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HSR Autofader Update (Part 2)

Additional circuitry to make last month's project 'fade in'. Plus, veroboardlayouts that you can actually see! All will be revealed...


Further to our publication of the Autofader circuit last month, we have had a few queries asking if the circuit could be adapted to produce fade-ins. To this end, the circuit in Figure 1 describes a modification that should enable both fade-ins and fade-outs to be produced with totally independent fade times.

Figure 1. Autofader circuit modification.


To ensure that the capacitor C5 is in the correct state of charge, the fade switch should be set to the appropriate position and then the reset button depressed for a couple of seconds.

There should be plenty of room in the original metal case for the additional components and the extra reset switch required may be a biased toggle type or a momentary pushbutton.



Previous Article in this issue

Home Studio Recordist

Next article in this issue

Echoes From The Observatory


Home & Studio Recording - Copyright: Music Maker Publications (UK), Future Publishing.

 

Home & Studio Recording - Dec 1984

Donated & scanned by: Mike Gorman

Topic:

Electronics / Build


Series:

Autofader Project

Part 1 | Part 2 (Viewing)


Feature by Paul White

Previous article in this issue:

> Home Studio Recordist

Next article in this issue:

> Echoes From The Observatory ...


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