| Some test results on JJ 5751 [message #72921] |
Tue, 05 June 2012 08:56  |
Aki
Messages: 36
Registered: May 2009
|
Baron |
|
|
Have been testing a batch of newly released JJ 5751, and came up with some test results that I thought I might share with folks here.
Visually, JJ 5751 is identical to JJ ECC83S. Same glass, same plate structure. Electrically, they are definitely different creatures.
The numbers below were from a batch of 20 JJ 5751, tested at Ip=1mA, Ep=200V. Average numbers from JAN GE 5751 and JJ ECC83S on the same tester are listed for comparison.
JJ 5751 JAN GE 5751 JJ ECC83S
Conductance : 2000 1650 1800
Mu: 82 75 95
From the numbers above, calculated plate resistance are similar between JJ 5751 and JAN 5751.
Of course, this is only a test at a particular operating point and not a full curve trace by any means. But you get a general idea as to how JJ 5751 would behave.
|
|
|
|
Posting Rules
Members
Search
Help
Register
Login
Get a T-Shirt!
