[AZ-Observing] Re: Need a pointer please
- From: "Spencer, Darrell" <DSpencer@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Fri, 23 Jan 2009 07:15:55 -0800
1.5uF tantalum is a standard value. They're all over the place - including
eBay. Lacking a local source, and if you're only trying the circuit out before
committing, two 3.3uF caps in series would get you close. Or you could source
a trim cap and tune your circuit. For a dew heater, such precision is not
needed.
Allied, Newark or Sprague direct are good sources.
Good luck,
Darrell Spencer
________________________________
From: az-observing-bounce@xxxxxxxxxxxxx on behalf of Bob Christ
Sent: Fri 1/23/2009 8:01 AM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Need a pointer please
I have been unsuccessful in my search to buy a 1.5µF 20V Tantalum electrolytic
capacitor in the Valley. I have tried the usual suspects (Radio Shack, Fry's)
to no avail, and my Google searches have not been fruitful.
Does anyone know of a business in the valley that might sell such a component?
The capacitor is a critical part in a PWM (pulse width modulator) circuit that
I am building to efficiently supply juice to a dew heater strip. The things we
do to keep ourselves occupied astronomy wise when the skies are bad.
Thanks.
Bob
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