6S2

6S2 is also designated EY86.

The 6S2 is a high-vacuum, single-anode rectifying tube intended for E.H.T. supply from the line time base in television receivers, with a coated unipotential cathode. It uses an E9-1 base (RETMA basing designation 9DT) and a T6 1/2 bulb. The tube may be mounted in any position.

Ratings

The heater requires 6.3 volts at 90 mamps. The heater voltage tolerance is ±15% when the D.C. output current is below 200 µamps, and ±7% when the D.C. output current is above 200 mamps. Maximum ratings include a peak inverse plate voltage of 22000 volts, a peak inverse plate voltage at zero plate current of 24000 volts, an absolute limit for peak inverse plate voltage of 27000 volts, a D.C. output current of 0.8 mamp, and a peak plate current of 40 mamps. The maximum filter input capacitor is 2000 µµF. A typical operating condition provides a D.C. output current of 0.15 mamp at a D.C. output voltage of 18000 volts. The maximum pulse duration is limited to 18% of a cycle with a maximum of 18 µsec, or 10% of a cycle with a maximum of 10 µsec. Direct interelectrode capacitance from plate to cathode and heater is 1.8 µµF.

Connections and Application Notes

Pins 1, 4, 6, and 9 connect to the heater, cathode, and internal shield; pins 2, 5, and 8 connect to the heater; pins 3 and 7 are not connected; the plate is the top cap. The Rogers Majestic Electronics datasheet recommends an anti-corona ring around the tubeholder connected to cathode pins 1, 4, 6, and 9. It also states that circuit elements having the same potential as the heater may be supported by tube-holder contacts 3 or 7, but these contacts should never be earthed.

Equivalence is asserted only where the archive's own literature states it directly, in at least 40 separate documents. Tubes that merely substitute in some circuits are not listed here.

Original manufacturer datasheets for 6S2, hosted by Frank Philipse's Electron Tube Data sheets.

Documents held here and used to write this page.

• 6S2
• LA RADIOTECHNIQUE (filed under EY86)

1 further designation appears alongside 6S2 in the literature but below the evidence threshold used here, so it is not listed as equivalent.