4pcs. 6J52P = E810F = D3A = 7788 pentode low noise USSR new one date

Description

1 - Lot  4pcs.  6J52P = E810F = D3A = 7788 pentode low noise USSR new one date
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6J52P
Miniature low-noise pentode.
Designed for voltage amplification in broadband amplifiers.
The position of the pins RSH8.
Durability of at least 1000 hours.
Weight not more than 15 g.
Contacts 6J52P: 1.3 cathode 2 first grid 4 glow 5 heat-not connected 7 anode 8 third grid 9 second grid
Technical characteristics and electrical parameters of the 6j52p lamp:
Rated electrical characteristics:
* Incandescent voltage, V 6.3 ± 0.6
* Incandescent current, MA 330 ± 40
* Anode voltage, V 100
* Voltage on the second grid, V 150
* Resistance in the cathode circuit, 24 ohms
* Current in the anode circuit, mA 41 ± 11
* Current in the second circuit of the network, mA no more than 8
• The steepness of the characteristic, mA / In 55 ± 10
* Input impedance, Kohm 0, 7
* Equivalent noise resistance, 150 ohms
• The current of the first network is reverse, mkA not more than 0.2
Maximum permissible electrical values:
* Maximum voltage at the anode, V 250
* The maximum voltage on the second grid is 250 V
* Maximum power dissipated at the anode, 7.5 W
* Maximum power dissipated on the second grid, 1.2 W
* Maximum current in the cathode circuit, mA 60
* Maximum current of the cathode-heating voltage, V 200
• The highest resistance in the first grid circuit is 0.5 Mohm
* Glass miniature.