PS125 Open Frame Power Amplifier

Rugged power amplifier for audio and instrumentation.
Balanced or Single ended inputs (differential input)..
150 Watt RMS.    MOSFET output stage.
Toroidal power transformer.
Large filter capacitance, up to 30,000uF .
Heavy duty open frame construction.
Several versions with output voltage up to 120VRMS.
Dimensions 13" x 6" x 3".
Custom modifications available.

The PS125 power amplifier series provide high quality power amplifier in an economical and rugged construction. The unit has a toroidal power transformer and linear rectifier unit mounted in a heavy duty aluminum chassis that acts as the heat sink for the power amplifier. The PS125 uses a heavy duty  toroidal power transformer. The PS125 is ideal for OEM applications, powered amplifiers, for driving precision servo motors, instrumentation and so on. The amplifier is short circuit protected, and also has thermal protection, making these units almost indestructible. Typical power bandwidth of the amplifiers is DC to 25KHz. The amplifiers have differential inputs that can be used with a unbalanced or balanced source. An internal jumper selects between AC or DC coupling. Typical harmonic distortion is 0.01% or less. Typical load capability of the amplifiers is 8 Ohm, but the amps are stable with most loads, resistive and capacitive. For different load requirements consult factory.


    
Model Number 
Transformer  Installed
Gain *
 Output voltage swing 
Output current  limit
Remarks
PS125-35  
35V            
10
 -45V - +45V           
 10A          
Audio and general purpose use
PS125-40   
40V            
10
 -40V - +40V           
  9A          
Audio and general purpose use
PS125-55
55V            
10
 -55V - +5V           
  8A          
Audio and general purpose use
PS125-120 
120V            
30
-130V - +153V          
 0.5A         
High voltage amplifier 
PS125-140 
140V      
30
-170V - +170V
 0.4A         
120VRMS output  

* for other gain consult factory