Hi I found this thread by googling those date codes trying to ID some 5751... did you ever find out if these tubes are WA or JAN?
Sylvania 5751 BPTM
There are some Sylvania 5751 BPTM '50'S tubes for sale on EBay from a guy in Sweden. The code on the tubes read DH and RFE.
Anyone with insight to these codes. I am trying to figure out if these are the JAN OR WA tubes that are so rare.
Anyone with insight to these codes. I am trying to figure out if these are the JAN OR WA tubes that are so rare.