They are rebranded Philips Miniwatt and they come in original Philips boxes! Tested for low noise and microphonics from box of 100 pcs!
They are made in Mullard, Blackburn tube plant in 1963 and B code is clearly visible on photos.
Perfect for microphones!
If you buy any item on ebay from me and for if you are not fully satisfied for any reason or have any complains, please send me message before leaving negative or neutral feedback or opening a case. I really do care about your satisfaction and I’ll do my best to solve any kind of problem.
I collect tubes and tube gear for more then 35 years and I start to sell recently, please be sure to check my other items and visit my store for more rare NOS tubes and parts.
I have more than 250000 NOS tubes in stock and just small part is listed here, if you are interested in any specific tube or part, please send me message.