[R-390] 12AX7 tubes

[flood at Krohne.com]

Greetings,

I lost the earlier digest but whoever was looking for 12AX7's should 
contact me off list with how many they need and what they would like to 
pay or trade.  I have a supply of this series that are as best as I can 
tell NIB mill surplus.   If an audiophool wants to trade equal weight in 
gold they are welcome to but I'd be happier if they went to BA crowd. 

John Flood
TASC Department
KROHNE, Inc
7 Dearborn Rd.
Peabody, MA   01960
Tel.:  978-535-6060 / 800-356-9464
Fax:   978-535-8180




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10/28/2005 04:01 AM
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Today's Topics:

   1. Re: Foreign tubes 12ax7 (r390/r388) (Tim  Shoppa)
   2. RE: Foreign tubes 12ax7 (r390/r388) (Kenneth)
   3. Interesting Soviet BA (Tom M.)


----------------------------------------------------------------------

Message: 1
Date: Thu, 27 Oct 2005 07:54:50 -0400
From: "Tim  Shoppa" <tshoppa at wmata.com>
Subject: Re: [R-390] Foreign tubes 12ax7 (r390/r388)
To: <r-390 at mailman.qth.net>
Message-ID: <s36087d3.070 at wmata.com>
Content-Type: text/plain; charset=US-ASCII

kc0lwn asked:
> This is a technical slightly off topic question. 
> I have an r-388 in addition to my r-390a.
> Does anyone have any experiance with Russian or
> Chinese tubes that will replace the 12ax7.  The US
> made NOS stock tubes are getting to be quite
> expensive.
> Ibeleive the  r390 uses a 12ax7 so I am hoping
> someone has experiance.

Well, my R-390A has no 12AX7's, but my experience
with Eastern European 12AU7's (Tesla, now JJ) was
less than stellar, with intermittent interelement shorts.

Don't get too wrapped up in the astronomical 12AX7 prices...
some are highly desired by the audiophile types and others
are ignored.  I'm sure the ignored kind (even if Chinese
or Russian or E. European) will do fine.  Even though just
looking in the catalogs I'm surprised that used random 12AX7's
seem to sell for more than the new imports.

And the JAN/industrial number (5751) that's somewhat compatible
seems to be pretty expensive too.

Tim.


------------------------------

Message: 2
Date: Thu, 27 Oct 2005 09:03:15 -0600
From: "Kenneth" <crips01 at msn.com>
Subject: RE: [R-390] Foreign tubes 12ax7 (r390/r388)
To: "'g kwitka'" <kc0lwn at yahoo.com>, <r-390 at mailman.qth.net>
Message-ID: <BAY107-DAV2125A6351776FBBFB6376BF680 at phx.gbl>
Content-Type: text/plain;                charset="us-ascii"

Simple answer Russian tubes good, Chinese tubes bad. The 12AX7 is a common
domestic tube and the supply of this tube is still good.

                         Ken de W7ITC


------------------------------

Message: 3
Date: Thu, 27 Oct 2005 18:55:40 -0700 (PDT)
From: "Tom M." <courir26 at yahoo.com>
Subject: [R-390] Interesting Soviet BA
To: r-390 at mailman.qth.net
Message-ID: <20051028015540.17258.qmail at web36212.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

See this BC-348 inspired HF rec.

Ebay 5823841417 

Tom


 
 
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End of R-390 Digest, Vol 18, Issue 41
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