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THE PHILCO RESTORER
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Post subject: 39-116 volume control Posted: Apr Thu 24, 2003 5:47 pm |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 1827 Location: Sanford, North Carolina
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Hi Guys, Have a PHILCO 39-116 and that’s the one with the remote control. The volume control does not work and it’s AC motor driven just like my 39-55 with remote and the motor only shifts and will not turn forward or reverse and sure enough the capacitor that is hooked to it is bad just like the 39-55 was. The 39-55 I got a capacitor at the motor shop , but it was expensive. The capacitor is called an electrolytic in the schematic ??? I don’t know why, but it is. It’s a 30 MFD 30 Volts AC capacitor, so I took 2 – 47 MFD’s 450 volts DC and put them back to back and the motors works OK , But what is your opinion , will it last and run OK<P>------------------<BR>Rick Dippolito<BR>THE PHILCO RESTORER at<BR> <A HREF="http://hometown.aol.com/philcorestorer/myhomepage/index.html" TARGET=_blank>http://hometown.aol.com/philcorestorer/myhomepage/index.html</A>
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Chuck Schwark
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Post subject: 39-116 volume control Posted: Apr Thu 24, 2003 6:01 pm |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 5869 Location: Evanston, IL
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It not electrolytic, Philco mistakenly listed it in with the electrolytics. It's a non-polar type. Same electrolite construction as the similar electrolytics, hence the confusion. Any non-polar 30uF cap at 30 volts or greater should be fine.<P>Your back-to-back 47's is in effect a non-polar 23.5 uF cap. Should be ok. A larger uF value will provide more torque. Try a back-to-back pair of 68uf caps to get closer to the original value (which had a large tolerance range anyway).<P>------------------<BR>Chuck Schwark<BR>The Philco Repair Bench at<BR> <BR> <A HREF="http://www.philcorepairbench.com" TARGET=_blank>http://www.philcorepairbench.com</A>
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THE PHILCO RESTORER
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Post subject: 39-116 volume control Posted: Apr Thu 24, 2003 7:08 pm |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 1827 Location: Sanford, North Carolina
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Thanks Chuck, I did notice that it was a little slow. Just try and buy a 30 uf 30 volt cap AC. Even if it was 50 uf and 120 V AC you still can’t do it. The 39-55 had to buy a 30 uf 475 volt ac, paid $20.00 for it !!<BR>The trick is the DC vs. AC I did notice that 30 or 40 volts AC was on par with about360 or so volts DC I’ll try a couple of 68 uf caps <BR><P>------------------<BR>Rick Dippolito<BR>THE PHILCO RESTORER at<BR> <A HREF="http://hometown.aol.com/philcorestorer/myhomepage/index.html" TARGET=_blank>http://hometown.aol.com/philcorestorer/myhomepage/index.html</A>
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Don Black
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Post subject: 39-116 volume control Posted: Apr Thu 24, 2003 10:59 pm |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 3162 Location: Cockatoo, Victoria, Australia
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You should be able to get non-polarised (bi-polar) electolytics in those values quite cheaply (about 50 cents). They're sold for crossover capacitors in speaker systems and should be available in 50 volt and 100 volt ratings.<BR>Don Black. <P>------------------<BR>
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THE PHILCO RESTORER
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Post subject: 39-116 volume control Posted: Apr Fri 25, 2003 1:22 am |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 1827 Location: Sanford, North Carolina
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Were Don, you mean in AC voltage ?? Explain to me the difference between Regular electrolytic and non- polarized (bi-Polar) electrolytic and the voltage difference <P>------------------<BR>Rick Dippolito<BR>THE PHILCO RESTORER at<BR> <A HREF="http://hometown.aol.com/philcorestorer/myhomepage/index.html" TARGET=_blank>http://hometown.aol.com/philcorestorer/myhomepage/index.html</A>
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