MATCHING QUALITY "1": "THE BEST" tubes - the difference between their parameters is not more than 1%. 




6N23P-EV vacuum tube by Reflektor factory. Equivalent to 6H23P-EB, 6922, E88CC, 6N23P 6Н23П (M3624, CV5358, ECC88, E88CC, 6DJ8).
Valve is new. Made in (USSR / Soviet / CCCP).
Price for 2 pcs.


6N23P-EV specifications and electrical parameters :
Filament voltage 6.3 ± 0.6 V
Heating current 310 ± 25 mA
Anode voltage nominal (constant) 100 V
Anode voltage limit (constant) 300 V
Anode current of each triode 15 mA
The cathode current limit 20 mA
Limit cathode current (pulse amplitude) 200 mA
Grid voltage (constant) 9 V
Limit grid voltage (pulse amplitude) 260 V
The power dissipated by the anode, the maximum 1.8 W
The power dissipated by the grid, the limit of 0.03 W
The voltage between the cathode and the heater limit (constant) -200 V
The steepness of the characteristics of each triode 12.7 mA / V
The gain of each triode is 34 ± 9
Input impedance at 200 MHz 500 Ohm
Equivalent resistance of intra-tube noise 300 Ohm
Resistance in the cathode circuit for automatic bias of 680 Ohms
Resistance in the grid circuit limit 1 MΩ
Input capacitance of each triode 3.6 pF
Output capacity of the first triode 2.1 pF
Output capacitance of the second triode 1.9 pF
Capacity through passage of each triode 1,5 pF
The capacity of the anode - the cathode of each triode is 0.18 pF
The capacity between the anodes is not more than 0.06 pF
Capacity between grids no more than 0,005 pF
Making a glass miniature

MATCHING QUALITY "1": "THE BEST" tubes - the difference between their parameters is not more than 1%. 

non-original boxes used to describe the characteristics of the tubes

IMPORTANT NOTICE!! 
You can get differ tubes with other parameters,  not like at the photo. 
Because I have many tubes and can not make photo of each. 
So, you will get one Matched PAIR with very similar parameters (WITH 1% tolerance), 
but they must not be the same as at the photo. 

TESTING PROCESS INFO
We actually test all sold tubes on L3-3 testers (sometimes L1-3).
We have more than 10 such devices each ajusted precisely for the specific tasks.
When selecting tubes close in parameter, we re-test on the best (carefully calibrated devices.
It is theoretically impossible to select tubes with a difference of 0% on any device.
From a batch of 100 pieces of any new or vintage number of pairs with a spread of 1-2%, no more than 10.
During testing, any tube changes its parameters by 1-2% in any direction over time.
This information is based on inspections of over 100,000 tubes over many years.
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Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.