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	<title>Half-Byte &#187; record</title>
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		<title>Antique Sidewalk Find</title>
		<link>http://half-byte.com/2008/08/08/antique-sidewalk-find/</link>
		<comments>http://half-byte.com/2008/08/08/antique-sidewalk-find/#comments</comments>
		<pubDate>Sat, 09 Aug 2008 07:47:22 +0000</pubDate>
		<dc:creator>nibble</dc:creator>
				<category><![CDATA[News]]></category>
		<category><![CDATA[78rpm]]></category>
		<category><![CDATA[AM]]></category>
		<category><![CDATA[dumpster diving]]></category>
		<category><![CDATA[plate capacitor]]></category>
		<category><![CDATA[radio]]></category>
		<category><![CDATA[record]]></category>
		<category><![CDATA[stewart warner]]></category>
		<category><![CDATA[tuner]]></category>
		<category><![CDATA[vacuum tube]]></category>

		<guid isPermaLink="false">http://www.half-byte.com/2008/08/08/antique-sidewalk-find/</guid>
		<description><![CDATA[<p>On any given day, a short walk around San Francisco will present you with various clusters of unwanted material. Most of the time it is clothes or a mattress or books. Books are fun to look through, but they are rarely worth keeping. Most people have a bad taste in literature and the discarded [...]]]></description>
			<content:encoded><![CDATA[<p>On any given day, a short walk around San Francisco will present you with various clusters of unwanted material.  Most of the time it is clothes or a mattress or books.  Books are fun to look through, but they are rarely worth keeping.   Most people have a bad taste in literature and the discarded items are, of course, the worst of the lot.  You shouldn&#8217;t be surprised if you sift through three different piles of books and walk away with only one; one which you didn&#8217;t really want in the first place and will probably leave on the street when you dump your poor selection of literature.</p>
<p>However, a bunch of other junk is left on the walks of San Francisco.  Junk that is worthless to others can be valuable in the eyes of others.  For instance, a broken coffee brewer probably has a kick ass timer and liquid switch system that you could rig up so that your plants don&#8217;t dessicate during long vacations.  (Yeah, sure&#8230; you could probably water your cat with it too.)   I&#8217;ve seen cordless phones, TV&#8217;s, a mini counter top dish washer (a tad strange), clock radios, and other electronic gadgets.  But, last weekend I ran across a somewhat historical find that tugged enough on my curiosity to induce me to lug it up my four flights of stairs to my home.  It was an antique radio in a wooden housing.</p>
<p><a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_find.JPG" title="radio_find.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_find.thumbnail.JPG" alt="Suitcase?" align="left" vspace="10" hspace="10" /></a></p>
<p>This radio is an eye sore.  It is about the size of luggage people take on airplanes because it has those nifty wheels.  I actually thought it was an ugly brown suitcase the way it was propped up.  On closer inspection I saw that it had a couple of dials and a record player behind an obtrusive door.  The record player was what convinced me to take it.  I had a record I wanted to hear for a while and didn&#8217;t want to shell out money to do so.</p>
<p>With the box on the floor and the door closed, I couldn&#8217;t believe how some hayseed had this in his barnhouse for decades rocking out to Bob Wills thinking it was the best thing since sliced bread.  &#8220;Damn straight Maude!  We&#8217;re a part of the MODERN age.  We got tech-nolgy and we&#8217;re doin&#8217; jus fine.&#8221;</p>
<p><a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_open.JPG" title="radio_open.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_open.thumbnail.JPG" alt="Record Door" align="right" vspace="10" hspace="10" /></a>Opening the door I saw the moldy turn table and took special notice how the felt protective layer would disintegrate under the most tender touch.  Those little fragments were fond of clinging to vinyl.  So, it kind of made the whole &#8216;protection&#8217; thing pointless.  After more examination I peeked in the back vent and lo and behold were a few columns of vacuum tubes standing there like weary monoliths of a forgotten age.   When I plugged in the radio they glowed like a soft warm ember and emitted that dry smell I remember as a child when I played with my father&#8217;s old receiver that also had an array of vacuum tubes.</p>
<p><a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_inside.JPG" title="radio_inside.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_inside.thumbnail.JPG" alt="Peeking Inside" align="left" vspace="10" hspace="10" /></a>The power is turned on by turning the volume knob and it was beautiful.  It had such a warm analog slow power up that it made me curl up inside my head with a wonderful grin of contentment.  Rotating the tuner produced a fuzzy calming noise that was pleasant all on its own.  This was unlike scanning the frequencies on today&#8217;s radios, which produces such a sharp screeching that it makes you want to grind your teeth.  Amazingly this thing worked.  I rolled around the dial trying to find a hip station, &#8220;Wow, there&#8217;s a lot of talk on the radio today.&#8221;  It took me a little while to realize the radio only got AM broadcasts.</p>
<p>The center knob was missing.  It was used to change the sound from treble to bass, as well as to switch to amplify the record player.  After fumbling with some pliers I gave the turn table a whirl.  My record was a Shins single I got free for some sort of promotion or CD release.  It was a 45 rpm disc with one of those wide holes in the center.  The record player only had the ~5 millimeter pin, so I rigged up some cardboard (that was handily within an arms length) and kept the record center.  The turntable still worked and spun the disc, so I grabbed the needle and carefully dropped it on the warped surface (By the way, don&#8217;t store records at a 45 degree, boys and girls).</p>
<p><a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_patent.JPG" title="radio_patent.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_patent.thumbnail.JPG" alt="Patents" align="left" vspace="10" hspace="10" /></a>&#8220;Damn.  It works!&#8221; I thought.  But it sounded funny.  Everything was high pitched and the beat was too fast.  As far as I knew, record players ran at 45 rpm or at 33 rpm, so I couldn&#8217;t figure out why I was hearing the Chipmunks.  It turns out that this thing was old.  It ran at 78 rpm.</p>
<p>Now that the diagnostic testing was completed and the <strike>stereo</strike> monophone worked, I began examining it.  The vacuum tubes were warming up and the heat belched out the vents in the back.  The smell of that fume was so nostalgic.  I took a closer look inside and noticed there was a plate of glass that had fallen into the back.  It turns out that it was the front plate for the tuner needle. Once I saw that, I became determined to restore it and see how it looked.</p>
<p><a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_wrench.JPG" title="radio_wrench.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_wrench.thumbnail.JPG" alt="Wrench-ing" align="right" vspace="10" hspace="10" /></a>Lifting up the box, there was an old tattered paper plastered to the wood with a surprising number of patents.  I was impressed, but a little disheartened since I couldn&#8217;t find a date.  I still don&#8217;t know how old this thing is.  Conveniently on the bottom there were four nuts for easy access.  After a few twists of a wrench I was able to gut the thing.  &#8220;Wow.  Those old fogies knew how to design something for later maintenance.&#8221;</p>
<p><a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_gutted.JPG" title="radio_gutted.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_gutted.thumbnail.JPG" alt="Gutted" align="left" vspace="10" hspace="10" /></a>Looking at the core tuner and sound components I felt like I was on some archaeological dig.  On the side there were some scribblings for which tube goes where.   Someone obviously serviced this machine and it made me feel giddy that someone would have enough appreciation for something they would spend the time to get it repaired.  Now days, people buy something new when something breaks.  However, in this day and age, we don&#8217;t have much choice given the lack of modular (non-PC) based devices that are built from cheap circuit boards.  But still, that lack of affection is disturbing.</p>
<p>As usual, I began to take everything apart even though I was only intending to remount the glass.  I took out the vacuum tubes and looked through one that was smoky and was probably burned out.  I also discovered this neat tuning capacitor that looked like a heat sink because it was built from plates and used the air as an insulator.</p>
<p><center><a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_tube.JPG" title="radio_tube.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_tube.thumbnail.JPG" alt="Vacuum Tube" align="middle" vspace="10" hspace="10" /></a> <a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_platecapacitor.JPG" title="radio_platecapacitor.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_platecapacitor.thumbnail.JPG" alt="Plate Capacitor" align="middle" vspace="10" hspace="10" /></a> <a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_blown.JPG" title="radio_blown.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_blown.thumbnail.JPG" alt="Blown Tube" align="middle" vspace="10" hspace="10" /></a></center>After I had my fill of caressing the old hardware, I promptly mounted the glass and sealed up the box.  When I turned on the radio I was pleasantly surprised with the way the light glowed from the lettering around the AM frequency numbers.  The words Stewart Warner blazoned with pride.  Too bad I haven&#8217;t heard of that brand. <center><a href="http://www.half-byte.com/wp-content/uploads/2008/08/radio_glass.JPG" title="radio_glass.JPG"><img src="http://www.half-byte.com/wp-content/uploads/2008/08/radio_glass.thumbnail.JPG" alt="Glowing Glass" align="middle" vspace="10" hspace="10" /></a></center></p>
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