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PA-141

- Output: 50V, 1,000 VA
- Direct coupled linear output
- Voltage and current source modes
- External interlock circuitry
- Optional shaker field supplies
 

The Labworks PA-141 Linear Power Amplifier has two operational modes. The amplifier can be front panels switched to allow use as either a wide-band, highly damped voltage source, or as a high impedance current source. Optional, internal DC field power supplies can be supplied for use with Labworks ET-140 and ET-127 Shakers.

PA-141 Amplifiers feature protection from both over current and over temperature ensuring long term reliability. The amplifier has full interlock capabilities as well as peak voltage and RMS current bar graphs to monitor output.

These features are integrated to provide full "big system" performance with the convenience of a single chassis.

 
General Specifications
Output voltage 50 V rms
Output current 20 A rms
Max. cont. dissipation 900 W
Frequency response  
  Voltage source: DC - 10 KHz -.6 dB
  Current source: DC - 2 KHz -.2 dB @ 4 ohms
Max. voltage gain 36 dB
Max. current gain 22 A/V
Cooling: 2-speed fans, automatic
Input impedance 10 k-ohms
Meters  
  Volts, pk 19 segment bar graph, 5%
  Amps, rms/pk 19 segment bar graph, 5%
Interlock circuit  
  External, user Ext. switch or TTL
  Shaker, internal Cooling
Optional field power 1,000 W max.
Input power 2,200 VA (3,300 w/field)* @ 200, 220, or 240V**, single phase 50/60 Hz
Dimensions 7"H x 19"W x 17"D
Weight 48 lbs (21.8 Kg)
 
 
PA-141 back panel
 
Amplifier Options

Rack panel enclosure

BNC signal cables
 

*Maximum, see individual system requirements for actual system amplifier current required.

**100V, 110V operation requires optional step up transformer.