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 Post subject: Batteries for PHILCO 027 Tester
PostPosted: Jun Wed 25, 2003 9:24 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1827
Location: Sanford, North Carolina
Hi Guy’s,<BR>Need some advice on batteries for a PHILCO 027 voltmeter, output meter, ohms meter. And AD+ DC voltage meter and here is the schematic for it (it’s on my site and not Alan’s)<BR> <IMG SRC="http://www.members.aol.com/oldpartsmanager/027.jpg"> <P>It’s in mint condition and no dents <BR>I have replaced the paper caps and checked the resistors (one micro mold wire resister was broken off) <BR>My problem is the batteries. The two 22 ½ V batteries were still in it. One is no problem, just one wire to the – side and one to the + side, but the other one is using a 3 volt clip and a 6 volt clip and of course one for + and one for 22 ½ v<BR>In the manual they talk about 6 v and 42v and 1 ½ v The 1 ½ of course a flash light battery.<BR>As I said the 22 ½ v is no problem and 45 v is no problem What do I do with the 3v and the 6v units ??<P><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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 Post subject: Batteries for PHILCO 027 Tester
PostPosted: Jun Wed 25, 2003 9:37 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 37187
Location: Livermore, CA
Hi Rick<P> Series wire 1 1/2 volt flashlight cells. At Dollar stores you can get 4 AA penlight for $1. It only takes 15 cells for 22 1/2 volts.<P>------------------<BR>Norm


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 Post subject: Batteries for PHILCO 027 Tester
PostPosted: Jun Wed 25, 2003 10:18 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1827
Location: Sanford, North Carolina
O - I have a 22 1/2v battery for the one,<BR>but the other 22 1/2v is taped at the 3v and 6v tap !and the 22 1/2 tap so there is 45v <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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 Post subject: Batteries for PHILCO 027 Tester
PostPosted: Jun Wed 25, 2003 11:42 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 26
Location: Carlin, Nevada USA
Rick, if there's room in the old battery pack area, the simplest way might be to build a little AC power supply and stuff it in there, since you already need AC for the filaments. Use a chopper-type supply with the input fed right off the AC, and a small, light transformer and smaller filters can be used with a higher switching frequency so as to not take up too much room. Other than that, I think you're pretty much stuck with a potload of AA or AAA cells like Norm suggested, maybe just go to Radio Shack and get a couple multicell holders and just solder a couple tap wires where you need 'em. Good luck.<P>Last minute thought--use a couple bigger flashlight batteries driving a chopper IC, there's one like an LM555, number escapes me at the moment, that's made to drive flashing highway lights and has enough current to supply what you need. Maybe build it into an old battery case so it looks authentic.<P>------------------<BR>


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 Post subject: Batteries for PHILCO 027 Tester
PostPosted: Jun Thu 26, 2003 2:00 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 1827
Location: Sanford, North Carolina
I just thought someone may have had a neat answer. I can build it with C batteries or use one of my PHILCO SOCKET power units <BR>Thanks anyway <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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