New old stock tubes from Telefunken RCA GE Raytheon and Chinese and Russian production, listed individually because stock of each type is limited.
New old stock is finite. Anyone restoring an instrument or a classic amplifier is working against a supply that only gets smaller, and the type they need has to be found while it still exists.



























Restoring a classic amplifier to its original tube complement
Replacing a small signal tube in older measuring equipment
Finding a rectifier type that is no longer produced
Building a reserve of a type that is getting scarce
New old stock is finite. What to ask about condition and markings, and when an original type is worth it against current productio
Maintenance GuidePractical storage and handling rules that keep spares serviceable, from shelf conditions to the checks worth making before a tube
Yes. New old stock is not made any more, so availability changes. Ask for the current position before you plan around a type.
That depends on the item. Ask when you request the quotation and we will describe what is available.
Send the type number. We will tell you whether we can offer it rather than substituting something else without telling you.
Individually, with the original packaging kept inside the shipping carton where it exists.
Send the numbers exactly as they are printed on your equipment. Price, availability and the data we hold come back by email.