RANDOM*SOURCE
RANDOMSOURCE.NET
3
Serge RING
Please note:
•
The RING requires careful calibration for best results. A 2-channel oscilloscope is higly recommended,
if not required.
•
The module requires a couple of larger capacitors (10uF and 4.7uF) and provides footprints for WIMA
film caps. You should be able to substitute other types (e.g. bipolar electrolytics for audio use), however,
these are untested.
•
If the main pcb already includes 3 large SMT capacitors
in (1uF, black and silver cubes) -
most likely this is the case -, you do not need to install any 1uF capacitors in through-hole - i.e.
you
can leave the corresponding 1uF through-hole footprints empty
.
•
Use antistatic precaution - try to avoid touching the SMT parts.
•
Board is designed to be powered by a +/-12V stabilized PSU only. (+/-15V is untested).
Bill of Materials
Capacitors (min. 35V, 5mm lead spacing)
3 10uF
FILM / PET, 5mm
WIMA MKS2B051001N00JSSD (5% recommended)
1 4.7uF
FILM / PET, 5mm
WIMA MKS2 or similar, 5% recommended
3
1uF
FILM / PET, 5mm
WIMA MKS2 or similar -
ONLY IF NOT ALREADY INSTALLED
IN SMT!
Trimmpots
1 1k
Multiturn
e.g. Bourns 3296Y-1-102LF or Vishay T93YB102KT20
1 100k
Multiturn
e.g. Bourns 3296Y-1-104LF or Vishay
1 100k
Single-Turn
e.g. Bourns 3362P-1-104LF or whatever fits)
Misc
1 Euro Power
header
MTA-100 power connector, Reichelt: WSL 10G
5 Thonkiconn
Jacks
3.5mm Jack Sockets (PJ301M-12) from Thonk
4 Potentionmeter
50k
linear (B50K)
Alpha 9mm vertical pcb mount
available from Thonk, Tayda, Mouser ...
B100K should also work
1 Resistor 22k or
24k
OPTIONAL to adjust the taper of the
MODE pot
Can be either TH (0207) or SMT (0805, 1206)
1
1
SIL header 6pol
SIL header 5pol or 4pol (check markings if using 4pol)
pin connectors, linking main pcb to component
pcb - using precision strips allows to break off
pieces as needed
4 S 8 matching screws (M3)
10mm or whatever matches the SIL headers /
connectors
