Valvo CCa / E88CC / 6922,
Manufactured by Philips in 1959 in the Netherlands.
Date code: 7L4 Δ9B
CCa is the holy grail of the Ecc88 / 6DJ8 / E88cc / 6922 / E188cc / 7308 family.
CCa tube (manufactured by Philips) is the most professional Dual Triode of the ECC88/6DJ8 series. This big D-getter is definitely the most wanted.
The measurement values are above the catalog values.
No gas, no noise, no microphoni.
Will be sent in a white box.