Question about delay lines
 

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I'm interested in experimenting with phased arrays, but I can't find
any variable delay lines. I don't want coils of transmission line --
what I'd like is a little widget that can be tweaked to change the
amount of delay, but I don't see any of that for analog stuff like
transmission lines, just digital stuff like TTL logic. Help?

Jack.
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Jack Twilley
jmt at twilley dot org
http colon slash slash www dot twilley dot org slash tilde jmt slash
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