GP5 - ED500 TUBE ELECTRONIQUE TVC À GLAIGNES

Tube GP-5  is a glass-envelope beam power triode intended for use as a shunt regulator or pulse modulator in high-voltage systems. It features anode operating voltage of 30 kV and a plate dissipation of 37.5 watts. Originally intended for color-TV voltage stabilization, the GP-5 is similar to the Telefunken ED500 and may be used to retrofit equipment which uses the American type 6BK4 or other high-voltage beam triodes.  Near equivalent: ED500 and 6BK4. General characteristics: Name: GP5 Cathode: oxide-coated, unipotential Voltage (AC or DC), V: 6.3 (± 0.6) Current, mA: 210 (± 20) Heater-cathode voltage, peak, V: ±200 Amplification factor (nominal): 2750 Transconductance (nominal), uS: 700 Interelectrode capacitances (typical), with cathode grounded: - Input 4.0 pF - Output 1.5 pF - Feedback 0.1 pF Mechanical characteristics: Base standard magnoval, glass button Socket Svetlana SK509 or similar Anode cap approx. 3/8 in (9 mm) diameter Anode connector same as 6BK4 or 807 Operating position Any (vertical for convection cooling) Nominal dimensions: - Height of glass envelope 100 mm (3 7/8 in) - Diameter of glass envelope 46 mm (1 3/4 in) - Overall height 125 mm (4 7/8 in.) Net weight, g: 115 Maximum ratings: Anode voltage, kV: 30 Anode dissipation, W: 37.5 Anode current, continuous, mA: 2 Grid voltage, V: -450 Maximum grid-circuit resistance, megohms: 3 Envelope temperature, C: 250