TS 5 to TS 9

From drhane–(at)–it.edu Sun Jan 4 00:48:46 CST 1998
From: “Daniel R. Haney”
Newsgroups: alt.guitar,rec.music.makers.guitar,rec.music.makers
Subject: Re: Ibanez Tube Screamer TS-8 Mod Kit
Date: Fri, 02 Jan 1998 21:11:23 -0500
Reply-To: drhane–(at)–it.edu
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Oded Gottesman wrote:
>
> Did anybody try the $20 TS-8 Mod Kit that “Give your TS-5 or TS-9 pedal
> the silky sweet distortion of the original TS-808.”

Who sells the kit? The components cost is under $2, so the
price probably reflects shipping, packaging and drool-proof
instructions.

The Guitar Effects Oriented site
tells you how to do it in the Schematics section.

> How is it sound?

It’s okay. More upper bass, more drive. I wouldn’t call it
“silky-sweet” though. Some folks really like it for its
better control over soft distortion. It’s a nice stocking
stuffer.

> What is this mod? (Germanium transistor?)

This is geek-speak to most folks, so get in touch with
a repair tech if it seems too arcane.

Given a TS-5, replace resistors R34 and R35 with values
of 100 ohms and 10K ohms, respectively. Replace the op-amp
with anything but what’s in there. The TL072 or TL082 work
very well, in my opinion, but premium 4558’s are supposedly
preferred. It’s not that important.

> Isn’t the TS-9 supposed to be an exact reissue of the TS-808?

They are close. The circuit topologies are identical. Only
a few components have been changed. In principle, you can
interconvert a TS-5, TS-9, and TS-808.

-drh
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