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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 used 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. These options provide the convenience of a single chassis, as well as fully integrated power-up and cooling interlocks.
 
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 2,000 VA (3,000 w/field)
  Voltage 208 or 230 Vac, single phase
  Frequency 48 to 62 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