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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Re: Who made Lowrey branded 12ax7s for Lowrey organs? posted by nutbatter on August 11, 2006 at 07:38:40:
Hi. If the printing is yellow, they are Raytheons for sure. Just closely inspect the tubes you have, and you will see the number "280," which is the EIA manufacturer ID for Rayhteon, along with the manufacturing date code such as "60-13." (FYI, 60-13 reads "manufactured in the 13th week of 1960"). If yours have shiny black plates with a halo/round getter and have a 59-xx or 60-xx date code, then they are the ones made in 1959 or 1960 by Raytheon that VTV rated so highly. A very smooth-sounding tube indeed!
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Follow Ups
- Re: Who made Lowrey branded 12ax7s for Lowrey organs? - mnaka7 16:41:18 08/11/06 (0)
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