6N2P
6N2P has no equivalent designation confirmed by the archive. Completed sales put the typical price at $10.72 per tube.
General Description
The 6N2P is a double triode designed for amplification of low-frequency voltage. It is a miniature device with a glass bulb, a nine-pin base, and an indirectly heated oxide-coated cathode.
Ratings and Characteristics
The heater requires 6.3 V at 340 ± 35 mA; the minimum heater voltage is 5.7 V and the maximum is 7 V. The rated anode voltage is 250 V, with a maximum of 300 V. At the rated anode voltage, the anode current is 2.3 ± 0.5 mA, the transconductance is 2.25 ± 0.45 mA/V, and the amplification factor is 100 with a tolerance of +15/-20. The cathode resistance is 600 ohms.
Maximum ratings per triode include an anode dissipation of 1 W, a cathode current of 10 mA, and a grid-circuit resistance of 0.5 megohm. The maximum heater-to-cathode voltage is 100 V, and the maximum bulb temperature is 110 °C.
Capacitances
The anode-to-cathode capacitance is 2.3 ± 0.5 pF for the first triode and 2.5 ± 0.6 pF for the second triode. The anode-to-anode capacitance between the two triodes is no greater than 0.15 pF.
Environmental and Mechanical Limits
The 6N2P is resistant to ambient temperatures from -60 to +70 °C and to relative humidity of 95–98% at +40 °C. It withstands linear mechanical loads up to 100 g, vibration loads up to 2.5 g, and multiple impact loads up to 35 g. The maximum weight is 15 grams.
Service Life
The guaranteed service life of the 6N2P is 4000 hours.
| Measure | Per tube |
|---|---|
| Median | $10.72 |
| Typical range (25th–75th) | $6.40 – $17.74 |
| Most sales (10th–90th) | $4.06 – $32.55 |
| Extremes incl. outliers | $2.50 – $59.14 |
| Completed sales | 90 |
| Brand | Median | Range | Sales |
|---|---|---|---|
| Svetlana | $19.98 | $6.00 – $20.50 | 11 |
| Sovtek | $9.00 | $5.36 – $40.00 | 6 |
| Voskhod | $7.03 | $6.12 – $14.61 | 5 |
| Condition | Median | Sales |
|---|---|---|
| NOS | $10.47 | 72 |
| used | $10.97 | 12 |
Per-tube prices from completed sales, 2023-02-17 to 2026-10-18. Matched pairs and quads are divided out. See the price index for how these move over time.
Documents held here and used to write this page.
- 6N2P