<?xml version="1.0" encoding="UTF-8"?>
<procedure locale="en" xmlns="http://www.ifixit.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ifixit.com/api/0.1/doc/guide.xsd">
   <title>Sony TR-63 Transistor Radio Teardown</title>
   <summary />
   <image>http://d3nevzfk7ii3be.cloudfront.net/igi/4Q2iEXBEfFVCHcpa</image>
   <author id="105989">bac</author>
   <time_required />
   <difficulty>Moderate</difficulty>
   <categories>
      <category>Sony TR-63 Transistor Radio</category>
   </categories>
   <introduction><p>This teardown comes with a bit of a history lesson :)</p>

<p>Here's a <strong>Sony TR-63 transistor radio</strong> - I forgot I had one until reminded of it by the ifixit Sony teardown promotion. If we're going to tear down Sony consumer gadgets, why not start with one of the earliest?</p>

<p>The TR-63 was introduced in 1957 - it was the first &quot;pocket-sized&quot; transistor radio ever made and the first Sony-branded product exported to North America, by the then-named Tokyo Tsushin Kogyo company (Tokyo Telecommuncations Engineering Corporation). It became a huge commercial success, over 100,000 units were sold.</p>

<p>It seems &quot;pocket-sized&quot; was a bit of a marketing gimmick at the time - although smaller than any competing product, the TR-63 was a bit too big to fit into a standard shirt pocket. So story has it that company salesmen wore custom-made shirts with slightly bigger pockets to show off the TR-63's small size. But unlike desktop radios of the day which were promoted under the idea of &quot;a radio in every home&quot;, the TR-63 was uniquely marketed as something each person could own and carry with them. A foreshadowing of the Walkman and iPod, perhaps?</p>

<p>The TR-63 contains a whopping <ins>6 transistors</ins>. By comparison, the Cell processor chip in the PS3 contains two to three hundred <em>million</em> transistors. That's an indication of the progress made in the electronics industry in the past 50 years.</p>

<p>In Japan the TR-63 sold for 13,800 yen, and the original export price was U$39.95. It was available in 4 colours (yellow, red, green and black).</p>

<p>Follow along with this teardown to get a look into an important piece of consumer electronics history.</p></introduction>
   <introduction_rendered><p>This teardown comes with a bit of a history lesson :)</p>

<p>Here's a <strong>Sony TR-63 transistor radio</strong> - I forgot I had one until reminded of it by the ifixit Sony teardown promotion. If we're going to tear down Sony consumer gadgets, why not start with one of the earliest?</p>

<p>The TR-63 was introduced in 1957 - it was the first &quot;pocket-sized&quot; transistor radio ever made and the first Sony-branded product exported to North America, by the then-named Tokyo Tsushin Kogyo company (Tokyo Telecommuncations Engineering Corporation). It became a huge commercial success, over 100,000 units were sold.</p>

<p>It seems &quot;pocket-sized&quot; was a bit of a marketing gimmick at the time - although smaller than any competing product, the TR-63 was a bit too big to fit into a standard shirt pocket. So story has it that company salesmen wore custom-made shirts with slightly bigger pockets to show off the TR-63's small size. But unlike desktop radios of the day which were promoted under the idea of &quot;a radio in every home&quot;, the TR-63 was uniquely marketed as something each person could own and carry with them. A foreshadowing of the Walkman and iPod, perhaps?</p>

<p>The TR-63 contains a whopping <ins>6 transistors</ins>. By comparison, the Cell processor chip in the PS3 contains two to three hundred <em>million</em> transistors. That's an indication of the progress made in the electronics industry in the past 50 years.</p>

<p>In Japan the TR-63 sold for 13,800 yen, and the original export price was U$39.95. It was available in 4 colours (yellow, red, green and black).</p>

<p>Follow along with this teardown to get a look into an important piece of consumer electronics history.</p><div class="tools"><strong>Tools</strong><ul><li><a href="http://www.ifixit.com/Tools/5mm-Nut-Driver/IF145-009">5mm Nut Driver</a></li><li><a href="http://www.ifixit.com/Tools/6-in-1-Screwdriver/IF145-067">Flathead Screwdriver</a></li><li><a href="http://www.ifixit.com/Tools/Phillips-1-Screwdriver/IF145-021">Phillips #1 Screwdriver</a></li></ul></div></introduction_rendered>
   <tools>
      <tool notes="" thumbnail="http://da2lh5cs8ikqj.cloudfront.net/cart-products/N6VltKbLONSa1sBO.mini" url="http://www.ifixit.com/Tools/5mm-Nut-Driver/IF145-009">5mm Nut Driver</tool>
      <tool notes="" thumbnail="" url="http://www.ifixit.com/Tools/6-in-1-Screwdriver/IF145-067">Flathead Screwdriver</tool>
      <tool notes="" thumbnail="http://da2lh5cs8ikqj.cloudfront.net/cart-products/xsJ6bB4TBOUJAfNn.mini" url="http://www.ifixit.com/Tools/Phillips-1-Screwdriver/IF145-021">Phillips #1 Screwdriver</tool>
   </tools>
   <parts />
   <flags>
      <flag id="GUIDE_STARRED" title="Featured Guide">This guide has been found to be exceptionally cool by the iFixit staff.</flag>
      <flag id="GUIDE_USER_CONTRIBUTED" title="User-Contributed Guide">An awesome member of our community made this guide. It is not managed by iFixit staff.</flag>
   </flags>
   <documents />
   <prerequisites />
   <steps>
      <step number="0" title="">
         <lines>
            <line bullet="black" level="0">A bit more trivia...
               <text_raw>A bit more trivia...</text_raw>
            </line>
            <line bullet="icon_note" level="0">The huge success of the TR-63 helped &lt;strong&gt;Tokyo Tsushin Kogyo&lt;/strong&gt; (aka &amp;quot;Totsuko&amp;quot;) decide to change its company name to &lt;strong&gt;Sony Corporation&lt;/strong&gt; in 1958. For the few years prior, &amp;quot;Sony&amp;quot; had simply been a brand name attached to the company&apos;s fledgling line of transistor radios. (Check out the retro Sony logo - I like it!)
               <text_raw>The huge success of the TR-63 helped &apos;&apos;&apos;Tokyo Tsushin Kogyo&apos;&apos;&apos; (aka &quot;Totsuko&quot;) decide to change its company name to &apos;&apos;&apos;Sony Corporation&apos;&apos;&apos; in 1958. For the few years prior, &quot;Sony&quot; had simply been a brand name attached to the company&apos;s fledgling line of transistor radios. (Check out the retro Sony logo - I like it!)</text_raw>
            </line>
            <line bullet="black" level="0">At the time, the company&apos;s co-founders felt the Japanese name was too hard to pronounce and remember by foreigners. They decided the name change would help them expand and become well known worldwide. And as they say, the rest is history.
               <text_raw>At the time, the company&apos;s co-founders felt the Japanese name was too hard to pronounce and remember by foreigners. They decided the name change would help them expand and become well known worldwide. And as they say, the rest is history.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/4Q2iEXBEfFVCHcpa</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/2FfiSAaHxwNvPYnx</image>
            <image orderby="3">http://d3nevzfk7ii3be.cloudfront.net/igi/irMrlaKGkKYEiMx2</image>
         </images>
      </step>
      <step number="1" title="">
         <lines>
            <line bullet="black" level="0">OK, enough babbling, let&apos;s get to work! This is the &lt;em&gt;real&lt;/em&gt; Step 1...
               <text_raw>OK, enough babbling, let&apos;s get to work! This is the &apos;&apos;real&apos;&apos; Step 1...</text_raw>
            </line>
            <line bullet="black" level="0">On the top of the radio you&apos;ll notice the earphone jack.
               <text_raw>On the top of the radio you&apos;ll notice the earphone jack.</text_raw>
            </line>
            <line bullet="black" level="0">Unscrew and remove the metal jack collar using a flathead screwdriver or other flat tool.
               <text_raw>Unscrew and remove the metal jack collar using a flathead screwdriver or other flat tool.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/Cjc4LDdVdVnOJhMp</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/ry6DPlmjIfnluNZE</image>
         </images>
      </step>
      <step number="2" title="">
         <lines>
            <line bullet="black" level="0">Unscrew the large decorative screw in the center of the tuning dial by hand...
               <text_raw>Unscrew the large decorative screw in the center of the tuning dial by hand...</text_raw>
            </line>
            <line bullet="black" level="0">...and then you can remove the screw and lift off the tuning dial.
               <text_raw>...and then you can remove the screw and lift off the tuning dial.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/2QpIyvKvAIHRxCLF</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/632C2LhWSPIUYjce</image>
         </images>
      </step>
      <step number="3" title="">
         <lines>
            <line bullet="black" level="0">Turn the radio over with its back facing you.
               <text_raw>Turn the radio over with its back facing you.</text_raw>
            </line>
            <line bullet="black" level="0">It&apos;s safe to say the warranty on this radio long ago expired -- so we&apos;re going to fearlessly open it up in the following steps...
               <text_raw>It&apos;s safe to say the warranty on this radio long ago expired -- so we&apos;re going to fearlessly open it up in the following steps...</text_raw>
            </line>
            <line bullet="icon_note" level="0">In these photos, the gridlines on the green background are 1 cm square, so you can get an idea of the size of the radio.
               <text_raw>In these photos, the gridlines on the green background are 1 cm square, so you can get an idea of the size of the radio.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/ErWi2QYmCEiJLRB1</image>
         </images>
      </step>
      <step number="4" title="">
         <lines>
            <line bullet="black" level="0">Carefully pry open the case from the bottom edge.
               <text_raw>Carefully pry open the case from the bottom edge.</text_raw>
            </line>
            <line bullet="black" level="0">Boy, this is a lot easier to open than an iPod! (&lt;a href=&quot;http://www.ifixit.com/Tools#0-Spudgers&quot;&gt;Spudger&lt;/a&gt; not required.)
               <text_raw>Boy, this is a lot easier to open than an iPod! ([http://www.ifixit.com/Tools#0-Spudgers|Spudger] not required.)</text_raw>
            </line>
            <line bullet="black" level="0">On the inside of the back cover, you&apos;ll find the product label. Notice the official company name, &lt;strong&gt;Tokyo Tsushin Kyogo Ltd&lt;/strong&gt;.  I&apos;ve seen photos of later versions of the TR-63 which say &amp;quot;Sony Corporation&amp;quot; there instead.
               <text_raw>On the inside of the back cover, you&apos;ll find the product label. Notice the official company name, &apos;&apos;&apos;Tokyo Tsushin Kyogo Ltd&apos;&apos;&apos;.  I&apos;ve seen photos of later versions of the TR-63 which say &quot;Sony Corporation&quot; there instead.</text_raw>
            </line>
            <line bullet="black" level="0">I&apos;m not sure what happened to the corner of the label - perhaps after all these years in the back of my closet it was likely eaten by a &lt;a href=&quot;http://en.wikipedia.org/wiki/Grue_(monster)&quot;&gt;grue&lt;/a&gt;?
               <text_raw>I&apos;m not sure what happened to the corner of the label - perhaps after all these years in the back of my closet it was likely eaten by a [http://en.wikipedia.org/wiki/Grue_(monster)|grue]?</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/JX2FMecRKamnIKs2</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/1XQDylRTyQEIoVvx</image>
         </images>
      </step>
      <step number="5" title="">
         <lines>
            <line bullet="black" level="0">Here&apos;s the circuit board inside, in all its glory.
               <text_raw>Here&apos;s the circuit board inside, in all its glory.</text_raw>
            </line>
            <line bullet="black" level="0">This radio takes a user replaceable battery! (Standard 9V transistor battery.)
               <text_raw>This radio takes a user replaceable battery! (Standard 9V transistor battery.)</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/eKvfiLQXfdYlwY2q</image>
         </images>
      </step>
      <step number="6" title="">
         <lines>
            <line bullet="yellow" level="0">Using a Phillips #1 screwdriver, remove the lone screw in the center holding the circuit board in place
               <text_raw>Using a Phillips #1 screwdriver, remove the lone screw in the center holding the circuit board in place</text_raw>
            </line>
            <line bullet="black" level="0">Fortunately the Torx screw wasn&apos;t yet invented when they built this radio...
               <text_raw>Fortunately the Torx screw wasn&apos;t yet invented when they built this radio...</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/ClcbvXrOMKKZrtWI</image>
         </images>
      </step>
      <step number="7" title="">
         <lines>
            <line bullet="black" level="0">Now gently lift out the circuit board.
               <text_raw>Now gently lift out the circuit board.</text_raw>
            </line>
            <line bullet="black" level="0">You may need to wiggle it a bit - you have to get the volume dial to clear its opening before the circuit board will come out of the case.
               <text_raw>You may need to wiggle it a bit - you have to get the volume dial to clear its opening before the circuit board will come out of the case.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/kTvFd13G1FUukJ5a</image>
         </images>
      </step>
      <step number="8" title="">
         <lines>
            <line bullet="icon_caution" level="0">Set the circuit board beside the case, being careful not to damage the thin wires going to the earphone jack and speaker.
               <text_raw>Set the circuit board beside the case, being careful not to damage the thin wires going to the earphone jack and speaker.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/y6Sf2I2aPsLCmjpC</image>
         </images>
      </step>
      <step number="9" title="">
         <lines>
            <line bullet="black" level="0">The earphone jack is composed of a few strips of metal. It also acts as a switch - when the earphone is inserted, contacts are opened to disconnect the built-in speaker.
               <text_raw>The earphone jack is composed of a few strips of metal. It also acts as a switch - when the earphone is inserted, contacts are opened to disconnect the built-in speaker.</text_raw>
            </line>
            <line bullet="black" level="0">Carefully lift out the earphone jack assembly and set it aside from the case, still connected to the speaker.
               <text_raw>Carefully lift out the earphone jack assembly and set it aside from the case, still connected to the speaker.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/WEIRb1u6yLwRuZyC</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/El62SKkZmRAV3U3R</image>
            <image orderby="3">http://d3nevzfk7ii3be.cloudfront.net/igi/RmRicYfygBofvgsd</image>
         </images>
      </step>
      <step number="10" title="">
         <lines>
            <line bullet="black" level="0">The speaker is fastened to the case with small clips held down by two nuts.
               <text_raw>The speaker is fastened to the case with small clips held down by two nuts.</text_raw>
            </line>
            <line bullet="red" level="0">Use a 5mm nutdriver to loosen the nuts.
               <text_raw>Use a 5mm nutdriver to loosen the nuts.</text_raw>
            </line>
            <line bullet="icon_note" level="0">You may find the space a bit tight to fit a nutdriver in close to the case edge. If so, you can try using needlenose pliers instead to loosen the nuts.
               <text_raw>You may find the space a bit tight to fit a nutdriver in close to the case edge. If so, you can try using needlenose pliers instead to loosen the nuts.</text_raw>
            </line>
            <line bullet="black" level="0">Once the nuts are loosened, you can separate the speaker from the case.
               <text_raw>Once the nuts are loosened, you can separate the speaker from the case.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/1AJqbhqnYMOAMxCK</image>
         </images>
      </step>
      <step number="11" title="">
         <lines>
            <line bullet="black" level="0">Here&apos;s the circuit board, earphone jack and speaker after they&apos;ve been removed from the case.
               <text_raw>Here&apos;s the circuit board, earphone jack and speaker after they&apos;ve been removed from the case.</text_raw>
            </line>
            <line bullet="black" level="0">Notice that there are components mounted on both sides of the circuit board. Perhaps the resistors and capacitors on the solder-side were a last minute design change?
               <text_raw>Notice that there are components mounted on both sides of the circuit board. Perhaps the resistors and capacitors on the solder-side were a last minute design change?</text_raw>
            </line>
            <line bullet="black" level="0">On the other hand, the circuit board is so tightly crammed on the component side there probably wasn&apos;t enough room for everything on one side.
               <text_raw>On the other hand, the circuit board is so tightly crammed on the component side there probably wasn&apos;t enough room for everything on one side.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/5LAdQZrhXqq4hKF3</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/BHC3F5C6TqsYW2BB</image>
         </images>
      </step>
      <step number="12" title="">
         <lines>
            <line bullet="black" level="0">Here&apos;s a closeup of the solder-side of the circuit board.
               <text_raw>Here&apos;s a closeup of the solder-side of the circuit board.</text_raw>
            </line>
            <line bullet="black" level="0">Unlike modern electronics, you can tell this radio was assembled and soldered by hand.
               <text_raw>Unlike modern electronics, you can tell this radio was assembled and soldered by hand.</text_raw>
            </line>
            <line bullet="black" level="0">I wonder what mark my old high school electronics teacher would have given to this work? :)
               <text_raw>I wonder what mark my old high school electronics teacher would have given to this work? :)</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/mw6wBpSxNjTRUfGO</image>
         </images>
      </step>
      <step number="13" title="">
         <lines>
            <line bullet="black" level="0">Here&apos;s the component side of the circuit board.
               <text_raw>Here&apos;s the component side of the circuit board.</text_raw>
            </line>
            <line bullet="black" level="0">You can see the various components in these views of the circuit board. Remember, these are all discrete components here -- no integrated circuits! But state of the art at the time, a lot of circuitry crammed into a small space.
               <text_raw>You can see the various components in these views of the circuit board. Remember, these are all discrete components here -- no integrated circuits! But state of the art at the time, a lot of circuitry crammed into a small space.</text_raw>
            </line>
            <line bullet="black" level="0">Six of the gray components with an oval cross-section (marked or stamped with &amp;quot;Sony&amp;quot;) are transistors.
               <text_raw>Six of the gray components with an oval cross-section (marked or stamped with &quot;Sony&quot;) are transistors.</text_raw>
            </line>
            <line bullet="black" level="0">The 7th similar looking gray component is a varistor. It&apos;s the one at the front left of the circuit board in the 3rd photo in this series.
               <text_raw>The 7th similar looking gray component is a varistor. It&apos;s the one at the front left of the circuit board in the 3rd photo in this series.</text_raw>
            </line>
            <line bullet="black" level="0">Say, do they still teach the resistor colour code in schools these days? :)
               <text_raw>Say, do they still teach the resistor colour code in schools these days? :)</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/I1ZbQyPTrx1AiLnR</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/xjnL4ALBAAFPRHSS</image>
            <image orderby="3">http://d3nevzfk7ii3be.cloudfront.net/igi/ZApj3WWK1qpZA4aN</image>
         </images>
      </step>
      <step number="14" title="">
         <lines>
            <line bullet="black" level="0">Here&apos;s a closeup of the volume dial / on-off switch
               <text_raw>Here&apos;s a closeup of the volume dial / on-off switch</text_raw>
            </line>
            <line bullet="green" level="0">An eccentric cam in the middle of the dial opens and closes a metal contact (marked with green square) to disconnect/connect the power to the circuits.
               <text_raw>An eccentric cam in the middle of the dial opens and closes a metal contact (marked with green square) to disconnect/connect the power to the circuits.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/bFF3XGwFJxkQmRe2</image>
         </images>
      </step>
      <step number="15" title="">
         <lines>
            <line bullet="black" level="0">A few more miscellaneous views of the components, while we&apos;re at it...
               <text_raw>A few more miscellaneous views of the components, while we&apos;re at it...</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/rYlFAEckJDMKY4LS</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/2XMqidpALqQUyUTZ</image>
            <image orderby="3">http://d3nevzfk7ii3be.cloudfront.net/igi/n3QQh3mk2WDQSeZT</image>
         </images>
      </step>
      <step number="16" title="">
         <lines>
            <line bullet="black" level="0">Finally, here are all the pieces of the fully disassembled TR-63 transistor radio, with both front and back views of the circuit board.
               <text_raw>Finally, here are all the pieces of the fully disassembled TR-63 transistor radio, with both front and back views of the circuit board.</text_raw>
            </line>
            <line bullet="black" level="0">That&apos;s it!
               <text_raw>That&apos;s it!</text_raw>
            </line>
            <line bullet="black" level="0">This radio is just one of many Sony gadgets I would come to own over the years. I hope you enjoyed seeing it taken apart.
               <text_raw>This radio is just one of many Sony gadgets I would come to own over the years. I hope you enjoyed seeing it taken apart.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/e1wwPrDNu5DWymUh</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/vClhLWwN4Ay2nQZf</image>
         </images>
      </step>
   </steps>
   <conclusion />
</procedure>

