California Equipment Service 8136F (JM tube)
[Cross-reference chart for ion gauge tubes]:
Duniway
Varian
P-E
G-P
ETI
Fil-Tech
HML
CHA
Veeco
I-164-275
0564-K2500-303
605-7153
303041
8136F
G8136F
IKP-150-F
References
Cross-reference chart for ion gauge tubes:
http://www.duniway.com/images/pdf/pg/ion-tubecrossreferences.pdf