A2599 - GEC

A2599 Low Noise VHF Triode

VALVES LOW NOISE VHF TRIODE A2599 ISSUE 2 The A2599 is a low noise v.h.f. triode for grounded-cathode use. It is a commercial 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.

Features

lifier, followed by an A2521 triode, operated in grounded-grid connection, as shown in figs. I, 2 and 3. Va(b) 180 Ra 3
·3 Rk 68 [a 15
·5 Frequency 45
*Noise factor (average) 1
·5 tNoise factor (average) 1
·3 :!:Power gain (approx) 30 Optimum source resistance (approx) 1300
*Input circuit tuned. +Input circuit adjusted for lowest noise factor. tFor the cascode amplifier. 250 68 14
·5 200 6
·8 4
·7 20 290 V kn o rnA Mcjs dB dB dB n INSTALLATION The valve may be mounted in any position. The use of a retaining device is recommended. If a screening can is used it should be blackened.