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Enclosure not stated · 1 knob

Tagboard Effects

Keeley Katana BoostVerified

Based on the Keeley Katana· 11 other boards clone it

Category
Boost
Controls
Volume
Build
Vero
Layout
Verified · Tagboard Effects marks it as built and working
Tags
Booster, Charge pump, Keeley
Open the layout at Tagboard Effects

From the post

Layout updated. If you want to build this now I would suggest you build this version

http://tagboardeffects.blogspot.com/2014/02/keeley-katana-boost-layout-rev-2.html

Vero layout for this popular pedal with built in charge pump to provide the required 18V from a 9V supply.

UPDATE (09-02-2012):

The schematic that this layout was created from has been shown to be incorrect. In the scheme the switchable 10u cap was linked to the source of Q2, this in fact needs to link to the source of Q1. Apologies to anyone who has made this up, but it is a quick fix, just unsolder the cable and re-solder it into it's new home as per the updated layout below:

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.

Parts list 15 rows

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Check before you build · 10 values the reader of this layout was not sure of
  • all on-board values are read from text about 4 px tall
  • 560R x2 (beside Q1 and at the bottom centre): could be 500R or 680R
  • 4K7 x3 (left of Q1, beside Q2, top right): fairly legible
  • 1M x4: fairly legible
  • 220n x3 film caps (left by the input, two between Q1 and Q2): could be 22n or 100n
  • 100p small ceramic at lower left: illegible, guess
  • small ceramic above the centre film caps: illegible
  • 10uF electrolytics x2 at left: illegible, guess
  • 100uF electrolytic at top right: illegible, guess
  • IC: legend appears to print 'IC76605', taken as ICL7660S
RefValueNormalizedTypeNotes
Resistors 3
×41M1Mread from the layout by eye
×34K74.7kread from the layout by eye
×2560R560read from the layout by eye
Capacitors 7
×3220n220nread from the layout by eye
×1100p100pceramic; read from the layout by eye
×1??ceramic, unreadable; read from the layout by eye
×210uF10uelectrolytic; read from the layout by eye
×1100uF100uelectrolytic; read from the layout by eye
×110uF10uelectrolytic, on the switch; read from the layout by eye
×1150nF150non the switch; read from the layout by eye
Diodes 1
×21N58171N5817read from the layout by eye
Transistors 1
×22N54582N5458JFET, Q1 Q2; read from the layout by eye
ICs 1
ICICL7660SICL7660Slegend: IC76605; read from the layout by eye
Potentiometers 1
VolumeB250KB250kPotentiometerread from the layout by eye
Switches 1
SwitchDPDT on/onDPDT ON/ONlegend: DPDT 2 position; read from the layout by eye

Other boards based on the Keeley Katana