Datasheet Summary
VALVES
LOW NOISE
VHF TRIODE
ISSUE 2
The A2599 is a low noise v.h.f. triode for grounded-cathode use. It is a mercial version of the CV5242.
BASE CONNECTIONS h h k k g
AND VALVE DIMENSIONS k Base: B9A k Bulb: Tubular. Max. overall length: g Max. seated length: Max. diameter: a
56mm. 49mm. 22- 2mm.
Viewed from underside of base.
HEATER
6- 3 0- 3 (approx)
MAXIMUM RATINGS (Absolute)
Va pa
Ik
+Vs
Vh-k(pk) Tbulb
250 2- 5 20
20 100 200
CAPACITANCES (Measured on a cold screened valve)
Cg-all. less a: 3- 5pF;
Ca-all. less g: 0'7pF;
V W rnA V V °C
Cg-a: 1- lpF.
CHARACTERISTICS
Va i,
Vg gm
[.1
- Cin(w)
- nn(w)
130 16 -1 (approx) 15 60 6 (approx) 30...