ce from 1970 Overdrive Amp Emulation 1 0 0 2021 02 19 Actual size is 2 3 x 1 86 main board and 1 78 x 0 87 bypass board BUILD DIFFICULTY Intermediate This documentation is for the Mk I version of the...

Page 2: ...n amp platform Most people agree that the second version is superior but the hype surrounding the first version has given it a lasting reputation The WIIO was succeeded by the RAH which is largely the...

Page 3: ...8 3k3 Metal film resistor 1 4W R9 100k Metal film resistor 1 4W R10 10k Metal film resistor 1 4W R11 10M Metal film resistor 1 4W R12 3k3 Metal film resistor 1 4W R13 3k3 Metal film resistor 1 4W R14...

Page 4: ...1 1N4739A Zener diode 9V DO 41 Z2 1N4739A Zener diode 9V DO 41 Z3 1N4739A Zener diode 9V DO 41 Q1 BS170 MOSFET N channel TO 92 Q2 BS170 MOSFET N channel TO 92 Q3 BS170 MOSFET N channel TO 92 GAIN 500k...

Page 5: ...s the gain cuts some of the top end and makes it feel more amp like The Apollo Mk I adds a trimmer in series with the feedback resistor allowing the feedback to be varied to taste Global feedback does...

Page 6: ...S170 3k3 100uF GND GND 3k3 VB VA 4u7 100k 4n7 10n GND GND 10k 10n GND 470pF 100n 10M VB 1N4739A BS170 3k3 VA 3k3 130R GND GND 100uF 10uF 12k 2n2 2n2 12k 47k 470n 250k GND GND GND IN OUT RPD D1 C19 GAI...

Page 7: ...e of closed frame jacks like the Switchcraft 111X If you d rather use open frame jacks please refer to the Open Frame Jack Drill Template for the top side LED hole drill size assumes the use of a 5mm...

Page 8: ...APOLLO PREAMP DRIVE MK I 8 ENCLOSURE LAYOUT Enclosure is shown without jacks See next page for jack layout and wiring 125B...

Page 9: ...APOLLO PREAMP DRIVE MK I 9 WIRING DIAGRAM 125B IN V GND N C N C OUT PCB IN GND V V JACK GND JACK OUT IN GND GND PCB OUT...

Page 10: ...y as suggestions based on the experience and opinions of others Projects may be used for commercial endeavors in any quantity unless specifically noted No attribution is necessary though a link back i...

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