MATCHED PAIR 6N23P Tube Silver Shield 1975 Rare SWGP Reflector NOS/ ECC88 6922
Item History & Price
| Reference Number: Avaluer:17866704 | Non-Domestic Product: No |
| Type: Vacuum Tube | Model: 6n23p |
| MPN: Does Not Apply | Modified Item: No |
| Brand: REFLECTOR | Custom Bundle: No |
6n23p Reflector MATCHED PAIR new -2 pcs 1975 year RARE!
Getter on the wire. For better sound.EXCELENT TESTED=100%. USSR 100% ORIGINAL *..This is what says about the '75 Reflektor (Single Wire Getter Post) Silver Shield :The '75 SWGP Silvers were the best. What did they do different? They could discern the most subtile vocal overlays, no... matter how complex. Now on these tracks that's a trip, as at times there are 4 vocal harmonies going on at once. Wow! The HD800s are very transparent, so it's all presented in 3D fashion, the vocals layered at different depths in the sound field! The bass was deep and well defined, with excellent timbre. Tonally perfect mid-range, Welch's voice natural, no hint of etch*.
Selection of radio tubes. Why do you need to do this?
The selection of lamps is necessary for the correct and high-quality operation of the amplifier. The lamp is set to conditions identical to the amplifier. The sameness at maximum modes is checked at high voltages and currents. When choosing new lamps from a factory batch, for example, you can detect a deviation in the characteristics of the factory specifications for the anode current, and if you do not select the radio tubes in pairs, quartets, etc., this can lead not only to poor operation of the amplifier with high distortions, background , but also its failure. And even if several new lamps are from the same batch, this is not a complete guarantee of success.
The currents of the first and second anodes with: Ua=90VUh=6.3VAnode currents with bias voltage minus 0.5 VParameter measurement and steepness characterization were carried out in OCTOVBER 2019. MEASUREMENT RESULTS ARE SUSTAINABLE AND STABLE!
Main technical characteristics 6N23P:
The heating voltage ...... 6.3 ± 0.6 V
Current of heating ... 310 ± 25 mA
The anode voltage is nominal (constant) ...... 100 V
Anode voltage limit (constant) ...... 300 V
The current of the anode of each triode 15+-5Kathode limiting current ...... 20 mA
The cathode current is the limiting (pulse amplitude) ...... 200 mA
The grid voltage (constant) ...... 9 V
The grid voltage is the limiting (pulse amplitude) ...... 260 V
Power dissipated by the anode, limiting ...... 1.8 W
Power dissipated by the grid, limiting ...... 0.03 W
The voltage between the cathode and the heater is the limiting (constant) ...... -200 V
The steepness of the characteristics of each triode 8.... 12.7 mA / V
The gain of each triode is 34 ± 9
Input resistance at a frequency of 200 MHz ...... 500 Ohm
Equivalent resistance of intra-lamp noise ...... 300 Ohm
Resistance in the cathode circuit for automatic bias ...... 680 Ohm
Resistance in the grid limit chain ...... 1 Om
Input capacitance of each triode ...... 3.6 pF
Output capacitance of the first triode ...... 2.1 pF
Output capacitance of the second triode ...... 1.9 pF
The capacitance of each triode is 1.5 pF
Criteria for evaluation:reverse grid current, μA not more than 1slope of the characteristic, mA / V not less than 7.5
Maximum permissible electrical quantities:
Voltage of glow, V 5.7 - 7
Anode voltage, V 300
Anode voltage at a locked lamp, V 470
Anode voltage when the lamp is locked in pulse, V 1000
The grid voltage in the pulse is negative, V 200
Voltage between cathode and heater, V:
with a positive potential of the heater 200
at a negative potential of the heater 200
Cathode current, mA:
average of 20
in the pulse 200
Power dissipated by the anode of each triode, W 1.8
Power dissipated by the grid of each triode, W 0.03
Resistance in the grid circuit, MΩ 1
Lamp cylinder temperature, deg. C 120
Resistance to external influences:
vibration acceleration at 50 Hz, g 2.5
acceleration at multiple impacts, g 35
NOTE:
When operating the lamp, the values of the values that determine the mode should not exceed the specified limits. Failure to do so may result in loss of operability.
LiteratureYu.I.Tempner, V.E. Osherov. Handbook on broadcasting receivers (under the general editorship of VV Ogievsky). - K .: "State Publishing House of Technical Literature of Ukraine", 1949. - 371 p.
Dear Customer. I draw your attention to the fact that these unique and remarkable 6n23p reflector lamps of 1975 are a vintage product. Therefore, it is very important for us to carry out a thorough and high-quality training of lamps in different passport modes before selling, which requires a lot of time and constant monitoring of the process. It is our specialists who with the help of highly stable voltage sources and multi-turn variable resistors stabilize the anode currents, and the measurement parameters become stable. Restores cathode emission and improves vacuum. These are complex methods that can take about 4 hours per lamp. But only after such a workout the lamp is reliable, it opens and sounds beautiful. Be sure the result is worth it. We do it for you. Buy a quality and prepared product. Have a nice and enjoyable shopping!
I greatly appreciate your POSITIVE FEEDBACK. Please do not leave Negative feedback without asking for help. If you are unsatisfied with your items when received, please do not hesitate to contact us via. EBAY message, we will try our best to solve the problem within 24 hours.
Getter on the wire. For better sound.EXCELENT TESTED=100%. USSR 100% ORIGINAL *..This is what says about the '75 Reflektor (Single Wire Getter Post) Silver Shield :The '75 SWGP Silvers were the best. What did they do different? They could discern the most subtile vocal overlays, no... matter how complex. Now on these tracks that's a trip, as at times there are 4 vocal harmonies going on at once. Wow! The HD800s are very transparent, so it's all presented in 3D fashion, the vocals layered at different depths in the sound field! The bass was deep and well defined, with excellent timbre. Tonally perfect mid-range, Welch's voice natural, no hint of etch*.
Selection of radio tubes. Why do you need to do this?
The selection of lamps is necessary for the correct and high-quality operation of the amplifier. The lamp is set to conditions identical to the amplifier. The sameness at maximum modes is checked at high voltages and currents. When choosing new lamps from a factory batch, for example, you can detect a deviation in the characteristics of the factory specifications for the anode current, and if you do not select the radio tubes in pairs, quartets, etc., this can lead not only to poor operation of the amplifier with high distortions, background , but also its failure. And even if several new lamps are from the same batch, this is not a complete guarantee of success.
The currents of the first and second anodes with: Ua=90VUh=6.3VAnode currents with bias voltage minus 0.5 VParameter measurement and steepness characterization were carried out in OCTOVBER 2019. MEASUREMENT RESULTS ARE SUSTAINABLE AND STABLE!
Main technical characteristics 6N23P:
The heating voltage ...... 6.3 ± 0.6 V
Current of heating ... 310 ± 25 mA
The anode voltage is nominal (constant) ...... 100 V
Anode voltage limit (constant) ...... 300 V
The current of the anode of each triode 15+-5Kathode limiting current ...... 20 mA
The cathode current is the limiting (pulse amplitude) ...... 200 mA
The grid voltage (constant) ...... 9 V
The grid voltage is the limiting (pulse amplitude) ...... 260 V
Power dissipated by the anode, limiting ...... 1.8 W
Power dissipated by the grid, limiting ...... 0.03 W
The voltage between the cathode and the heater is the limiting (constant) ...... -200 V
The steepness of the characteristics of each triode 8.... 12.7 mA / V
The gain of each triode is 34 ± 9
Input resistance at a frequency of 200 MHz ...... 500 Ohm
Equivalent resistance of intra-lamp noise ...... 300 Ohm
Resistance in the cathode circuit for automatic bias ...... 680 Ohm
Resistance in the grid limit chain ...... 1 Om
Input capacitance of each triode ...... 3.6 pF
Output capacitance of the first triode ...... 2.1 pF
Output capacitance of the second triode ...... 1.9 pF
The capacitance of each triode is 1.5 pF
Criteria for evaluation:reverse grid current, μA not more than 1slope of the characteristic, mA / V not less than 7.5
Maximum permissible electrical quantities:
Voltage of glow, V 5.7 - 7
Anode voltage, V 300
Anode voltage at a locked lamp, V 470
Anode voltage when the lamp is locked in pulse, V 1000
The grid voltage in the pulse is negative, V 200
Voltage between cathode and heater, V:
with a positive potential of the heater 200
at a negative potential of the heater 200
Cathode current, mA:
average of 20
in the pulse 200
Power dissipated by the anode of each triode, W 1.8
Power dissipated by the grid of each triode, W 0.03
Resistance in the grid circuit, MΩ 1
Lamp cylinder temperature, deg. C 120
Resistance to external influences:
vibration acceleration at 50 Hz, g 2.5
acceleration at multiple impacts, g 35
NOTE:
When operating the lamp, the values of the values that determine the mode should not exceed the specified limits. Failure to do so may result in loss of operability.
LiteratureYu.I.Tempner, V.E. Osherov. Handbook on broadcasting receivers (under the general editorship of VV Ogievsky). - K .: "State Publishing House of Technical Literature of Ukraine", 1949. - 371 p.
Dear Customer. I draw your attention to the fact that these unique and remarkable 6n23p reflector lamps of 1975 are a vintage product. Therefore, it is very important for us to carry out a thorough and high-quality training of lamps in different passport modes before selling, which requires a lot of time and constant monitoring of the process. It is our specialists who with the help of highly stable voltage sources and multi-turn variable resistors stabilize the anode currents, and the measurement parameters become stable. Restores cathode emission and improves vacuum. These are complex methods that can take about 4 hours per lamp. But only after such a workout the lamp is reliable, it opens and sounds beautiful. Be sure the result is worth it. We do it for you. Buy a quality and prepared product. Have a nice and enjoyable shopping!
I greatly appreciate your POSITIVE FEEDBACK. Please do not leave Negative feedback without asking for help. If you are unsatisfied with your items when received, please do not hesitate to contact us via. EBAY message, we will try our best to solve the problem within 24 hours.
