6F4P x 2pcs ( ECL84, 6DX8, 6DQ8 ) – HF Triode-Pentode – NOS – TESTED!
Specifications
| All Returns Accepted | ReturnsNotAccepted |
| Brand | Unbranded |
| Type | Triode-Pentode |
| Model | 6F4P |
| Country/Region Of Manufacture | Ukraine |
1 LOTS = 2 TUBES 6F4P Item specifics:The main technical characteristics of 6F4P The filament voltage ...... 6.3 ± 0.6VCurrent of glow ...... 720 ± 60 mA Triodic part:The anode voltage is nominal (constant) ...... 200 VAnode voltage limit (constant) ...... 250 VAnode current ...... 3 ± 0.9 mACathode limiting current ...... 12 mAPower dissipated by the anode, limiting ...... 1 WThe steepness of the characteristic ...... 4 ± 1 mA / VGain factor ...... 65Resistance in the cathode circuit for automatic bias ...... 600 OhmResistance in the grid limit chain ...... 1 MΩInput capacitance ...... 4 pFOutput capacity ...... 0.6 pFContinuous capacity ...... 2.7 pF Pentodnaya part:The anode voltage is nominal (constant) ...... 170 VAnode voltage limit (constant) ...... 250 VAnode current ...... 18 ± 6 mACathode limiting current ...... 40 mAThe grid voltage is the second rated (constant) ...... 170 VThe grid voltage is the second limiting (constant) ... 250 VThe current of the grid is the second ...... not more than 7 mAPower dissipated by the anode, limiting ...... 4 WThe power dissipated by the grid is the second, the limiting ...... 1.7 WThe steepness of the characteristic ...... 11 ± 9.5 mA / VInternal resistance ...... 100 kΩResistance in cathode circuit for automatic bias ...... 100 OhmResistance in the grid circuit is the first limit ... 1 MΩInput capacity ...... 9.5 pFOutput capacity ...... 4 pFThroughput capacity ...... not more than 0.1 pF Item description from the seller:RUSSIAN TUBES – LAST LETTERS (suffix) MEANING:V (B) - Tubes of increased reliability and mechanical strength. E - Long-life tubes with guaranteed life of more than 5,000 hours.EV (EB) - Tubes of increased reliability, mechanical strength guaranteed life of more than 5,000 hours.D (Д) - Extremely durable tubes with guaranteed life of more than 10,000 hours.DR (ДР) - Tubes of special, very high reliability, mechanical strength, and guaranteed life of more than 10,000 hours.I (И) - Tubes designed to operate in pulsed mode, characterized by increased emissivity of the cathode.K - Tubes with high vibration resistance.R (P) - Tubes of special, very high reliability, mechanical strength.OS (ОС) – Tubes special assembly (for the aviation industry). Shipment =========Sending parcels with a track number worldwide by airmailEstimate delivery time is 10-40 working days.