Matched Pair Philips E88CC 6922 (Rare Curved D Getter) Used tested NOS

Matched Pair Philips E88CC 6922 (Rare Curved D Getter) Used tested NOSMatched pair of rare Philips E88CC 6922. This is early old curved D getter type with gold pins and it's much better sounding than later types. They are made in Heerlen Holland plant in 1959 and delta codes are clearly visible on photos, 7L4 etched codes. They are carefully tested on calibrated Mutrix U61B tester with 100V on plates and 1. 5V on grids and results are: 16 18 16 16 mA Value for 100% NOS tube is 16mA at this voltages! Tested for

Matched pair of rare  Philips E88CC / 6922. This is early old curved D getter type with gold pins and it's much better sounding than later types.

They are made in Heerlen Holland plant in 1959 and delta codes are clearly visible on photos, 7L4 etched codes.

They are carefully tested on calibrated Mutrix U61B tester  with 100V on plates and -1.5V on grids and results are:

16/18 16/16 mA

Value for 100% NOS tube is 16mA at this voltages! 

Tested for mirophonics and low noise in my preamp, and they work perfectly.

Please pay attention, it's written on them by black marker!

If you are looking at this listing, you surely know that this tube could be ultimate sub for ECC88 / E88CC / E188CC / E288CC / CCa / 6DJ8 / 6922 / 7308 / PCC88 / 7DJ8, as I personally checked in few amps and preamps, but please do not ask me about warranties how they will sound in your devices. 

You can found more info about them at my page about these tubes: http://www.tubes.rs/ecc88-6dj8-e88cc-6922-cca-e188cc-pcc/