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Sch BOM

R1

82R

R2

1M

R3

1M

R4

1M

R5

5K1

R6

470K

R7

1M

R8

1M

R9

100R

270R

R10

5K1

R11

1M

510K*

R12

1M

R13

330R

360R

R14

5K1

R15

47K

R16

82K

R17

10K

R18

10K

R22

1M

R23

1M

R24

5K1

R26

47K

R27

2K2

R28

2K2

C1

47u

C2

100n

C3

22n

10n

C4

470p

C5

22n

10n

C6

1u

C7

10n

100n

C8

22n

C9

1n

2n2

C10

1n

empty

C11

1n

2n2

C12

1n

empty

C13

100n

C14

10u

Q1-4

BS170

D1

1N4001

D2

9.1v zener

D3

9.1v zener

GAIN

5KC

TONE

100KB

LEVEL

100KB

BOOST

5KC

SW1-2

3PDT

Main BOM is JTM45 version.

Tweaks for ‘59 Bassman in blue.

*520K in original. 510K is fine.

Summary of Contents for RockBox

Page 1: ...RockBox Full on Rock Distortion with a nice post Boost PedalParts co uk ...

Page 2: ... 1M R23 1M R24 5K1 R26 47K R27 2K2 R28 2K2 C1 47u C2 100n C3 22n 10n C4 470p C5 22n 10n C6 1u C7 10n 100n C8 22n C9 1n 2n2 C10 1n empty C11 1n 2n2 C12 1n empty C13 100n C14 10u Q1 4 BS170 D1 1N4001 D2 9 1v zener D3 9 1v zener GAIN 5KC TONE 100KB LEVEL 100KB BOOST 5KC SW1 2 3PDT Main BOM is JTM45 version Tweaks for 59 Bassman in blue 520K in original 510K is fine ...

Page 3: ...l tag off the pots to mount them flush in the box You MUST use some kind of heat sink on the legs of the diodes and the BS170s when soldering They aren t keen on heat Any more than 3 4 seconds of iron and they re toast ALL the components mount on the top side of the board It s also recommended that all wires go this side thus cutting down the risk of anything shorting on the lid of the enclosure w...

Page 4: ...been made deliberately a little bigger than required so there s a bit of slack for placement If you ve ordered a pre drilled enclosure the holes for the footswitches are 1mm bigger than would normally be supplied Wiggle room is always good To attach the footswtiches to the board first put them in place in the enclosure Don t fully tighten them just enough to hold them in place Now place the PCB do...

Page 5: ...om the board which is a pain JACK SOCKETS DC SOCKET GND V GND SIGNAL Ignore the third tag you only need that if wiring up for battery SIGNAL is JACK IN and JACK OUT on the PCB Each socket has its own GND connection conveniently placed Plug in Go Do remember to turn all the knobs fully counterclockwise before you start This thing kicks out some serious volume If it works crack on and get it in the ...

Page 6: ...e PCB When you come to box up your lovely new circuit get the pots in place first Then the jacks Now slide your LEDs all the way into the PCB long leg to square pad and bend the legs ever so slightly so they don t fall out Alternatively put a little bluetac on there Now locate your footswitches into place and tighten When everything is secure let your LEDs slide down into the holes use some needle...

Page 7: ...tive Sleeve Positive That s the same as your standard pedals Boss etc and you can safely daisy chain your supply to this pedal PedalParts co uk NOTE Effect order is Distortion Boost Wow look at that You can use either circuit on its own Click in the BOOST section and you re rockin a Boner Boost NICE This is how the whole shebang is connected within the PCB traces NOTE This is just for illustration...

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