Yamaha yg15 schematic needed - Cigar Box Nation2024-03-29T01:44:50Zhttps://www.cigarboxnation.com/forum/topics/yamaha-yg15-schematic-needed?commentId=2592684%3AComment%3A3333214&xg_source=activity&feed=yes&xn_auth=noThe MA-104 is the one I got.…tag:www.cigarboxnation.com,2019-05-19:2592684:Comment:33332512019-05-19T18:31:48.600ZPaul Craighttps://www.cigarboxnation.com/profile/PaulCraig
<p>The MA-104 is the one I got. I just changed that input cap to a 2-way switch with the original .047 on one side and a .1 on the other side. The speaker was a large Subwoofer from a TV Surround Sound System. With the Gain turned down and the tone at 50%, you can get great acoustic guitar amp sound with your piezo CBG or plug in a Bass. Just dial up a little Gain for some fuzz effect.</p>
<p>The MA-104 is the one I got. I just changed that input cap to a 2-way switch with the original .047 on one side and a .1 on the other side. The speaker was a large Subwoofer from a TV Surround Sound System. With the Gain turned down and the tone at 50%, you can get great acoustic guitar amp sound with your piezo CBG or plug in a Bass. Just dial up a little Gain for some fuzz effect.</p> I'm looking into it. Thankstag:www.cigarboxnation.com,2019-05-19:2592684:Comment:33332142019-05-19T01:27:45.481ZKOOL DOG HOOCHhttps://www.cigarboxnation.com/profile/WillBonner
<p>I'm looking into it. Thanks</p>
<p>I'm looking into it. Thanks</p> Google "MA104 mod", you'll be…tag:www.cigarboxnation.com,2019-05-18:2592684:Comment:33330722019-05-18T23:31:08.870Zrobert joneshttps://www.cigarboxnation.com/profile/robertjones
<p>Google "MA104 mod", you'll be pleasantly surprised if you try it. I snatch up every First Act MA104 I can get my hands on now, do the mod and shove the guts into Acid Cigar boxes</p>
<p>Google "MA104 mod", you'll be pleasantly surprised if you try it. I snatch up every First Act MA104 I can get my hands on now, do the mod and shove the guts into Acid Cigar boxes</p> Glad you got it working.
I al…tag:www.cigarboxnation.com,2019-05-18:2592684:Comment:33331222019-05-18T20:15:22.697ZPaul Craighttps://www.cigarboxnation.com/profile/PaulCraig
<p>Glad you got it working.</p>
<p>I also have a lot of tube amp schematics - Fender, Gibson, Marshall, Valco, Silvertone and Ampeg.</p>
<p>On a side note: First Act has a little 4watt and 10watt guitar amp that most folks pawn because they sound so bad. I found one on the curbside and it did sound bad. The source of the bad sound? Cheap small speaker. I added a Jenson Mod speaker and the Bassman mod(Higher value input cap) on a switch and that little amp Rocks.</p>
<p></p>
<p>Glad you got it working.</p>
<p>I also have a lot of tube amp schematics - Fender, Gibson, Marshall, Valco, Silvertone and Ampeg.</p>
<p>On a side note: First Act has a little 4watt and 10watt guitar amp that most folks pawn because they sound so bad. I found one on the curbside and it did sound bad. The source of the bad sound? Cheap small speaker. I added a Jenson Mod speaker and the Bassman mod(Higher value input cap) on a switch and that little amp Rocks.</p>
<p></p> Shows how rusty I am, I forgo…tag:www.cigarboxnation.com,2019-05-18:2592684:Comment:33328412019-05-18T11:37:43.685ZKOOL DOG HOOCHhttps://www.cigarboxnation.com/profile/WillBonner
<p>Shows how rusty I am, I forgot about the filtered voltage drop. It's been a million years since I used any practical electronics outside of resetting the receiver and changing fuses.</p>
<p>Shows how rusty I am, I forgot about the filtered voltage drop. It's been a million years since I used any practical electronics outside of resetting the receiver and changing fuses.</p> 34V ac fully rectified is 48V…tag:www.cigarboxnation.com,2019-05-18:2592684:Comment:33327712019-05-18T10:11:01.878ZTimothy Hunterhttps://www.cigarboxnation.com/profile/TimothyHunter
<p>34V ac fully rectified is 48VDC peak. filtered will probably come down to 44V DC. +- 22V DC is the max for the amp. so maybe its right? </p>
<p>34V ac fully rectified is 48VDC peak. filtered will probably come down to 44V DC. +- 22V DC is the max for the amp. so maybe its right? </p> This sucker rocks! One of my…tag:www.cigarboxnation.com,2019-05-18:2592684:Comment:33329472019-05-18T07:41:24.456ZKOOL DOG HOOCHhttps://www.cigarboxnation.com/profile/WillBonner
<p>This sucker rocks! One of my neighbors has a Cube and he did a side by side comparison by wringing them out with the same song/settings(as close as possible). You'd be hard pressed to distinguish between the two. What the hell for free I'll take it! Man! You've gots some oldies there, my brother back in the day had a "Monkey Wards" I don't know if my nephew still has it and the lap steel, I had forgotten all about it until I saw your list. Thanks for the walk down memory lane. I might be…</p>
<p>This sucker rocks! One of my neighbors has a Cube and he did a side by side comparison by wringing them out with the same song/settings(as close as possible). You'd be hard pressed to distinguish between the two. What the hell for free I'll take it! Man! You've gots some oldies there, my brother back in the day had a "Monkey Wards" I don't know if my nephew still has it and the lap steel, I had forgotten all about it until I saw your list. Thanks for the walk down memory lane. I might be taking you up on that offer. Thanks!</p> hi Guys while the folks into…tag:www.cigarboxnation.com,2019-05-18:2592684:Comment:33328322019-05-18T04:07:26.237ZTaffy Evanshttps://www.cigarboxnation.com/profile/TaffyEvans
<p>hi Guys while the folks into amps are gathered here, here is a list of the amp manufacturers who's circuit diagrams I have, just in case any of you are interested at any time.</p>
<p>There must be 80 diagrams for different models pre 1975 for the following brands</p>
<p> Epiphone - Estey - Gibson - Harmony - Kay - Supro - Sears Silvertone - Wards Airline - Ampeg - Valco.</p>
<p>Glad you got it sorted Will.</p>
<p>Taff</p>
<p></p>
<p>hi Guys while the folks into amps are gathered here, here is a list of the amp manufacturers who's circuit diagrams I have, just in case any of you are interested at any time.</p>
<p>There must be 80 diagrams for different models pre 1975 for the following brands</p>
<p> Epiphone - Estey - Gibson - Harmony - Kay - Supro - Sears Silvertone - Wards Airline - Ampeg - Valco.</p>
<p>Glad you got it sorted Will.</p>
<p>Taff</p>
<p></p> I'm thinking about buying a…tag:www.cigarboxnation.com,2019-05-17:2592684:Comment:33329172019-05-17T23:12:50.080ZKOOL DOG HOOCHhttps://www.cigarboxnation.com/profile/WillBonner
<p>I'm thinking about buying a circuit board with the chip in it and modify it to use in in the second housing. The repaired amp sound great. Thanks for the info.</p>
<p>I'm thinking about buying a circuit board with the chip in it and modify it to use in in the second housing. The repaired amp sound great. Thanks for the info.</p> As close as I can tell it is…tag:www.cigarboxnation.com,2019-05-17:2592684:Comment:33327392019-05-17T23:02:35.496ZKOOL DOG HOOCHhttps://www.cigarboxnation.com/profile/WillBonner
<p>As close as I can tell it is the same circuit. BTW the transformer is spitting out 34 vac. I don't know if my meter is off (harbor freight freebie) or if the dc voltage is 24 v, imo 10 v is a big drop through a rectifier circuit.</p>
<p>As close as I can tell it is the same circuit. BTW the transformer is spitting out 34 vac. I don't know if my meter is off (harbor freight freebie) or if the dc voltage is 24 v, imo 10 v is a big drop through a rectifier circuit.</p>