Hi Ken and all
I'm building up the BOG panel and have done the two VCO's but am experiencing a few problems with both.
One VCO is working fine apart from VC Freq pot ; seems to have zero effect on the Frequency when fed CV and when turned ; it also cuts out at the very lowest range , shorting to some sort of low droning sound.
The Second VCO has no output , no change when Freq pot is moved but when FM'd , PWM'd or CV is applied the the Variable CV input , i'm getting sound from the outputs.
When i checked this Second VCO , i found i had only soldered Pins 1 and 5 of the TL072 directly above the unicorn figure.
Could this have caused damage to other parts of the circuit ?
[Non-text portions of this message have been removed]
I'm building up the BOG panel and have done the two VCO's but am experiencing a few problems with both.
One VCO is working fine apart from VC Freq pot ; seems to have zero effect on the Frequency when fed CV and when turned ; it also cuts out at the very lowest range , shorting to some sort of low droning sound.
The Second VCO has no output , no change when Freq pot is moved but when FM'd , PWM'd or CV is applied the the Variable CV input , i'm getting sound from the outputs.
When i checked this Second VCO , i found i had only soldered Pins 1 and 5 of the TL072 directly above the unicorn figure.
Could this have caused damage to other parts of the circuit ?
[Non-text portions of this message have been removed]