I have an old amplifier unit that runs on A.C and I'm trying to make it a battery powered amp
I understand that the A.C voltage get rectified to 15+/15- D.C with a common ground so I used a 36v li-ion battery pack and the following circut to get a virtual ground
the circuit works but when it's connected to the amp power rails the virtual ground voltage drops to 0.8 V , is it because of capacitive load instability ? is there any solutions ?
Note : I'm using a LM324N Opamp I.C and the unit uses a NJM4558 DUAL OPERATIONAL AMPLIFIER I.C