Hi Tim > It > is caused by the transistor (Q5) which is used to 'switch' between the > decay and sustain phases: basically it doesn't switch off completely, > allowing a very small current to pass through, thus causing the > sustain level to drift downwards over time (I measured about a 0.2V > drop in about 35 secs). Ok, now I remember; this is known from many similar circuits. > If you want a stable sustain level over time, > you cannot do it with an A-140! Assumingly true. Florian -- Florian Anwander |ConSol* HP-Support Tel. +49.89.45841-133 |Consulting&Solutions Software GmbH Fax +49.89.45841-139 |Franziskanerstr. 38, D-81669 München email: florian.anwander@consol.de |http://www.consol.de
Message
Re: [Doepfer_a100] Re: Manual inconsistencies/omissions/errors
2002-03-13 by Florian Anwander