aion Aurora Deluxe Handmatig - Pagina 6

Blader online of download pdf Handmatig voor {categorie_naam} aion Aurora Deluxe. aion Aurora Deluxe 11 pagina's. Compressor with clean blend

BUILD NOTES

Transistor substitutions
The original Compressor Plus uses MMBT6429 transistors, which do not have a current-production
through-hole equivalent. They are medium-gain low-noise transistors that are very close in specification
to the 2N5088 or BC549C.
The Aurora Deluxe PCB uses the USA E-B-C convention for Q1-Q5, so the 2N5088 will be a direct fit.
The BC549C or other European C-B-E convention transistors will need to be rotated 180 degrees from
the PCB silkscreen.
IC substitutions
The very first version of the Compressor Plus used
NE5532
for IC2 and IC3, the two dual op-amps.
They soon switched to RC4558P, which are still used in current models. The NE5532 has lower noise
and a better slew rate, but significantly higher current draw. The RC4558P is perfectly adequate for the
application and is recommended to use in this project, but you can use either type, or whatever else you
want such as a the TL072 or OPA2134.
The LM13700N was obsoleted recently in through-hole format, but is still readily available, including
from major distributors like Mouser. The
NE5517N
is a second-source substitute that will perform
identically, and is available from Aion FX.
AURORA DELUXE COMPRESSOR
6