From: trevor@rageaudio.com.au   
      
   On 4/09/2022 5:06 am, Phil Hobbs wrote:   
   > Trevor Wilson wrote:   
   >> I am servicing a power amplifier which uses a dual, 8 pin DIP OP amp.   
   >> Unfortunately, the rail Volts on the OP amp (LF353) is +/- 22 Volts. I   
   >> am familiar with this particular amplifier and OP amp failure is quite   
   >> a frequent thing. I need a suggested replacement. I am quite happy to   
   >> use single OP amps, or SOICs, as I can employ a Brown Dog carrier to   
   >> adapt to the existing layout. Ideally, a bit more performance over the   
   >> LF353 would be nice.   
   >>   
   >> And no, it is not possible to drop the rail Voltages. They must remain   
   >> at +/-22 Volts.   
   >>   
   >> TIA   
   >   
   > What's the required output swing?  A baby board with one or two zeners   
   > in the supply leads (plus a 100 nF-ish bypass between them) is pretty   
   > easy, at least if you get these things in a lot.   
   >   
   > Cheers   
   >   
   > Phil Hobbs   
   >   
      
   **I need maximum output Voltage swing. Hence the designer (now deceased)   
   chose a +/- 22 Volt supply. Hence the need for higher Voltage OP amps.   
      
      
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