TijuanaKez
Well-known member
- Joined
- Jul 19, 2011
- Messages
- 51
Hey there knowledgable wizards. Still very much an inexperienced learner, but getting ready to tackle my first useful project.
Problem to be solved is having a super quick way to check for the existence of signal directly before or after stage DI box.
I'm imagining a 10 segment LED bar driven by an LM3914 or similar.
I thought I could use the input stage from this project as a base, but drive the LM3914 directly without Arduino's and such.
So before I waste too much time, my first important question is... is the 1M resistor in the linked input stage sufficient enough to protect the delicate signal of an acoustic guitar piezo pickup for example?
I need to be able to roughly meter signal but without altering it.
The quality of the amp is obviously unimportant, I only want to be able to get confirmation that a signal is present.
Ultimately, I will need to incorporate a switch to detect either Hi-Z signals or line level signals, depending on whats plugging into the DI.
thanks!
Problem to be solved is having a super quick way to check for the existence of signal directly before or after stage DI box.
I'm imagining a 10 segment LED bar driven by an LM3914 or similar.
I thought I could use the input stage from this project as a base, but drive the LM3914 directly without Arduino's and such.
So before I waste too much time, my first important question is... is the 1M resistor in the linked input stage sufficient enough to protect the delicate signal of an acoustic guitar piezo pickup for example?
I need to be able to roughly meter signal but without altering it.
The quality of the amp is obviously unimportant, I only want to be able to get confirmation that a signal is present.
Ultimately, I will need to incorporate a switch to detect either Hi-Z signals or line level signals, depending on whats plugging into the DI.
thanks!