Ampex 440/1100/1200 Audio Cards?

Help Support GroupDIY:


Well-known member
Feb 3, 2015
I just acquired an Ampex 440B, and was doing a little research into upgrading the repro cards to be cleaner. I came across these old RTZ cards that are apparently no longer made.

I contacted RTZ and received a very nice response; that they were busy but would consider doing a run of these if there was sufficient interest and commitment. (There is also a new revision of the cards in the works using SMD components to bring some costs down.)
So I ask here, would there be any interest in organizing a group buy to get a run of these PCBs done?

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