[sdiy] tl ic question

Paul Schreiber synth1 at airmail.net
Sat Jul 11 21:27:44 CEST 2009


Thank you all for the info ! Much appreciated.
And why don't we give Paul a medal for using over 31,844 tl's ? ;-)

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Heck, that's nothing. While I was at Tandy from 1980-1986 we used
over 7 million 4558 op amps in 3 of my products :) TL072s were
*too expensive*, they were about $0.21/100,000pcs while the
4558s ran $0.09 and the better audio grade 4559s were $0.12
I could never justify the added cost for the TL072s although I tried
several times.

Paul S.




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