Hit or Miss
Announced in this October 1956 trade advert the KT88 Audio Output Valve could well and truly throw a punch or two!
A New Audio Output Valve with an anode dissipation of 35 Watts
An addition to the well tried and popular range of GEC Audio Valves, of which the KT66 has set a standard in its class the world over, the new GEC KT88 is now available to meet conditions of use requiring higher power.
Points about the KT88
The General Electric Co. Ltd., Magnet House, Kingsway, London WC2
Valve Data: KT88
(Data taken from GEC 1957 Valve Data sheet, which calls this valve a
tetrode and lists the price as £1 2s 6d plus tax)
|ra||12,000 ohms||anode impedance||Pin 1||Pin 2||Pin 3||Pin 4||Pin 5||Pin 6||Pin 7||Pin 8|
|gm||11 mA / V||conductance||Shield||Heater||Anode||Grid 2||Grid 1||No pin||Heater||Cathode|
|Va||600V||max anode voltage|
|Vg||600V||max screen voltage|