INCH-POUND
MIL-PRF-1/1661C
1 October 2003
SUPERSEDING
MIL-PRF-1/1661B
10 July 1998
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, THYRATRON
TYPE 8765
This specification is approved for use by all Depart-
ments and Agencies of the Department of Defense.
The requirements for acquiring the electron tube described herein
shall consist of this document and the latest issue of MIL-PRF-1.
DESCRIPTION: Triode, hydrogen, ceramic-metal.
See figure 1.
Mounting position: Any.
W eight: 7 ounces (198.5 grams) nominal.
ABSOLUTE RATINGS:
Parameter:
Ef
Ebb
Ecc
egy
egx
epy
epx
Ib
Unit:
V ac
V dc
V dc
v
v
kv
kv
A dc
12.0 1/
200
12.0 2/
0.2
600 3/
Maximum:
150
---
6.8
Minimum:
---
----
175
----
5% epy
---
300
5.8
Test conditions:
6.3
---
0
150
---
12.0
----
----
ABSOLUTE RATINGS:
TA
tk
tj
prr
Pb
dik/dt
Ip
ib
Parameter:
sec
---
---
A ac
a
Unit:
°C
µs
a/µs
9
Maximum:
350
5.0
2,000
4.0 x 10
----
0.005
---
+150
Minimum:
----
----
---
---
---
---
180
-55
Test conditions:
----
---
---
---
1,500
---
180
----
See footnotes at end of table I.
_____________________________________________________________________________________________
GENERAL:
Qualification - Required. 4/
AMSC N/A
1 of 5
FSC 5960
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.