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- Path: sparky!uunet!pipex!bnr.co.uk!uknet!glasgow!dam
- From: dam@dcs.glasgow.ac.uk (David Morning)
- Newsgroups: rec.music.makers
- Subject: Re: ==> +30db GAIN Circuit for Your Guitar: $25 <==
- Message-ID: <Bznp8B.Iu6@dcs.glasgow.ac.uk>
- Date: 22 Dec 92 10:31:23 GMT
- References: <9212182117.AA01210@floyd.cca.cr.rockwell.com> <1992Dec21.160055.10641@microware.com>
- Organization: Glasgow University Computing Science Dept.
- Lines: 34
-
- alexs@microware.com (Alex Stagg) writes:
-
- >In article <9212182117.AA01210@floyd.cca.cr.rockwell.com>, barothwe@floyd.cca.cr.rockwell.com writes:
- >|>
- >|> I wanted to make anyone who is interested aware...
- >|>
- >|> A local service tech has come up with a really slick circuit
- >|> that will add 30 db of gain to your signal!
- >|>
- >|> o +30db og PURE GAIN
- >|> o DOES NOT change your tone
- >|>
- >How can this claim be made if the tone is dependent on the impedance
- >interaction of the pickups with the amp input stages? Won't inserting
- >the device change the loading, and thereby the tone?
-
- >Which way is it folks?
-
- It'll overload with some pick-ups anyway. 30dB gain is far too much for a
- puny 9 volt battery. I've got a 26dB first stage gain in my home made amp
- running off 30 volts(!) and that clips occasionally with a Telcaster.
- A Telecaster's pick-ups aren't exactly in the megavolts category.
- With 9 volts, it would positively *FUZZ*
-
- The input stage to an amp is generally resistive, so it's relatively trivial
- to make an op-amp do this, however the passive tone and volume controls
- interact with the pick-up. I noticed he was a replacement pot would be supplied
- which suggests he hasn't taken this into account.
-
- I'm pretty certain this product WILL change your tone :-)
-
- Dave
-
- --
-