From bruce@ashbysolutions.com Wed Oct 10 06:59:11 2001
Subject:Re: Merge box problem

Hakon,

>Right... But I can still use an external power supply, if possible, and get
>it to work just fine, can I? Anyway, I'll receive my new Midiman merger in a
>few days, so I hope I don't have to get new master keyboards in order to use
>a dual manual setup with the V5.

You can always use an AC-powered merger. My point was that line-powering
is not in the MIDI spec, so any manufacturers' comments about "designing it
properly" are misleading. In fact, if you use the sample circuit shown in
the v1.0 spec, you CAN'T line-power a device; all of the available current
is needed for the MIDI receiver. In most cases, line-powering works, but
there are no absolute guarantees.

Regards,

-BW

--
Bruce Wahler
Design Consultant
Ashby Solutions™
www.ashbysolutions.com
CloneWheel Support Group moderator
978.386.7389 voice
978.964.0547 fax
bruce@ashbysolutions.com