PCC88 TRONAL/ULTRON "NOS" 9 pin, 7V. Made by Phillips
B9A double triode pre-amp valve, similar to a 6922/ECC88 but with a 7Vac heater voltage. Same as 6DJ8. The PCC88 is a television RF amplifier which was first introduced in 1957. It was very reliable in use. It's a double triode with separate cathodes. The thin glass tube envelope is 20mm in diameter and, excluding the B9A base pins, is 47mm tall.