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Laboratory Power Amplifiers & Signal Sources

ATA-7000 Series High Voltage Amplifier

Output from 2kVp-p up to 20kVp-p (±10kVp), Bandwidth (-3dB) up to DC~100kHz, Voltage gain digitally adjustable

Some high-voltage applications, such as dielectric testing, insulation characterisation and research involving strong electric fields, need kilovolts of drive rather than hundreds of volts. Aigtek's ATA-7000 Series covers this with high-voltage amplifiers that amplify both AC and DC signals, from 2kVp-p (±1kVp) on the ATA-7010 up to 20kVp-p (±10kVp) on the ATA-7100.

As with most high-voltage designs, bandwidth and current fall as voltage rises: the ATA-7010 reaches 100kHz with up to 40mAp, while the ATA-7100 delivers 20kVp-p at up to 1.2kHz and 2mAp. Voltage gain is digitally adjustable on every model.

The ATA-7015B, ATA-7050B and ATA-7100 add four-quadrant output, DC bias adjustment, current monitoring, USB program control and single-shot output protection, suiting capacitive loads and applications with large current fluctuations.

Inquire About This Range →
Aigtek ATA-7000 Series High Voltage Amplifier
ATA-7000 Series High Voltage Amplifier
Output from 2kVp-p up to 20kVp-p (±10kVp), drives high-voltage loads. Voltage gain digitally adjustable.
Enquire About This Series →
ModelBandwidth (-3dB)VoltageCurrentPowerChannel 
ATA-7010DC~100kHz2kVp-p(±1kVp)40mAp40WpSingleEnquire
ATA-7015BDC~40kHz3kVp-p(±1.5kVp)40mAp60WpSingleEnquire
ATA-7015DC~80kHz3kVp-p(±1.5kVp)40mAp60WpSingleEnquire
ATA-7020DC~30kHz4kVp-p(±2kVp)30mAp60WpSingleEnquire
ATA-7025DC~10kHz5kVp-p(±2.5kVp)30mAp75WpSingleEnquire
ATA-7030DC~5kHz6kVp-p(±3kVp)30mAp90WpSingleEnquire
ATA-7050BDC~5kHz10kVp-p(±5kVp)20mAp100WpSingleEnquire
ATA-7050DC~5kHz10kVp-p(±5kVp)20mAp100WpSingleEnquire
ATA-7100DC~1.2kHz20kVp-p(±10kVp)2mAp20WpSingleEnquire
Model Details
ATA-7010: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-7010 is a high-voltage amplifier capable of amplifying both AC and DC signals, with single-ended output up to 2kVp-p (±1kVp). Voltage gain is digitally adjustable, with one-click saving of frequently used settings.

LCD Panel DisplayDynamically shows device status and parameters, offering a clear and intuitive interface.
InputBNC connector.
Voltage GainDigitally adjustable x0~x1000, with the gain shown on the LCD for quick, precise adjustment.
OutputSHV RF connector, max output voltage 2kVp-p (±1kVp), max output current 40mAp.
Monitor1/1000 voltage monitor (BNC) for real-time oscilloscope monitoring of the output voltage.
Specifications
ModelATA-7010
Number of Channels1
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~100kHz
Maximum Output Voltage2kVp-p (±1kVp)
Maximum Output Current20mAp (DC~50Hz)  40mAp (>50Hz)
Maximum Output Power40Wp
Fuse3A/250V
Voltage Gainx0~1000 (1 step/10 step)
Load RL Upper Limit≥49.5kΩ (DC~50Hz)  ≥24.5kΩ (>50Hz)
Input Impedance10kΩ
Output Impedance500Ω
Slew Rate≥445V/μs
Output Voltage Error≤±1% @ (DC, 1kV)
Voltage Monitoring1000:1 (±5% @ Output, FS)
Input Amplitude0~10Vp-p MAX
Total Harmonic Distortion (THD)≤1% @ 1kHz, 1.6kVp-p
Output Voltage Zero Drift≤±1V
Output InterfaceSHV RF connector
Output ProtectionOver Current Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC220V±10%, 50Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions442×164×574mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATA-7010, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-7010 →
ATA-7015B: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-7015B is a high-voltage amplifier capable of amplifying both AC and DC signals, with four-quadrant output up to 3kVp-p (±1.5kVp). It can stably source and sink both positive and negative voltage and current to drive capacitive or inductive loads.

Output ControlHigh-voltage output is controlled by a dedicated output switch together with a BNC enable connector: with the shorting cap fitted the output is on; with it removed the output is off and the panel shows UNABLE OUTPUT_OFF.
Voltage GainDigitally adjustable in 1-step or 10-step increments, with one-click saving of common settings and the gain shown on the LCD.
Output ProtectionIn single-shot protection mode, the output is cut off if a load breakdown shorts the output, suiting capacitive loads and applications with large current fluctuations.
Dynamic Response AdjustmentA one-turn rotary panel potentiometer optimises AC response for different load parameters.
Specifications
ModelATA-7015B
Number of Channels1
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~40kHz
Maximum Output Voltage3kVp-p (±1.5kVp)
Maximum Output Current20mAp (DC~50Hz)  40mAp (>50Hz)
Maximum Output Power60Wp
Fuse4A/250V
Voltage Gainx0~1000 (1 step/10 step)
Load RL Upper Limit≥74.5kΩ (DC~50Hz)  ≥37kΩ (>50Hz)
Input Impedance10kΩ
Output Impedance500Ω
Slew Rate≥266V/μs
DC Bias Adjustment±1500V (1V step/10V step)
Output Voltage Error≤±1% @ (DC, 1.5kV)
Voltage Monitoring1mV/V (±5% @ Output, FS)
Current Monitoring100V/A (±5% @ Output, FS)
Input Amplitude0~10Vp-p MAX
Total Harmonic Distortion (THD)≤1% @ 1kHz, 2.4kVp-p
Output Voltage Zero Drift≤±1V
Output InterfaceSHV RF connector
Program Control InterfaceUSB
Output ProtectionShort Circuit Protection, Over Current Protection
Protection ModeSingle Shot Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC110~240V, 50/60Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions440×149×535mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATA-7015B, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-7015B →
ATA-7015: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-7015 is a high-voltage amplifier capable of amplifying both AC and DC signals, with single-ended output up to 3kVp-p (±1.5kVp). Voltage gain is digitally adjustable, with one-click saving of frequently used settings.

LCD Panel DisplayDynamically shows device status and parameters, offering a clear and intuitive interface.
InputBNC connector.
Voltage GainDigitally adjustable x0~x1000, with the gain shown on the LCD for quick, precise adjustment.
OutputSHV RF connector, max output voltage 3kVp-p (±1.5kVp), max output current 40mAp.
Monitor1/1000 voltage monitor (BNC) for real-time oscilloscope monitoring of the output voltage.
Specifications
ModelATA-7015
Number of Channels1
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~80kHz
Maximum Output Voltage3kVp-p (±1.5kVp)
Maximum Output Current20mAp (DC~50Hz)  40mAp (>50Hz)
Maximum Output Power60Wp
Fuse4A/250V
Voltage Gainx0~1000 (1 step/10 step)
Load RL Upper Limit≥74.5kΩ (DC~50Hz)  ≥37kΩ (>50Hz)
Input Impedance10kΩ
Output Impedance500Ω
Slew Rate≥534V/μs
Output Voltage Error≤±1% @ (DC, 1.5kV)
Voltage Monitoring1000:1 (±5% @ Output, FS)
Input Amplitude0~10Vp-p MAX
Total Harmonic Distortion (THD)≤1% @ 1kHz, 2.4kVp-p
Output Voltage Zero Drift≤±1V
Output InterfaceSHV RF connector
Output ProtectionOver Current Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC220V±10%, 50Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions442×164×574mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATA-7015, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-7015 →
ATA-7020: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-7020 is a high-voltage amplifier capable of amplifying both AC and DC signals, with single-ended output up to 4kVp-p (±2kVp). Voltage gain is digitally adjustable, with one-click saving of frequently used settings.

LCD Panel DisplayDynamically shows device status and parameters, offering a clear and intuitive interface.
InputBNC connector.
Voltage GainDigitally adjustable x0~x1000, with the gain shown on the LCD for quick, precise adjustment.
OutputSHV RF connector, max output voltage 4kVp-p (±2kVp), max output current 30mAp.
Monitor1/1000 voltage monitor (BNC) for real-time oscilloscope monitoring of the output voltage.
Specifications
ModelATA-7020
Number of Channels1
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~30kHz
Maximum Output Voltage4kVp-p (±2kVp)
Maximum Output Current15mAp (DC~50Hz)  30mAp (>50Hz)
Maximum Output Power60Wp
Fuse4A/250V
Voltage Gainx0~1000 (1 step/10 step)
Load RL Upper Limit≥132.33kΩ (DC~50Hz)  ≥65.67kΩ (>50Hz)
Input Impedance10kΩ
Output Impedance1kΩ
Slew Rate≥267V/μs
Output Voltage Error≤±1% @ (DC, 2kV)
Voltage Monitoring1000:1 (±5% @ Output, FS)
Input Amplitude0~10Vp-p MAX
Total Harmonic Distortion (THD)≤1% @ 1kHz, 3.2kVp-p
Output Voltage Zero Drift≤±1V
Output InterfaceSHV RF connector
Output ProtectionOver Current Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC220V±10%, 50Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions442×164×574mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATA-7020, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-7020 →
ATA-7025: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-7025 is a high-voltage amplifier capable of amplifying both AC and DC signals, with single-ended output up to 5kVp-p (±2.5kVp). Voltage gain is digitally adjustable, with one-click saving of frequently used settings.

LCD Panel DisplayDynamically shows device status and parameters, offering a clear and intuitive interface.
InputBNC connector.
Voltage GainDigitally adjustable x0~x1000, with the gain shown on the LCD for quick, precise adjustment.
OutputSHV RF connector, max output voltage 5kVp-p (±2.5kVp), max output current 30mAp.
Monitor1/1000 voltage monitor (BNC) for real-time oscilloscope monitoring of the output voltage.
Specifications
ModelATA-7025
Number of Channels1
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~10kHz
Maximum Output Voltage5kVp-p (±2.5kVp)
Maximum Output Current15mAp (DC~50Hz)  30mAp (>50Hz)
Maximum Output Power75Wp
Fuse4A/250V
Voltage Gainx0~1000 (1 step/10 step)
Load RL Upper Limit≥165.17kΩ (DC~50Hz)  ≥81.8kΩ (>50Hz)
Input Impedance10kΩ
Output Impedance1.5kΩ
Slew Rate≥112V/μs
Output Voltage Error≤±1% @ (DC, 2.5kV)
Voltage Monitoring1000:1 (±5% @ Output, FS)
Input Amplitude0~10Vp-p MAX
Total Harmonic Distortion (THD)≤1% @ 1kHz, 4kVp-p
Output Voltage Zero Drift≤±1V
Output InterfaceSHV RF connector
Output ProtectionOver Current Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC220V±10%, 50Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions442×164×574mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATA-7025, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-7025 →
ATA-7030: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-7030 is a high-voltage amplifier capable of amplifying both AC and DC signals, with single-ended output up to 6kVp-p (±3kVp). Voltage gain is digitally adjustable, with one-click saving of frequently used settings.

LCD Panel DisplayDynamically shows device status and parameters, offering a clear and intuitive interface.
InputBNC connector.
Voltage GainDigitally adjustable x0~x1000, with the gain shown on the LCD for quick, precise adjustment.
OutputSHV RF connector, max output voltage 6kVp-p (±3kVp), max output current 30mAp.
Monitor1/1000 voltage monitor (BNC) for real-time oscilloscope monitoring of the output voltage.
Specifications
ModelATA-7030
Number of Channels1
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~5kHz
Maximum Output Voltage6kVp-p (±3kVp)
Maximum Output Current15mAp (DC~50Hz)  30mAp (>50Hz)
Maximum Output Power90Wp
Fuse4A/250V
Voltage Gainx0~1000 (1 step/10 step)
Load RL Upper Limit≥198.5kΩ (DC~50Hz)  ≥98.5kΩ (>50Hz)
Input Impedance10kΩ
Output Impedance1.5kΩ
Slew Rate≥67V/μs
Output Voltage Error≤±1% @ (DC, 3kV)
Voltage Monitoring1000:1 (±5% @ Output, FS)
Input Amplitude0~10Vp-p MAX
Total Harmonic Distortion (THD)≤1% @ 1kHz, 4.8kVp-p
Output Voltage Zero Drift≤±1V
Output InterfaceSHV RF connector
Output ProtectionOver Current Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC220V±10%, 50Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions442×164×574mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATA-7030, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-7030 →
ATA-7050B: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-7050B is a high-voltage amplifier capable of amplifying both AC and DC signals, with four-quadrant output up to 10kVp-p (±5kVp). It can stably source and sink both positive and negative voltage and current to drive capacitive or inductive loads.

Output ControlHigh-voltage output is controlled by a dedicated output switch together with a BNC enable connector: with the shorting cap fitted the output is on; with it removed the output is off and the panel shows UNABLE OUTPUT_OFF.
Voltage GainDigitally adjustable in 1-step or 10-step increments, with one-click saving of common settings and the gain shown on the LCD.
Output ProtectionIn single-shot protection mode, the output is cut off if a load breakdown shorts the output, suiting capacitive loads and applications with large current fluctuations.
Dynamic Response AdjustmentA one-turn rotary panel potentiometer optimises AC response for different load parameters.
Specifications
ModelATA-7050B
Number of Channels1
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~5kHz
Maximum Output Voltage10kVp-p (±5kVp)
Maximum Output Current10mAp (DC~50Hz)  20mAp (>50Hz)
Maximum Output Power100Wp
Fuse4A/250V
Voltage Gainx0~2000 (1 step/10 step)
Load RL Upper Limit≥495kΩ (DC~50Hz)  ≥245kΩ (>50Hz)
Input Impedance10kΩ
Output Impedance5kΩ
Slew Rate≥111V/μs
DC Bias Adjustment±5000V (1V step/10V step)
Output Voltage Error≤±3% @ (DC, 5kV)
Voltage Monitoring1mV/V (±5% @ Output, FS)
Current Monitoring100V/A (±5% @ Output, FS)
Input Amplitude0~10Vp-p MAX
Total Harmonic Distortion (THD)≤1% @ 1kHz, 8kVp-p
Output Voltage Zero Drift≤±1V
Output InterfaceHigh Voltage connector
Program Control InterfaceUSB
Output ProtectionShort Circuit Protection, Over Current Protection
Protection ModeSingle Shot Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC110~240V, 50/60Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions440×194×634mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATA-7050B, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-7050B →
ATA-7050: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-7050 is a high-voltage amplifier capable of amplifying both AC and DC signals, with single-ended output up to 10kVp-p (±5kVp). Voltage gain is digitally adjustable, with one-click saving of frequently used settings.

LCD Panel DisplayDynamically shows device status and parameters, offering a clear and intuitive interface.
InputBNC connector.
Voltage GainDigitally adjustable x0~x2000, with the gain shown on the LCD for quick, precise adjustment.
OutputMax output voltage 10kVp-p (±5kVp), max output current 20mAp.
Monitor1/1000 voltage monitor (BNC) for real-time oscilloscope monitoring of the output voltage.
Specifications
ModelATA-7050
Number of Channels1
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~5kHz
Maximum Output Voltage10kVp-p (±5kVp)
Maximum Output Current10mAp (DC~50Hz)  20mAp (>50Hz)
Maximum Output Power100Wp
Fuse4A/250V
Voltage Gainx0~2000 (1 step/10 step)
Load RL Upper Limit≥495kΩ (DC~50Hz)  ≥245kΩ (>50Hz)
Input Impedance10kΩ
Output ImpedanceSwitchable between 5kΩ and 200kΩ
Slew Rate≥111V/μs
Output Voltage Error≤±3% @ (DC, 5kV)
Voltage Monitoring1000:1 (±5% @ Output, FS)
Input Amplitude0~10Vp-p MAX
Total Harmonic Distortion (THD)≤1% @ 1kHz, 8kVp-p
Output Voltage Zero Drift≤±1V
Output InterfaceHigh Voltage connector
Output ProtectionOver Current Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC220V±10%, 50Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions442×297×574mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATA-7050, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-7050 →
ATA-7100: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-7100 is a high-voltage amplifier capable of amplifying both AC and DC signals, with four-quadrant output up to 20kVp-p (±10kVp). It can stably source and sink both positive and negative voltage and current to drive capacitive or inductive loads.

Output ControlHigh-voltage output is controlled by a dedicated output switch together with a BNC enable connector: with the shorting cap fitted the output is on; with it removed the output is off and the panel shows UNABLE OUTPUT_OFF.
Voltage GainDigitally adjustable in 1-step or 10-step increments, with one-click saving of common settings and the gain shown on the LCD.
Output ProtectionIn single-shot protection mode, the output is cut off if a load breakdown shorts the output, suiting capacitive loads and applications with large current fluctuations.
Dynamic Response AdjustmentA one-turn rotary panel potentiometer optimises AC response for different load parameters.
Specifications
ModelATA-7100
Number of Channels1
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~1.2kHz
Maximum Output Voltage20kVp-p (±10kVp)
Maximum Output Current1mAp (DC~50Hz)  2mAp (>50Hz)
Maximum Output Power20Wp
Fuse4A/250V
Voltage Gainx0~2000 (1 step/10 step)
Load RL Upper Limit≥10MΩ (DC~50Hz)  ≥5MΩ (>50Hz)
Input Impedance10kΩ
Output Impedance10kΩ
Slew Rate≥53V/μs
DC Bias Adjustment±10000V (1V step/10V step)
Output Voltage Error≤±3% @ (DC, 10kV)
Voltage Monitoring0.5mV/V (±5% @ Output, FS)
Current Monitoring1000V/A (±5% @ Output, FS)
Input Amplitude0~10Vp-p MAX
Total Harmonic Distortion (THD)≤1% @ 1kHz, 16kVp-p
Output Voltage Zero Drift≤±1V
Output InterfaceHigh Voltage connector
Program Control InterfaceUSB
Output ProtectionShort Circuit Protection, Over Current Protection
Protection ModeSingle Shot Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC110~240V, 50/60Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions440×194×634mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATA-7100, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-7100 →
Related Series
ATA-700 Series
ATA-700 Series
High-voltage amplifier, up to 20kVpp

Frequently Asked Questions

How do I choose between ATA-7000 models?

Start from the voltage your load needs, then check bandwidth and current. Maximum output ranges from 2kVp-p (ATA-7010) to 20kVp-p (ATA-7100); bandwidth ranges from 100kHz on the ATA-7010 down to 1.2kHz on the ATA-7100, and maximum output current from 40mAp down to 2mAp.

What do the ATA-7015B, ATA-7050B and ATA-7100 add?

Four-quadrant output that can source and sink both positive and negative voltage and current, adjustable DC bias, voltage and current monitor ports, USB program control, and single-shot protection that cuts the output if a load breakdown shorts it.

How does the ATA-7000 compare with the ATA-700 series?

Both cover kilovolt-level output up to 20kVp-p. At 2 to 4kVp-p the ATA-7000 offers wider bandwidth, for example 100kHz on the ATA-7010 at 2kVp-p versus 25kHz on the ATA-701, and 30kHz on the ATA-7020 at 4kVp-p versus 10kHz on the ATA-702. At 6kVp-p and above, the matching models in the two series have the same bandwidth.

See Aigtek's technical documentation for the ATA-7000 series →

Send an Enquiry →Send an Enquiry →

Related Reading

Read: High-Voltage Dielectric Material Testing — Why Low Frequency Needs Kilovolt-Range Amplifiers