From postmaste–(at)–riodeel.com Wed Feb 18 11:07:23 CST 1998
Article: 86534 of alt.guitar.amps
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From: postmaste–(at)–riodeel.com (Ned Carlson)
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Subject: Re: No more Chinese 12AX7s
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Andrew McWhirter wrote:

>’Course, since I can go buy NOS 12AX7’s for $A5 (about $3), I might just go do
>that.

Hey, Andy, if you can turn us up a pile of NOS AWA 12AX7 for
Au$5 each, lemme know how many you can get. Sure, you
can make a few bucks on the deal…or trade..

You asked me about Tesla 12AX7. So did Danny Russell.
(Tried to email you, but you spamproofed the address)

The Tesla 12AX7 is a frame grid tube. Unlike regular 12AX7
12AX7, which have a grid that looks a bit like a
distended slinky (a spiral grid around two posts), a frame
grid looks like a little ladder. Each side has *two* plates
and *two* grids, on each side of a single cathode.
(They look like a 6DJ8/ECC88, another frame-grid tube)
At any rate, the frame-grid arrangement makes for more
consistent characteristics, lower microphony, and
lower noise, which makes them particularly well
suited for mic & phono preamps.
As far as guitar amps are concerned, it’s players’ call
as to whether they like the tone or not. Marshall players
seem to like the Teslas better than Vox or Fender
players do.

Ned Carlson, Triode Electronics, Chicago, IL http://www.triodeel.com
Open 12:30-8 PM CT, 12:30-5 PM CT Sat Closed Wed
ph:773-871-7459 fax 773-871-7938 “where da tubes are”
Email catalogs: email our CataBot: catalo–(at)–riodeel.com

 

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