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Project Specific Discussions => Preamplifiers => Topic started by: pmercer on December 05, 2019, 10:16:18 AM

Title: Altec 9470A build
Post by: pmercer on December 05, 2019, 10:16:18 AM
I have the set of 6 in trays with the power supply. Goal is to wire up 6 JLM Go Betweens, 150/600 switches on the inputs, and the Bourns 600 T pads on the outs. Question is, I want to take a tap off the +24VDC from the built in power supply, bring it up to 48 for the phantom on the Go Betweens...how would I do this? Manual says the supply can support 15 pres and puts out 2A, each module shouldn't exceed 130ma so I'm only at 780ma with the pres themselves.
http://www.studiomanuals.com/docs/altec/Altec-9470A-MicPre.pdf
Thanks!
Title: Re: Altec 9470A build
Post by: EmRR on December 05, 2019, 11:04:41 AM
Add one of the small Meanwell 48V enclosed switchers to the back of the rack.  I've written about them elsewhere here. 
Title: Re: Altec 9470A build
Post by: pmercer on December 05, 2019, 11:53:46 AM
Thanks Doug...any specific model you recommend? I want to come straight off the +24vdc...
Title: Re: Altec 9470A build
Post by: EmRR on December 05, 2019, 03:18:54 PM
no, separate supply from the wall AC.