Author Topic: Quasar Question (C1)  (Read 1146 times)

PhiloB

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Quasar Question (C1)
« on: January 26, 2014, 09:43:51 PM »
I messed up ordering.  I didn't order C1 - 47nF.  Can I substitute another value or is this a critical value.  I've socketed the PCB at that point so that I can hopefully test the circuit and replace the cap with the appropriate value when I get it. 
So, can I jump it with a wire just to test? I have an extra 100nF I could use.
Thanks for any help!
P
I'm including the Quasar PDF

Leevibe

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Re: Quasar Question (C1)
« Reply #1 on: January 26, 2014, 10:13:49 PM »
I dont know that circuit but i think 2 100nF in series should be close enough (50nF) for test purposes. 

PhiloB

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Re: Quasar Question (C1)
« Reply #2 on: January 26, 2014, 11:14:51 PM »
Thanks LeeVibe.  I'll give it a shot tomorrow.

RobA

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Re: Quasar Question (C1)
« Reply #3 on: January 26, 2014, 11:37:59 PM »
Moving C1 to 100nF is most likely going to be fine for this. It'll just let a bit more bass through. Depending on the input impedance, you may not even notice any difference.
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jkokura

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Re: Quasar Question (C1)
« Reply #4 on: January 26, 2014, 11:53:45 PM »
22nf-100nf will work fine. Whatever you have in that range should work. You may find more bass content is necessary if you use a low value and may want to switch in a higher value, but if you find too much bass with a high value you should lower it.

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PhiloB

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Re: Quasar Question (C1)
« Reply #5 on: January 27, 2014, 12:26:40 AM »
Thanks guys

PhiloB

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Re: Quasar Question (C1)
« Reply #6 on: January 27, 2014, 03:22:54 PM »
Had to run an errand earlier today and drove by RadioShack. So I figured, I'd step in and see what they had. Picked up 47 nF capacitor for two bucks! A rip off but beats paying shipping handling. Rocked it before I boxed it and the circuit works perfectly :-)

RobA

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Re: Quasar Question (C1)
« Reply #7 on: January 27, 2014, 05:02:20 PM »
An RS by you still has parts in it? The last one I went into only had cell phones. It's cool you were able to get the right part though.
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Leevibe

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Re: Quasar Question (C1)
« Reply #8 on: January 27, 2014, 06:38:18 PM »
Glad it's working!!  It's hard to avoid the occasional RS shopping trip.  Ours has plenty of stuff, it's just usually everything but what I need.