FuzzDog Vintage POW! User manual

Vintage POW!
Clone of Colorsound’s
Overdriver / Power Boost
PedalParts.co.uk

Schematics
Subtle differences between the two, in the connections from Q1 and Q2 emitters.
Overdriver runs at 9v, Power Boost at 18v (though it works ok at 9v).
OVERDRIVER
POWER BOOST

BOM
OD PB
R1 120K 120K
R2 6K8 4K7
R3 150K 150K
R4 Jumper 470R
R5A Empty 12K
R5B 12K Empty
R6 1K8 1K8
R7 4K7 4K7
R8 39K 39K
R9 5K6 5K6
R10 4K7 4K7
R11 33K 33K
R12 150K 180K
R13 1K8 3K9
R14 470R 1K
R15 470R 1K2
RLED 2K2 4K7
OD PB
C1 220n 220n
C2 22u 22u
C3 22u 22u
C4 220p 220p
C5 10u 10u
C6 10n 10n
C7 10n 10n
C8 100n 100n
C9 100n 100n
C10 10u 22u
C11 220n 220n
C12 22u 10u
C13 47u 47u
1-3 BC109 or
BC169C
D1 1N4001
DRIVE 5KC*
TREB 100KB
BASS 100KB
VOL 100KA
*Originally 10KB but all the control is bunched in the
last couple of degrees of turn. 5KC works much better.
CB
E
**Note position of Base, Emitter and Collector
for 1-3. More about that overleaf.
For R4 in the
Overdriver, place a
wire across the two
pads to join them
together

Wiring shown overleaf will disconnect the battery
when you remove the jack plug from the input, and
also when a DC plug is inserted.
Snap the little metal tag off the pots to mount
them flush in the box.
You UST use some kind of heat sink on the legs
of the transistors when soldering. They aren’t
keen on heat. Any more than 3-4 seconds of iron and
they’re toast.
Recommended assembly order:
Resistors, Caps, Transistors, Wires, Pots
I’ve incorporated the Current Limiting Resistor for the
LED into the board for your pleasure.
1 2 3
BCE
TRANSISTORS
The board was designed to accommodate
BC109 transistors. To use BC169C you’ll
have to do some leg twisting.
BC169C pinout >>>>>

Test the board!
Once you’ve finished the circuit it makes sense to test is before
starting on the switch and LED wiring. It’ll cut down
troubleshooting time in the long run. If the circuit works at this
stage, but it doesn’t once you wire up the switch - guess what?
You’ve probably made a mistake with the switch.
Solder some nice, long lengths of wire to the board connections for
9V, GND, IN and OUT. Connect IN and OUT to the jacks as shown.
Connect all the GNDs together (twist them up and add a small
amount of solder to tack it). Connect the battery + lead to the 9V
wire, same method. Plug in. Go!
If it works, crack on and do your switch wiring. If not... aw man. At
least you know the problem is with the circuit. Find out why, get it
working, THEN worry about the switch etc.
YRET
T
A
AT
B
NI UO TU

Wire it up - Overdriver 9V
The Board GND connections don’t all have to directly attach to the board. You can
run a couple of wires from the DC connector, one to the board, another to the IN
jack, then daisy chain that over to the OUT jack.
It doesn’t matter how they all connect, as long as they do.
This circuit is standard, Negative GND. Your power supply should be Tip Negative /
Sleeve Positive. That’s the same as your standard pedals (Boss etc), and you can
safely daisy-chain your supply to this pedal. Now... GO GET BOOSTED!
PedalParts.co.uk
L
E
D
BOARD
OUT
BOARD
9V
BOARD
GND
BOARD
GND
BOARD
GND
BOARD
INPUT
BATTERY
+
IN
OUT
L
E
D
BOARD
GND
BOARD
LED+
+
+

Wire it up - Power Boost 18V
The Board GND connections don’t all have to directly attach to the board. You can
run a couple of wires from the DC connector, one to the board, another to the IN
jack, then daisy chain that over to the OUT jack.
It doesn’t matter how they all connect, as long as they do.
This circuit is standard, Negative GND. Your power supply should be Tip Negative /
Sleeve Positive. That’s the same as your standard pedals (Boss etc), and you can
safely daisy-chain your supply to this pedal. Now... GO GET BOOSTED!
PedalParts.co.uk
L
E
D
BOARD
OUT
BOARD
9V
BOARD
GND
BOARD
GND
BOARD
GND
BOARD
INPUT
+
IN
OUT
L
E
D
BOARD
GND
BOARD
LED+
+
+
**If you’re only going to power it with an 18V
adapter just omit the battery snaps altogether