Mic Kaczmarczik's Tube Relabeling Information

Tube Relabeling


Vacuum Tubes for Amps

Tube Relabeling

This directory contains USENET articles Mic has saved about guitars, equipment, pickup, techniques, players, and so on. Mic has graciously granted permission to post the stuff on the JT30 page on the off chance that it might be useful in the context of Blues Harmonica. Mic is not responsible for the content, just the collection.

Vacuum Tubes for Amps

Tube Relabeling
From postmaste--(at)--riodeel.com Sat Nov 7 18:47:24 CST 1998
Article: 137636 of alt.guitar.amps
From: postmaste--(at)--riodeel.com (Ned Carlson)
Newsgroups: alt.guitar.amps
Subject: Re: Help ! 6V6 tube question
Date: 7 Nov 1998 14:26:05 -0600
Organization: Triode Electronics
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References: <19981107000032.00811.0000041--(at)--g-fb2.aol.com> <3643dfa6.17754155--(at)--ews1.newscene.com> <36443BB9.128--(at)--imeelect.com>
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On Sat, 7 Nov 1998 09:22:13 -0500, "Steve Watson"
wrote:
>I always thought that tube relabelers had to put the country of origin on
>the tube. Is this not true?
>Steve


This was the convention that was adopted by US Customs for tube
importers, in lieu of labelling the box with the country of origin
(which the Canadians used to do with all their tubes), the tube
companies had the tubes labelled with country of origin
in the originating country, then the boxes said "Country
Of Origin as Stated On Tube".


Customs was much more diligent about checking this back when
there was a 35% punitive duty on most products from Communist
countries, because goods were frequently mislabelled to avoid the
duty, and some, including Richardson, who labelled the fake
"English 6V6-GTA", got in a peck 'o trouble for that.
(I myself had tubes impounded by customs because the vendor
had failed to label them properly, then I had to put up a
bond to get 'em out, then had to have Customs reinspect them
after I'd paid to have them labelled myself)
This problem was exacaberated by the fact that EC (Common Market)
countries normally don't require the country of origin labellling, and


people were importing unlabelled Eastern bloc tubes intended for sale
there,such as the Yugoslav and East German product that
Siemens & Telefunken were marketing.


Nowadays Customs seems more concerned with industrial & transmitter
tubes of the same types as US companies like Eimac make,
that might be imported, fake labelled and passed off as
US product. Small tubes don't seem to be a priority, so long as
importers aren't trying to pass them off as something they're not.
They're also quite diligent about trying to prevent illegal export of
items like krytrons and ignitrons, which might be used in
weapons systems. A lot of high-tech vacuum technology is export
restricted.


The problem with the 6V6's, is that there's still likely thousands
of Russian ones from the bad old days floating around with fake
country of origin labelling. Since there's a plethora of real NOS
on the market, the new Sovtek ones are etched in the glass
"Sovtek 6V6-GT Made In Russia", and Russian tubes are charged
the same duty rate as tubes from other countries,it's unlikely that
many people nowadays are fake labelling Russian 6V6's.


You are much more likely to run across fake labelled
product if you are trying to purchase rare European NOS
product, eg: like the famous (or infamous) Amperex "Bugle
Boy" or Telefunken 12AX7's & EL84's, due to the elevated
prices on those products, some folks have been rumored to
be fake labelling stuff like Hungarian and Yugoslav product
with those marques. As I mentioned before, Siemens and
AEG/Telefunken themselves aren't above slapping their
brand on new Eastern European tubes, either.
Also, quite *legally*, the current owner of the Amperex brand name
has been grading and relabelling US made Philips (nee Sylvania)
ECG product as "new Amperex Bugle Boys" at what I consider
ridiculous prices. I've heard that their "Bugle Boy" EL84's and
EL34's are really Sovteks. Not bad tubes, but not NOS Dutch
product, either!


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





 

Index:

12AX7 Comparisons
12AX7 gain test
12AX7 vs 12AT7
12AX7 vs 5751
12AX7 vs 7025
5881 in Deluxe
5881=6L6GB
5AR4 data
5AR4 Typing
5V4 for 5AR4
62 Twin Speakers
6550s in Twin
6EY6 Characteristics
6EY6 close to 6V6
6EY6 rating vs 6V6
6EY6
6L6 GC meaning
6L6 Taste Tests
6L6 Types
6L6GC ID
6L6WGB vs 7581
6MB8 tube specs
6V6 6L6 swaps
6V6 duty cycle
6V6 NOS vs Sovtek
6V6 Ratings
6V6 Russian RCA Copies
6V6 to EL84 Cathode Resistor
6V6 Types
6V6=7408
6V6EH Taste Test
6V6EH vs RCA Blackplates
6V6GT Types
6V6GT vs GTA
6V6s in 6L6 amps
7408 info
7581A tubes
7868 equivalents
Amperex history
Best 6V6
Blue Glow Sylvania
Breaking in Tubes
Breathe on tubes
Brimar Special Quality
CEI 6V6GTs
Chinese 12AT7s
Chinese 6V6GTBC
Design Max Rating
EL34 coding explained
Euro Tube Code
Fingerprints
Fuzzy Cathodes
GE and Sylvania
Groove Tubes 6V6HD
Groove Tubes testing
Groove Tubes
GZ34 types
GZ34 Varieties
GZ37 vs 5U4
How Are Tubes Made
Hytron tubes
ID Tube Makers
Identify Tube Makers
Is Tube Matching Needed
LV Visseaux 6V6 Warning
M
Making Tubes
Mazda History
Metal 6V6s
micKtubes
More M
New US 6L6GCs
No More Chinese 12AX7s
Overvoltage Effects
Phillips 6L6GB JAN
Photon Noise
Real Mullard GZ34s
Relabeling
RTV Tube Damping
Ruby 6V6GTBC
Sovtek 12AT7EH 5751 Test
Sovtek 5881 Confusion
Sovtek 5881 data
Sovtek 5881 for 7027
Sovtek 5881 specs
Sovtek 5881
Sovtek 5881WXT
Sovtek 6CA7 problems
Sovtek 6L6WXT+
Sovtek Midget
Sovtek Online
Sovtek page
Sovtek Tube specs
SPICE tube models
Standby Switches
SV 6L6GC
Svetlana 6550s
Svetlana 6L6GC
Svetlana 7591A
Svetlana EL34 review
Telefunken placement
Telefunken Tubes
Tesla 12AX7
Tesla 6L6GC
Tomorrows tubes
Tube Amp Books
Tube Amp FAQ Feb 96
Tube Chickens
Tube Curve Tracers
Tube Data Page
Tube Data Web site
Tube Failures
Tube gas avalanche
Tube heating effects
Tube Manufacturers
Tube Mfgr Codes
Tube mismatch harmonics
Tube Naming Explained
Tube rejuvenation
Tube Relabeling
Tube Stability
Tube types
Tubes for sale
Tubes vs SS
Visseaux 6V6 Warning
Visseaux 6V6
Vudu Tube Replacement
What Does 6L6GC Mean
What is 5881
What is 7027
Which Rectifier
Why 5V rectifier vs 6
Why 6
Why Tubes Coated Inside
Worn Out GZ34s
YA tube page

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