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<title>Electronics forum - dslreports.com community</title>
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<description>Electronics forum current topics</description>
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<copyright>Copyright 2007, dslreports.com</copyright>
<pubDate>Wed, 09 Dec 2009 18:41:00 EDT</pubDate>
<lastBuildDate>Wed, 09 Dec 2009 18:41:00 EDT</lastBuildDate>

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<item>
<title>More Hammond organ work</title>
<link>http://www.dslreports.com/forum/remark,23410073</link>
<description><![CDATA[I have two things to fix.. well 3..

one being another broken key and a wire snapped from a drawbar. And I can't figure out (pretty sure  it's the power amp) where the power cable runs into be plugged into when you turn on the organ it makes a buzzing sound.. this just started up this year.. 

The model is a A100.. I used to be apart of a discussion site but something happened when I switched my ISP over.

I can say the organ is tube driven but what would be causing it to buzz? And no it does not come out from the speakers I'm very sure it's from the amp it's self.

Also I need to solider the wire back on the drawbar.. Not sure what type they used back in the 60's but this is about the 4th time I've had to do this.. 
--
It's NOT Ni-kon It's NE-KON!




]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23410073</guid>
<pubDate>2009-11-29 14:37:51</pubDate>
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<item>
<title>Is this cap bad?</title>
<link>http://www.dslreports.com/forum/remark,23447628</link>
<description><![CDATA[This pic is from a Carver TFM-45 amp I'm sending out for a general going over.
The amp seems to be working ok but it's almost 20 years old so I know it needs the elec caps replaced and probably some other stuff.
But I was curious about the cap on the right with the little plug sticking out. Does that mean it's bad or on it's way out?

Thanks,
John]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23447628</guid>
<pubDate>2009-12-06 18:50:34</pubDate>
</item>

<item>
<title>Rebuilding Old Electrolyric Can-Type Capacitors</title>
<link>http://www.dslreports.com/forum/remark,23463903</link>
<description><![CDATA[This is a new post for those that haven't been following Subaru's Hammond Organ thread.
Here's a collection of links I've found over the years about replacing the insides of old can-type ("Twist-Lock" or similar) electrolytic capacitors commonly used as filters in vintage and tube equipment. You can get *some* values of can caps newly manufactured, but they tend to be expensive. And it's usually pretty hard to find an exact replacement with number of sections and ratings you need for your project. Sometimes you can find NOS ("New-Old-Stock") replacements, but if they were manufactured many years ago, they'll require (or should be) 'reforming' before you use them.
And please don't pull a similar capacitor out of a junk chassis to use. Chances are it's just as old as the one you're replacing, and while it might be "good" *now*, do you really want to go through all that labor _twice_?
http://www.antiqueradio.org/recap.htm
http://www.nmr.mgh.harvard.edu/~reese/electrolytics/#rebuild
http://www.earlytelevision.org/electrolytic.html
http://www.boatanchors.org/filtercap.htm
http://repairbench.com/caprebuild.aspx
http://blog.wingedvictorydesign.com/2009/03/17/rebuilding-the-power-supply-in-a-mcintosh-mac1700/3/
--
One man's Magic is another man's Engineering.]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23463903</guid>
<pubDate>2009-12-09 15:50:56</pubDate>
</item>

<item>
<title>HDMI optical</title>
<link>http://www.dslreports.com/forum/remark,23462682</link>
<description><![CDATA[okay so i bought the samsung un55b8500 (insert boos or applause here) and as I am waiting for it i have a setup question. I have an old onkyo receiver with 2 optical out and no hdmi. So the PS3 is going hdmi to the tv, as well as the cable box. Can i go optical out of the TV to the receiver to get the digital audio for both the ps3 and cable or should i just go optical to optical on the cable and ps3 to the receiver?]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23462682</guid>
<pubDate>2009-12-09 12:57:38</pubDate>
</item>

<item>
<title>component to VGA</title>
<link>http://www.dslreports.com/forum/remark,23152854</link>
<description><![CDATA[Ok hopefully this is the right spot to ask...if not, please move.

I just bought myself a new 24" monitor. I was tired of my 17" el-cheapo HP.

My HP has a VGA input - nothing else.

Unfortunately I do not have any need for a monitor with a VGA input. I could, however, use it in the bedroom and get rid of a older CRT. The issue is that my cable box does not have a VGA out - only DVI, component, composite, and HDMI. My cable box is also across the house in the living room. I have plenty of good RG6 and could easily run 3 lines to the bedroom to support component video.

As I understand  - the VGA to component cables they sell are RGB and not YPbPr. Am I correct on this assumption? 

My one larger LCD DOES support a YPbPr input on VGA BUT it has a separate input for it (IE: Has a VGA OR a Component 2 input, one treats it as RGB one treats it as YPbPr). Again - am I correct in my assumption?

If I am correct - then I need a device which will convert YpbPr to RGB. Can anyone recommend me a converter? 

This is honestly only worth about $40 to me. Not saying the hardware is cheap or it should be - but for me to justify using it for this purpose I would need to find a cheap converter. If I'm not going to find one for around that price I'm also fine with that.]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23152854</guid>
<pubDate>2009-10-08 15:40:28</pubDate>
</item>

<item>
<title>Simple tester checks Christmas-tree lights</title>
<link>http://www.dslreports.com/forum/remark,23403621</link>
<description><![CDATA[From EDN.

http://www.edn.com/article/CA46423.html?nid=4736&rid=4513541

Why is it that you always test 48 bulbs before you find the bad one in a 50-light string? The simple circuit in Figure 1 allows you to divide and conquer, greatly reducing the time it takes to find the bad bulb. The circuit uses a pair of NE2 neon bulbs with current-limiting resistors. You can use a pair of Radio Shack 272-1100 bulb-resistor sets. It's convenient to house the tester in a clear piece of plastic tubing, with the probe tip emerging from one end and a light-duty power cord emerging from the other end. You place the bulbs in the tube such that one is close to the probe tip and the other is near the power cord, so it's easy to remember which bulb lit last. The probe tip connects to common point between the neon bulbs. It consists of thin spring wire with all but the last &frac14; in. insulated. You use the bare tip to make contact with the crimp connectors in the base of the bulbs.

Wayne
--
If you cannot fix it with a buttset and some beanies you're not a technician.]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23403621</guid>
<pubDate>2009-11-27 17:09:49</pubDate>
</item>

<item>
<title>Where can i get Internal fans for my plasma</title>
<link>http://www.dslreports.com/forum/remark,23453338</link>
<description><![CDATA[I have a SPN4235 Samsung which had a black line down the middle which went away after a move a while back and i think it was due to the ribbon cable heating up and seating better, but after about 4 months it has started to come back a bit due to it getting too hot, used to have a fan behind it but that got left behind in the move.

I have a basic 3 prong Computer fan that will not fit in the mainboard on the Plasma because its a little too big.

I have a few pictures but they are really fuzzy.

just want to know where i could buy some fans so i dont have to have a fan behind the TV all the time.]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23453338</guid>
<pubDate>2009-12-07 20:16:49</pubDate>
</item>

<item>
<title>Setting up a work bench.</title>
<link>http://www.dslreports.com/forum/remark,23448012</link>
<description><![CDATA[I have a degree in Electronics, and have held a couple of jobs in it. Currently unemployed, and money is a little tight.

That said, I am curious as to what equipment would be good to get, that is low cost. 
I have a no name multimeter some where in the house.
I know I'll need a visor or some type of lens for surface mount stuff, a soldering iron.
Maybe a "soft" scope with usb probes [The one I used at work was slow triggering, so I know a real oscope is better then a soft scope, but it also costs more].

I wouldn't mind diving into TV/consumer electronics. Back when I was in college I "worked" at a TV repair shop for 4 months, so know the dangers of the flyback transformer and the CRT. I am also aware that much of TV repair today is board swaping, then sending the board to a depot to get refurbed if it can be.

Wouldn't mind getting into RF stuff. My last job I was trouble shooting/repairing surface mount AMR [automated Meter readers [gas, electric, water].

Thanks.
--
I want Obama money. "wheres it comming from?" I dunno, his stash. I don't care, I just want obama money. Shows the lack of education and the greed of people. Hand outs from the government comes from your pay check and wallet. Think about it.]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23448012</guid>
<pubDate>2009-12-06 20:15:54</pubDate>
</item>

<item>
<title>[120V, 60Hz] 110V Device</title>
<link>http://www.dslreports.com/forum/remark,23412013</link>
<description><![CDATA[Just as the title suggests...

I have a couple of two way Motorola 2way radios coming over from China that use a 110V (don't know if it's 50Hz or 60Hz) charger. An unusual voltage, but China appears to use it and some areas of North America. Would I need any special adapters? Or is the power difference negligible enough to be able to safely plug the device directly into a 120V outlet?]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23412013</guid>
<pubDate>2009-11-29 23:40:28</pubDate>
</item>

<item>
<title>Crystal Supplier</title>
<link>http://www.dslreports.com/forum/remark,23412522</link>
<description><![CDATA[Anyone know where I can  buy individual crystals, specifically ECS-49-18-10X or equivalent? :huh:]]></description>
<guid isPermaLink="true">http://www.dslreports.com/forum/remark,23412522</guid>
<pubDate>2009-11-30 03:44:35</pubDate>
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