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9.&e.
VALVES
VHF/UHF TRIODE
A1714
ISSUE 4
A triode with planar electrodes for use as an RF oscillator at frequencies up to 1000 Mc/s or as a low noise amplifier at frequencies up to about 300 Mc/s.
The A1714 is a commercial equivalent of CV408. In many applications the A1714 may be replaced by the A2975 with improved performance.
BASE CONNECTIONS AND VALVE DIMENSIONS
h
h IC Base: B7G Bulb: Tubular Max. overall length:
k IC Max. seated length: Max. diameter:
ga View from underside of base
54 mm. 47· 5 mm. 19 mm.
HEATER
6.3 O·49 (approx)
V A
MAXIMUM RATINGS (Design centre)
Va
Pa Ik ik(pk) Vg Pg Ig Vh-k(pk)
250 2.5
45 150 -30
0.1 10 90
CAPACITANCES (of unscreened valve)
V W rnA rnA V W rnA V
*ca-g *Ca-all less g tCg-all less a
0.9 pF 1.3 pF 3.0 pF
*Measured on a cold valve.
A1714 Datasheet
