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- Newsgroups: alt.guitar
- Path: sparky!uunet!stanford.edu!rock!taco!npstewar
- From: npstewar@eos.ncsu.edu (NATHAN PHILLIP STEWART)
- Subject: Re: Built your own amp?
- Message-ID: <1992Nov18.155852.1613@ncsu.edu>
- Originator: npstewar@c00725-239rd.eos.ncsu.edu
- Lines: 21
- Sender: news@ncsu.edu (USENET News System)
- Reply-To: npstewar@eos.ncsu.edu (NATHAN PHILLIP STEWART)
- Organization: North Carolina State University, Project Eos
- References: <1992Nov8.144635.25201@mnemosyne.cs.du.edu> <TOM.92Nov17210326@bailey.cpac.washington.edu>
- Date: Wed, 18 Nov 1992 15:58:52 GMT
-
-
- I've only played one Marshall (A Silver jubilee 50 watt) at home, and the stores
- don't take to kindly to exploring the 'tonality' that different power tubes
- can provide. What I have read - try the Groove Tubes Tube Amp Book III (lotsa
- drool pictures too!) For a period (sometime late seventies? to mid-late eight-
- ies the American distributor for Marshalls replaced the EL-34 power tubes with
- 6550's in order to get through the warranty period without the tubes wearing out.
- I believe Korg now distributes the USA Marshalls, and they now stock (at least
- some of them do - the JMP 45 reiss has 6L6's I believe, but it's a reissue)
- EL-34's again.
-
- As far as differences, I've heard that 6550's don't break up very much, and
- then only at full output. EL-34's begin breaking up around 5-6 on the volume
- on some Marshalls. The 6550 also tends to hold its bandwidth well when it does
- go into distortion, with a brighter sound, most of what you hear on a 6550
- Marshall is preamp crunch though. EL-34's begin losing their top end progress-
- ively as distortion increases, warming the amp up a bit. You can hear a lot of
- this in what was popular through these time periods.
-
- npstewar@eos.ncsu.edu
- Nathan Stewart
-
