GZ30=5Z4GT Mullard NOS 1961 (sold out)
JG-6BH6 GE NOS 1961 (9.4ma)
UAF42=12S7 Philips Miniwatt by Mullard UK NOS 1961 (1 in stock)
UAF42=12S7 Ultron Germany NOS (4 in stock)
