Arvin 8 Transistor AM radio... - Cigar Box Nation2024-03-28T12:37:38Zhttps://www.cigarboxnation.com/forum/topics/arvin-8-transistor-am-radio?groupUrl=vintage-radios-converted-into-guitar-amps&commentId=2592684%3AComment%3A2206153&x=1&feed=yes&xn_auth=noHere is an upload of my Arvin…tag:www.cigarboxnation.com,2015-01-16:2592684:Comment:22061532015-01-16T05:36:45.341ZCorbinhttps://www.cigarboxnation.com/profile/Corbin
<p>Here is an upload of my Arvin 8 Transistor radio practice amp hack, hooked up to 2 piezo pickups from Radio Scrap (Shack) sold as buzzers.</p>
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<p><a href="http://youtu.be/2eysKYQ1WrM" target="_blank">http://youtu.be/2eysKYQ1WrM</a></p>
<p>Here is an upload of my Arvin 8 Transistor radio practice amp hack, hooked up to 2 piezo pickups from Radio Scrap (Shack) sold as buzzers.</p>
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<p><a href="http://youtu.be/2eysKYQ1WrM" target="_blank">http://youtu.be/2eysKYQ1WrM</a></p> The one thing I noticed when…tag:www.cigarboxnation.com,2015-01-10:2592684:Comment:22013302015-01-10T22:27:00.071ZCorbinhttps://www.cigarboxnation.com/profile/Corbin
<p>The one thing I noticed when I did a test to see if it was working was the volume didn't seem to be that high... I'm thinking I need to use a preamp so I don't get any impedance issues between the magnetic pickup and the amp input... What have some of you run into when you used an old radio for this?</p>
<p>The one thing I noticed when I did a test to see if it was working was the volume didn't seem to be that high... I'm thinking I need to use a preamp so I don't get any impedance issues between the magnetic pickup and the amp input... What have some of you run into when you used an old radio for this?</p> such a cool look too!tag:www.cigarboxnation.com,2015-01-10:2592684:Comment:22007822015-01-10T15:00:44.130Z3 String Blueshttps://www.cigarboxnation.com/profile/three_stringer_guitars
<p>such a cool look too!</p>
<p>such a cool look too!</p> I love this Arvin! possibly m…tag:www.cigarboxnation.com,2015-01-10:2592684:Comment:22010252015-01-10T15:00:28.286Z3 String Blueshttps://www.cigarboxnation.com/profile/three_stringer_guitars
<p>I love this Arvin! possibly my total fav!!!!</p>
<p>I love this Arvin! possibly my total fav!!!!</p> Ok, made some progress on hac…tag:www.cigarboxnation.com,2015-01-09:2592684:Comment:21999392015-01-09T05:45:06.701ZCorbinhttps://www.cigarboxnation.com/profile/Corbin
<p>Ok, made some progress on hacking this little radio into a practice amp....</p>
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<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/306401850?profile=original" target="_self"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/306401850?profile=RESIZE_1024x1024" width="721"></img></a> I found the circuit trace that needed to be cut to disable the tuner section from feeding into the power amp. You can see the slice I made on the board below the volume knob,,,…</p>
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<p>Ok, made some progress on hacking this little radio into a practice amp....</p>
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<p><a target="_self" href="http://storage.ning.com/topology/rest/1.0/file/get/306401850?profile=original"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/306401850?profile=RESIZE_1024x1024" width="721"></a>I found the circuit trace that needed to be cut to disable the tuner section from feeding into the power amp. You can see the slice I made on the board below the volume knob,,,</p>
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<p><a target="_self" href="http://storage.ning.com/topology/rest/1.0/file/get/306402972?profile=original"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/306402972?profile=RESIZE_1024x1024" width="721"></a></p>
<p><a target="_self" href="http://storage.ning.com/topology/rest/1.0/file/get/306403938?profile=original"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/306403938?profile=RESIZE_1024x1024" width="721"></a>Above you will see circles that show the points that I will solder the needed wires to the board to make it work as an amp. I will install a switch that will let me select between the radio and the guitar amp modes.</p>
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<p>Green: the cut circuit trace.</p>
<p>Red: the points to connect the tuner back up.</p>
<p>Yellow: the points to hook up the 1/4" guitar jack</p>
<p>( lower yellow the tip connection, upper yellow barrow connection)</p>
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<p><a target="_self" href="http://storage.ning.com/topology/rest/1.0/file/get/306404318?profile=original"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/306404318?profile=RESIZE_1024x1024" width="721"></a></p> You are welcometag:www.cigarboxnation.com,2015-01-08:2592684:Comment:21994582015-01-08T19:28:52.063ZScott aka Farmer Tedhttps://www.cigarboxnation.com/profile/ScottakaFarmerTed
<p>You are welcome</p>
<p>You are welcome</p> Thanks Scott, that is some go…tag:www.cigarboxnation.com,2015-01-08:2592684:Comment:21993782015-01-08T19:03:42.467ZCorbinhttps://www.cigarboxnation.com/profile/Corbin
Thanks Scott, that is some good info there.
Thanks Scott, that is some good info there. Here's a link to the Convert…tag:www.cigarboxnation.com,2015-01-08:2592684:Comment:21996052015-01-08T17:39:21.859ZScott aka Farmer Tedhttps://www.cigarboxnation.com/profile/ScottakaFarmerTed
<p>Here's a link to the Convert Old Radios to Amps group that shows how I did it:</p>
<p><a href="http://www.cigarboxnation.com/group/vintage-radios-converted-into-guitar-amps/forum/topics/1964-philips-am-fm-radio-to-guitar-amp-project" target="_blank">http://www.cigarboxnation.com/group/vintage-radios-converted-into-guitar-amps/forum/topics/1964-philips-am-fm-radio-to-guitar-amp-project</a></p>
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<p>Here's a link to the Convert Old Radios to Amps group that shows how I did it:</p>
<p><a href="http://www.cigarboxnation.com/group/vintage-radios-converted-into-guitar-amps/forum/topics/1964-philips-am-fm-radio-to-guitar-amp-project" target="_blank">http://www.cigarboxnation.com/group/vintage-radios-converted-into-guitar-amps/forum/topics/1964-philips-am-fm-radio-to-guitar-amp-project</a></p>
<p></p> Yeah, I took the battery hold…tag:www.cigarboxnation.com,2015-01-08:2592684:Comment:21995232015-01-08T17:35:09.280ZScott aka Farmer Tedhttps://www.cigarboxnation.com/profile/ScottakaFarmerTed
<p>Yeah, I took the battery holder out to expose the two circuits (one for am/fm tuner and the other the amplifier). I could have hacked into the on/off volume pot, but was a bit tight to do that, so I found the wire leading from tuner circuit to the volume pot and cut there. Spliced a lead onto each, attached the lead from tuner to one side of a three prong on/on switch, the lead to the volume to the middle prong, and the lead to the newly installed 1/4" jack for the guitar to the other…</p>
<p>Yeah, I took the battery holder out to expose the two circuits (one for am/fm tuner and the other the amplifier). I could have hacked into the on/off volume pot, but was a bit tight to do that, so I found the wire leading from tuner circuit to the volume pot and cut there. Spliced a lead onto each, attached the lead from tuner to one side of a three prong on/on switch, the lead to the volume to the middle prong, and the lead to the newly installed 1/4" jack for the guitar to the other outside switch prong. Nice part of this radio is that there was already an additional headphone jack, which allows for quiet amped playing and/or radio listening.</p>
<p>In the end, the radio still functions, and with the flick of the switch, it can be used as an amplifier. Was a fun project.</p> Did you use the switch to dis…tag:www.cigarboxnation.com,2015-01-08:2592684:Comment:21993522015-01-08T16:20:39.802ZCorbinhttps://www.cigarboxnation.com/profile/Corbin
Did you use the switch to disconnect the tuner section of the radio?
Did you use the switch to disconnect the tuner section of the radio?