Analogheart
Active member
- Joined
- Dec 27, 2010
- Messages
- 26
Hi All,
I constructed this circuit on a copper strip board according to the schematic diagram shown. However, there is a constant hum. Someone suggested that the circuit is drawn wrongly & the pin 1 of R11 should not be be connected to signal ground, but to pin 7 ie; o/p of IC1B instead as shown in red lines! I thought I'd ask for some expert opinion before I do this!
Can any one of you guys please help me with your expertise?
Thanks
I constructed this circuit on a copper strip board according to the schematic diagram shown. However, there is a constant hum. Someone suggested that the circuit is drawn wrongly & the pin 1 of R11 should not be be connected to signal ground, but to pin 7 ie; o/p of IC1B instead as shown in red lines! I thought I'd ask for some expert opinion before I do this!
Can any one of you guys please help me with your expertise?
Thanks
