Worn Out GZ34s
From postmaste–(at)–riodeel.com Sat Sep 19 15:35:57 CDT 1998
On Fri, 18 Sep 1998 20:58:11 GMT, Marc Ferguson
>You’re not the only one with the Chineeze GZ34 problem. Multiply # of tubes X .4 =
Not many, and not cheap, tho.
If you’ve got a worn out GZ34, you can hear it,
Same goes for other rectifier tubes…while there’s
One rectifier tube that draws about the same
5R4-WGA & WGB look like little weird flower Ned Carlson Triode Electronics “where da tubes are!” http://www.triodeel.com Your Start Page for Tube and Tube Amp info on the net… http://www.triodeel.com/tlinks.htm
Article: 127736 of alt.guitar.amps
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From: postmaste–(at)–riodeel.com (Ned Carlson)
Newsgroups: alt.guitar.amps
Subject: Re: Sovtek EL34s rattle prone/how ’bout gz34 rectifiers too?
Date: 18 Sep 1998 23:42:02 -0500
Organization: Triode Electronics
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wrote:
># of sparkomatics. Good light show in da combo! Ned’s got the real deal.
>Mullards. EOS. NOS.
Note that GZ34 take a long time to wear out..they’ll
outlast the power tubes by a long time, normally.
Don’t toss them just ’cause they’re old, used or both.
lack of headroom, breaks up too early, lack of power.
It’s even easier with a meter: with normal bias, if the
GZ34′s shot, the voltages will be way low.
no great shortage of 5U4 & 5Y3, since there’s
a finite supply, might as well hang onto good
used ones.
filament current as 5AR4 but has a load o’ sag,
but can handle the current is 5R4
(GY/GYA/GYB/WGB..same thing in different bottles),
which can usually be had pretty cheap, since there’s
not much stuff out there that uses them.
vases, and they’re aviation rated to 40,000 feet,
so you can brag to your friends that you’ve
got “B-52 tubes” in your amp. Just the thing
to have if you get a gig at the USO on Diego Garcia.
2225 W Roscoe Chicago, IL, 60618 USA
ph 773-871-7459 fax 773-871-7938
12:30 to 8 PM CT, (1830-0200 UTC) 12:30-5 Sat, Closed Wed & Sun
