(!) (Recommended Single) 6GM8=ECC86 SIEMENS HOLLAND NOS 1970 (4.0/5.0ma)
(!) 12AU7=ECC82 Miniwatt France used/good 1970 (10/9.6ma)
(!) ECC189=6ES8 Amperex Bugle Boy Holland NOS 1967 (20.2/23ma)
(!) ECC189=6ES8 Amperex Globe Logo Holland NOS 1969 (17.8/17.2ma)
(!) ECC82=12AU7 Valvo Holland used/good 75-90% 1968 (7.8/9.0ma)
(Read Review) 6DJ8=ECC88 Philips Miniwatt Holland NOS 1960-1963 (16.6/17.0ma and 15.8/16.6ma) 1-5% matched
(slightly microphonic single) E182CC=7119 Amperex USA NOS 1981 (32/44ma)
12AT7 Holland branded CBS Hytron NOS large "D" getter halo 1954 (8.4/10.0ma)
12SA7GT Mullard Holland used/good 1960 (3.8ma)
13GB5=XL500 NOS (5 in stock)
20LF6 RCA Holland NOS 1969
5651 GE "D" getter NOS 1956
5651 GE NOS 1960's (1 in stock)
5651 Tungsol branded GE NOS 1964 (1 in stock)
5651 Tungsol NOS 1964 (1 in stock)
6688=E180F National UK black plate NOS probably made by Amperex (9ma)
6688=E180F National UK gray plate NOS probably made by Amperex (16ma)
6AL3=EY88 International Japan Half-Wave HV Rectifier NOS (1 pair)
6AL3=EY88 RCA France 1969 Half-Wave HV Rectifier NOS (1 in stock)
6AL3=EY88 Realistic Germany by Siemens NOS (1 in stock)