UK-electronic Miniverb MEK Sounddesign User manual

UK-electronic ©2015
Manual Miniverb V2 with the Belton BTDR-2-X Modul
Page 1…2.........................................Introduction, Short circuit description
Page 3…4.........................................Basics
Page 5…6.........................................Bill of material
Page 5... .........................................Soldering the pcb
Page 8....11.......................................Drill template, Circuit, External wiring
2015 © UK-electronic

Thank you for choosing a kit from our company. The kit has been compiled with all diligence for you
and tested. However, should any deficiencies occur with respect to the quality or errors in the
description, we would ask you to inform us of this mailto:(techni[email protected])
hort circuit description :
In the below-described kit it comes to building a digital reverb pedal, which is used as a basis, the
BTDR- module of Belton / Accutronic.
The heart of the circuit is the BDTR-2 module which contains all of the components, such as A / D
converter, delay, and D / A converter incl. the associated filter (3xPT2399). The module has as its
predecessor 2 separate audio outputs, one of which can use a sound control (tone control) is unused.
The module requires only a voltage of + 5V that is generated on the circuit board by a 8L05 from the
9V supply voltage.
The only active components, a dual TL0 2 op amp is used, which amplifies the input signal by a factor
of 2 and summed at the output with the original signal.
As controls one potentiometers are used, which the reverb level (Mix). Switching the effect onf/off
with a hardware True bypass using a 3PDT switch and LED indicator.
Due to the compact double side through-hole board, the structure is relatively simple and is described
on the following pages.
2015 © UK-electronic

Some connection of components
TL072
Widerstand DPDT chalter
BC 549C
2015 © UK-electronic

Color table for resistors MF207 FTE52 1% and a example
2015 © UK-electronic

Bill of material
Quantity Description
Resistors
1 22R (red/red/black/gold/brown)
1 1K (brown/black/black/brown/brown)
1 2K2 (red/red/black/brown/brown)
2 5K1 (green/brown/black/black/brown)
3 10K (brown/black/black/red/brown)
1 20K (red/black/black/red/brown)
1 22K (red/red/black/red/brown)
2 100K (brown/black/black/orange/brown)
1 200K (red/black/black/orange/brown)
1 2M2 (red/red/black/yellow/brown)
1 Trim pot CA6V 10K
Capacitors
1 Ceramic capacitor 4 pF (4 )
1 Ceramic capacitor 100pF (101)
1 MKT 0.022µF = 22nF (223)
2 MKT 1µF = 1000nF (105)
1 Elektrolytic capacitor RASM 4 µF/16V
1 Elektrolytic capacitor RASM 100µF/16V
1 Elektrolytic capacitor RA 220µF/ 10V
Diodes
1 Shottky-Diode 1N581 or 5818 (Cathode = line)
1 LED 3mm Red Low current
chaltkreise
1 Reverb Modul Belton BTDR-2-X (your choose)
1 Voltage regulator 8L05- 5V/100mA
1 Dual OPV TL0 2
Potentiometer
1 16mm Potentiometer 50K-B (linear) – Reverb
Mechanic
1 Printboard Miniverb V2 DKL
2 Audio jack PCB-version (Mono- Output/Stereo- Input)
1 3PDT Switch Standard SL
1 DC-jack ROKA isolated pcb-version
1 LED spacer 22mm
1 Some coloured wire/ isolated hose/ heat shrink
1 Battery connector soft
1 Socket LC 08
Soldering tin is not part of delivery
2015 © UK-electronic