2. misc-audio
  3. 1370395618

Relabeling tubes???

I've acquired various sets of 12xxx tubes here on Agon.
Some sets are made up of different labeled tubes or from tubes worn off labels.
The boxes have the tube brand/type and test readings.
The problem is I have no recall/memory and will likely forget what tubes go to what boxes once I use the tubes in my gear. Furthermore I'm not familiar enough with tubes to identify Amperex, versus Mullard.... simply by looking at a tube.
So, would it be possible to place a small, and I mean small, sticker on the tube and write a few codes for easy identification
ex) A X7 would mean Amperex, 12AX7
ex) M U7 would mean Mullard, 12AU7

I want to ensure I do not compromise tube life. I'm thinking heat would not be an issue for 12 series tubes used in a preamp, cd player.

Comments please!!!!!!!
pdspecl

Showing 1 response by tubeo

tubeo
72 posts
 
A small label will not comprimise the Tube . Heat from the Tube will cause the adhesive to stick to the glass envelope , but can easily be cleaned .

Most vintage European Tubes have etched Codes on the bottom of the glass . The top line is the Tube Type Identifier . The second line contains the Factory Identifier along with the Date Codes . A web search will provde the needed site for this info .

A magnifying glass may be needed to read these series of Letters and Numbers . Being etched into the glass means it can't be rubbed off .
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