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Author Topic: component question  (Read 1321 times)
M0JHA
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Posts: 646




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« on: September 12, 2010, 12:54:38 PM »

im half way through building my 30m rockmite. i have found im missing a .022uF monolithic cap.

can i use a ceramic cap of the same value (223z)

billy
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KE3WD
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Posts: 5689




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« Reply #1 on: September 12, 2010, 02:33:51 PM »

0.022uF = 22nF  = 22000pF

So the value looks right.

As for whether or not you can get away with it, well, the monolithic cap certainly will exhibit less inductance and that may or may not come into play with the circuit at hand. 

Simple enough to just try it out and see, though.

Here's a qrz thread from 2007 that addresses the same issue:

http://forums.qrz.com/archive/index.php/t-128476.html



 
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M0JHA
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« Reply #2 on: September 13, 2010, 06:46:16 AM »

sorry my mistake, the actual component was there  Embarrassed

it looked different to all the other monolithics but a look inside my other rock confirmed it was the correct component.

billy
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KE3WD
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« Reply #3 on: September 13, 2010, 06:48:45 AM »

It is a big man or woman who can come back and let us know it was only something of this nature.   

Good for you. 

Enjoy finishing the project and may you have many happy hours of QSOs and Good DX with it.


73
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M0JHA
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« Reply #4 on: September 13, 2010, 01:53:43 PM »

well i don't mind being wrong. Grin  apparently my wife thinks i am very often.. Grin

its all a learning curve and that can only be good.

rig finished , smoke test went well and just ready to house it tomorrow.

cheers , billy
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