May I use a 108-130UF 250VAC polarized electrolytic starting capacitor from ACE hardware to replace the bad one in my CDE/HamII rotator control box? -- Thanks! & 73, doc, KD4E Personal: http://bibles
You got a capacitor from ACE Hardware? What a country! It should be non-polarized, though, if it's really an AC capacitor... -WB2WIK/6 May I use a 108-130UF 250VAC polarized electrolytic starting cap
Motor Start capacitors are usually non-polarized (they are electrolytic, but two in series reverse polarity) _______________________________________________ __________________________________________
Use 2 in parallel and reversed David. Are you going to be in GA before hurricane season? BTW, Id almost be interested in that Solar BA Carl _______________________________________________ ___________
I am glad this thread started. I have a Motor Start Capacitor ready to be installed at the base of my tower which is marked 130-156 MFD 330VAC . How can I tell if it is polarized or not? There are no
If the capacitor is rated for AC, (330VAC) then it shouldn't have a polarity marked, should it? Maybe we get confused because AC rated capacitors CAN be used on DC (with a voltage rating about 3x the
It will work. Motor Start Caps are designed for AC, hence unpolarized. What they won't work for is a continuous duty application (like power factor correction or in a splitphase motor), because they'
Nope.. if you use it on DC, though, you'll find it's a pretty lossy cap (at least motor start caps are). In that application (which is very price sensitive) they don't go to huge efforts to produce a
Correction, wire in series positive sides out. Ive used regular 80mF 450V in the past on HAM series rotators. _______________________________________________ _________________________________________
This is *supposed* to be a starting cap but I see a "-" next to one terminal - that made me nervous. Perhaps I am wrongly assuming that the "-" mark next to one terminal (nothing next to the other) i
The link you provided has a link to a PDF which calls the cap you have Non-Polarized. I think what you have will work fine. I got mine from the local HVAC guy. I will build a test cable tomorrow and
In the "old" days, a mark was often used on non-polarized caps to indicate the "outside" foil lead. 73 de Perry - K4PWO _______________________________________________ _______________________________
Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>
Date: Sat, 30 Jun 2007 11:36:06 +0200 (CEST)
I've even used straight electrolytics in rotator boxes. Because you aren't running it for very long, it doesn't get hot enough to be a problem. My T2X has had a 50 + 50uF 250 volt dual electrolytic w
I just go down to the local hardware store and get motor starting caps of the proper value. The AC voltage rating on them is usually so high that is a non issue. 73 Roger (K8RI) _____________________
Author: "J. Gordon Beattie, Jr., W2TTT" <w2ttt@att.net>
Date: Sun, 1 Jul 2007 06:40:00 -0000
OK, now the question is: what's the spec on the light bulbs used in Ham III and IV controllers and where do you get them? Waaaaaaay back when, I bought them at Radio Shack and many local places that
What does the manual say? If it's an old one, it probably says 50895-00. If it's a new one, it probably says #1819. I did a search for ham iv manual on yahoo.com and found one that said #1819. I did
Gordon, they are 1819s or 1820s. However, another past post suggested using 28 volt LEDs. I bought them and they work well. They fit directly in the original socket. I am also using them for the mete
Author: "J. Gordon Beattie, Jr., W2TTT" <w2ttt@att.net>
Date: Sun, 1 Jul 2007 14:40:45 -0000
Joe, Thanks! I will look around for them. Otherwise, I CAN WIRE an LED and a resistor together myself! Enjoy your travels! 73, Gordon, W2TTT --Original Message-- From: towertalk-bounces@contesting.co
Author: "J. Gordon Beattie, Jr., W2TTT" <w2ttt@att.net>
Date: Sun, 1 Jul 2007 15:19:03 -0000
Joe, Thanks! This is excellent! I have included your original email in this post, because attachments don't get through the list. Vy 73, Gordon, W2TTT "I switched to Led replacement bulbs quite a whi