Concur, 4558's are among the most common ic I have to replace in vintage gear, probably a close second to CMOS 4051's.
Lucid.
Lucid.
----- Original Message -----
From: stevelenham
To: yamahacs80@yahoogroups.com
Sent: Tuesday, October 27, 2009 10:13 AM
Subject: [yamahacs80] Re: Horror!! voices of Bank I just completely down
--- In yamahacs80@yahoogroups.com, gavin curtis <gavincurtis@...> wrote:
> The 4558 (dual op amps) are extremely reliable.
I can't speak for Yamaha's 4558s, but I do a lot of work on Lexicon 224 reverbs which use RC4558s throughout their analogue circuitry and regularly have to change failed devices. Maybe Lexicon push them beyond where they were intended to go...
Cheers,
Steve L.
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