Akashic Guitar effects circuit lookup
LOWCUTGAINLEVEL1LEVEL2

1590BB · 4 knobs

PCB Guitar Mania

Podcaster

Based on the Hudson Electronics Dual Broadcast· 4 other boards clone it

Category
Fuzz· Germanium Pre-amplifier
Controls
Lowcut · Gain · Level1 · Level2
Difficulty
Average
Price
€11.90out of stock

Heads up Builders widely report inconsistent quality from PCB Guitar Mania boards, and whether a given board works is a gamble. Read recent forum reports before ordering.

From the vendor

Project overview

Inspired by Hudson Dual Broadcast. This germanium Fuzz/pre-amplifier has roots in the classic broadcast consoles of the 1960s.

Introduction

The Podcaster is a pretty unique circuit, one of those very few fuzzes we can’t tag as ‘Big muff,’ ‘Tone Bender,’ ‘Fuzz Face.’ This original Fuzz Preamp is a transformer-coupled, discrete Class-A germanium pre-amplifier based on the classic broadcast consoles of the 1960s. If you are looking for some Fresh sounding fuzz, this pedal is for you!

It cleans up nicely with the volume knob of your guitar and shines the best with your neck pickup, delivering dynamic compression and subtle thickening of the mid-range.

Are you looking for more headroom? No worries, the Podcaster has an internal charge pump that allows you via toggle to run on 9v or 24v with your standard power supply.

Want more gain and an extra channel? This circuit has a second footswitch to give you an additional channel with more gain and volume control.

Bear in mind this project requires a taller 1590BB enclosure (43mm) since the transformer is quite big. Some stores call them ‘tall,’ some 1590BBM, but double-check because it will not fit in your stands sized enclosure.

The transformer might need some slight bend on its leg. The footprint on the PCB turned out to be a little wide.

We used a test this circuit with some alternative Russian germanium PNP transistors with an HFE of 90 in our build.

Controls

• Gain

• Level1

• Level2

• Lowcut

For further analysis on this circuit take a look at this thread on Free Stomp Boxes Forum.

For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

Podcaster – Building Docs

Podcaster – Drilling Template

Schematic

The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 50 rows

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RefValueNormalizedTypeNotes
Resistors 16
R1210r10
R915k15k
R141k1k
R11m1M
R2220k220k
R1033k33k
R1533k33k
R84k74.7k
R114k74.7k
R134k74.7k
R1656k56k
R35k65.6k
R55k65.6k
R65k65.6k
R75k65.6k
R468r68
Capacitors 16
C51n1n
C1330n330n
C7330n330n
C2330p330p
C4100u100u
C6100u100u
C9100u100u
C310u10u
C1110u10u
C1210u10u
C1310u10u
C1410u10u
C15120u120u
C16120u120u
C1047u47u
C8330u330u
Diodes 6
D215v15V
D01n58171N5817
D41n58171N5817
D61n58171N5817
D71n58171N5817
D81n58171N5817
Transistors 2
Q1BC549CBC549C
Q2OC71OC71
ICs 1
IC1LT1054LT1054
Transformers 1
T1TY141PTY141P
Potentiometers 4
LOWCUT10k AA10k
GAIN250k AA250k
LEVEL125k BB25k
LEVEL225k BB25k
Switches 2
VOLTAGESPDT ON/ONSPDT ON/ON
BYPASS3PDT3PDT
LEDs 2
LED13mm Red LED3MM RED LED
LED23mm Red LED3MM RED LED

Other boards based on the Hudson Electronics Dual Broadcast