Sound Magus DK600 - TL494 Oscillator frequency

[John KD]

Do anyone know the oscillator frequency for the TL494 or the value for the timing capacitor (pin-5) ?
Timing resistor is 10K (103 smd - pin 6).
similar amp maybe Excursion KXA-1K.

 

[Perry Babin]

From a similar amp, the timing cap is 2200pf.