Many thanks indeed Eero.
You are welcome.
Actually, is the WW article with the practical schematics this one mentioned
in the refrences:
Heller, D: Surround Sound Decoders Pts 3 and 4. QS Variomatrix Wireless
World 82
(1488-9) pp. 57-59 August, and pp. 53-56, September 1976 ?
I have never seen that particular article? Anyone with a copy?
Or, was there ever a practical schematic released?
The basic H-Matrix decoder schematics were earlier released in a
Wireless World
article. That was actually a multi-format decoder.
Eero
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