![]() If they're in new condition and are old stock, send us your list.Ħ. Also, much like vintage amplifiers and guitars (or vintage tuners and stereos), certain items achieve anointed status and their demand is even higher than usual, which also pushes the price higher.ĥ. These tubes aren't being made anymore, and lots of vintage amp owners like to have a purely vintage rig, tubes and all. Why are some old types more expensive than others? There are thousands of tubes with identical basing, and the vast majority of them won't work in your amp.Ĥ. If you aren't sure why some weird tube is in the clearly labelled socket of the amp you just bought, ask us or pick up a handbook and check for yourself. Does any tube that fits in the socket work okay? is an ECC83 in Europe is also a 7025 to Fender owners because for a while Fender sold tubes labelled 7025 that were a low noise 12AX7. For instance, what is a 12AX7 in the U.S. Why do some types have many different names?Īs mentioned in the answer to the previous question, some types (usually the popular ones) are referred to by different numbering systems. There are many different tube substitution possibilities for those wishing to push the limits in the quest for unique performance, but our site is straightforward for those who just want to re-tube their amp without any extra concerns.Ģ. The bottom line for buying tubes for your amp: we list types together that will work in your amp without problems. Sometimes these letters mean functionally nothing (design revisions) and sometimes they refer to different voltage capabilities of a given type. To make things more complicated, many tubes have letters after the name, such as 6L6WGB, 6L6GC. But to use the notation commonly seen in the United States, here is the meaning of "12AX7":ħ - the number of internal elements, including the filament These different numbering systems may be from the American or British military, or from American or European industrial or consumer use, and then of course there are many strange exceptions. 5751), or are some combination of numbers and letters (12AX7, ECC83, CV4004). ![]() Most commonly the numbers contain digits only (e.g. There are several different tube numbering systems that you may see on tubes, which generally are a result of where they were built. ![]() What do the numbers and letters in a tube's name mean? Please ask us if there's a question we haven't answered here.ġ. ![]() Clearance - Bargains - Scratch and Dent. ![]()
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