Toggle sidebar Toggle sidebar
  • You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

Bird 43 w/ PEP Question

B

BoogieDown

Member
Mar 31, 2010
9
1
13
Why do Bird 43s w/ PEP kit have to be powered by 9v batteries? Can it be powered off 13.8VDC with the proper dropping resistors?
 

BoogieDown said:
Why do Bird 43s w/ PEP kit have to be powered by 9v batteries? Can it be powered off 13.8VDC with the proper dropping resistors?
Click to expand...

The original design goes back some years ago.
And it was originally designed with a single ended op-amp that required a +- 9 volts power source to meet the needs of the circuit design parameters.

But a long time has passed since the original design and better op-amps have come along and that circuit has been redesigned in mulitple versions and the +- power source requirements have been designed out of it.
 
Last edited:

dxChat
Help Users
  • No one is chatting at the moment.
  • @ BJ radionut:
    +1
  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.


      Top Bottom