Mic Kaczmarczik's TubeInformation - The Blue Guitar

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is of considerable importance in many applications. In use, valves build up a resistive layer between the metallic cathode and its emissive coating. As this resistive layer appears in the cathode circuit, it results in a negative feedback condition giving the valve a reduced performance figure due to the loss of slope. The growth of this interface impedance is more likely to occur where valves are used with very low cathode current or in cut-off condition for long periods. This also applies where valves are required to give high pulse current after a long period of low current operation. To overcome this problem Brimar Long-Life valve types incorporate new cathode alloys which, as well as giving increased strength at working temperatures, virtually eliminate cathode interface growth. I have a few of the special quality flying lead CV4035=12AX7 and CV4069=12AU7. Regards, Brendan Biever tekman@execpc.com (414) 208-0353 (phone/fax) Back to JT30 Home
From postmaster@triodeel.com Fri Oct 23 09:22:07 CDT 1998 Article: 92024 of rec.audio.tubes Path: geraldo.cc.utexas.edu!cs.utexas.edu!howland.erols.net!novia!sequencer.newscene.com!not-for-mail From: postmaster@triodeel.com (Ned Carlson) Newsgroups: rec.audio.tubes Subject: Re: 6V6 GT I.D. help needed Date: 23 Oct 1998 00:13:08 -0500 Organization: Triode Electronics Lines: 24 Message-ID: References: Reply-To: postmaster@triodeel.com X-Newsreader: Forte Free Agent 1.11/32.235 Xref: geraldo.cc.utexas.edu rec.audio.tubes:92024 On 21 Oct 1998 12:45:42 GMT, tubecntral@aol.com (TUBECNTRAL) wrote: >Hi, I have a pair of black glass 6V6 GT's...they are branded as CEI. These have >very thick glass with a dimple in the very top of the envelope. Says "Made in >Italy" >on them in white screenprint. Are these Amperex-made, and if not who? I've >never seen these before, except for some Tung-sols that I have. Thanks in >advance... Probably Russian. These have turned up with a number of country of origins labelled, mainly due to the former 35% punitive duty on Soviet goods. CEI just relabelled surplus & imported stuff. Ned Carlson Triode Electronics "where da tubes are!" 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 http://www.triodeel.com Your Start Page for Tube and Tube Amp info on the net... http://www.triodeel.com/tlinks.htm Back to JT30 Home
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Mic Kaczmarczik's Tube Information
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Svetlana-6550s 07-Nov-1995 11:01 4k
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From ftom@netcom.com Sun Mar 26 14:
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From wright@uspto.gov Sat Aug 19 20
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From tremolux@aol.com Tue Dec 20 11
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From hap@bnr.ca Fri Mar 1 16:51:56
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: : : What transformer secondary vo
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Page 17 and 18: From stratboy@onramp.nett Sun Dec 1
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Page 21 and 22: From ashinman@chem.ucalgary.ca Wed
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Page 25 and 26: From mookie2112@aol.com Sat Jul 31
Page 27 and 28: tubes. Very good in the #2 position
Page 29 and 30: From postmaster@triodeel.com Thu Au
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Page 37 and 38: From power@wwdc.com Mon Jul 29 10:3
Page 39 and 40: From postmaster@triodeel.com Fri Ja
Page 41 and 42: From SRSN81A@prodigy.com Sat Nov 25
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Page 47 and 48: RCA - Very detailed when clean, sli
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Page 51 and 52: From meo@rru.com Wed Apr 19 14:02:1
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Page 55 and 56: it!) with a well matched set of GTA
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Page 59 and 60: From Kevin@UPSCALEaudio.com Sun Mar
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Page 85 and 86: it beefier magnetics and they can h
Page 87 and 88: little gift of a bad trace, a bad L
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Page 91 and 92: From dhaugen9@mail.idt.net Fri Oct
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Page 95 and 96: From: jatwood@netcom.com (John Atwo
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Page 99 and 100: From jjensen@sirius.com Wed Apr 30
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coupling in airborne sound to the t
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UPSCALE Audio/Home Theater/Rare Tub
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From stanj@dnai.com Sun Nov 19 10:5
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From jcassidy@svetlana.com Thu Oct
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small, so it could have been plain
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From larrysb@aol.com Sat Aug 31 09:
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From lewis@jpmorgan.com Wed Apr 17
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4. The first grid voltage -35 V 5.
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From PYLOT@asu.edu Tue Sep 19 11:35
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From grego@mud.lattice.com Thu Feb
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or control grid is sloppy. As you k
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From ep@interport.net Fri Jul 28 15
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From PYLOT@asu.edu Tue Aug 8 11:34:
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From postmaster@triodeel.com Sat Oc
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From idkwid@mail.smart.net Tue Nov
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From joelnice@diva.EECS.Berkeley.ED
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Subject: Re: Tomorrow's tubes? Send
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From mcjimi@aol.com Fri May 12 12:4
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mirrors. Or try: "It is also availa
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8. Output transformer questions: >
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potential and plate potential, tran
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> A recently voiced although intuit
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* "rewinding transformers with CAD"
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From triodeel@interserv.com Wed Apr
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Best Regards, Kevin Deal High End,
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From bry@REMOVETHIS.mnsinc.com Sat
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From keen@austin.ibm.com Thu Mar 21
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Sovtek also markets 5U4G, 5Y3GT, 6S
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From rcsigurd@mm.com Tue Dec 17 15:
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The two, three, and four digit indu
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AEG/Telefunken themselves aren't ab
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By incorporating a tube rectifier i
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+++ +++ +++ -+---+---+---+---+---+-
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From keen@austin.ibm.com Sat Aug 13
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splitter in many hifi amps, lots of
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Here's the tough one: Why hasn't an
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The price for matched pairs/quads i
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which case you use unscew and remov
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From ebarbour@netcom.com Fri Sep 1
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From triodeel@interserv.com Fri May
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Ned Carlson Triode Electronics 2225
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From postmaster@triodeel.com Tue Ma
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From dawsondc@postoffice.worldnet.a
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After that, people wanted radios in
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I was given one answer which I thin
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From postmaster@triodeel.com Sat Se
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