The 30L17 from Mullard is unusual in that it does not carry the Mullard designation code. This suggests that the 30L17 was a copy of another manufacturers product, just as in earlier years the Mullard designs would be copied by others.
The 30L17 is a double triode with unusual connections. We wonder, based on low anode volts, if it was designed for cascode (series) operation in the front ends of UHF television receivers.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 47 mm tall.
Pin Connections
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
k(2) |
g1(2),s(1) |
a(2) |
h |
h,s(2) |
g1(1) |
k(1)in |
k(1)out |
a(1) |
Absolute Maximum Operating Conditions
|
Vh |
Ah |
Va |
Vg |
mAa |
ra |
gm |
|
7.2 |
0.3 |
75 |
-0.75 |
15 |
2,400 |
16.5 |
This exhibit was last updated on 07 January 2007 |
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