TS 9 4558 Op Amp

Effects

From powe--(at)--wdc.com Sat Jul 20 12:08:12 CDT 1996
From: O'Connor
Newsgroups: alt.guitar.amps
Subject: Re: TS-808 opamps
Date: Sat, 20 Jul 1996 04:04:25 -0700
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit

There is nothing magic about one manufacturer's 4558 op-amp over another.
This is a standard dual op-amp device and if it carries the 4558
designation, then the prefix doesn't matter-- all of the companies
licensed to make the part use the same topology and meet the same
performance level. The suffix can denote differences in temperature
limits or case material, but these are irrelevent in a pedal.

If you can hear a difference between '4558'-designated components, then
you must have an active imagination.

By the way, later Tube Screamers used a low power version of this chip,
that otherwise performed as well tonally, with a slight increase in hiss.

Kevin

Index:

Chandler Tube Driver Tubes	Ibanez 8 Series Effects	JRC4558 specs	Klemt Echolette
midiverb ii	No Salvage JRC4558Ds	TS 10 differences	TS 5 feedback changes
TS 5 to TS 9	TS 9 4558 Op Amp	TS 9 circuit	TS 9 Fix Switch
TS 9 opamps	TS 9 operation	TS 9 switch	TS 9 to TS 808
TS 9 vs TS 10	TS 9 vs TS 808