D.I.Y. 100 Dollar Guitar Amp ! 6V6/6L6 PP ! - diyAudio
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Old 22nd February 2014, 09:15 AM   #1
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Default D.I.Y. 100 Dollar Guitar Amp ! 6V6/6L6 PP !

Better late then never ! Ok I guess I'm a few years late for the challenge but I saved the best wine for last ! .
I made a PP 6V6 / 6L6 Guitar Amp for 100 Dollars ! . I saw the challenge to make one and decided to give it a try ! . 20 dollars for PT and Choke - Navy Surplus used .
23 dollars Chassis . 12 dollars tube sockets . 30 dollars (new) OT 35 watt PP .
5 dollars for 40 feet of copper wire. 4 dollars for 2 new pots. 10 dollars total for the recycled misc. parts , switches , plugs , used large caps and for a fuse holder .
I'm At 84 dollars now ! .
16 dollars still left for a few new resistors and for the used tubes. two tubes were 50 cents , two were 3 dollars. The 2x4 was included in the 23 dollars up above and it was 70 % off because it was warped and it Makes no-difference using only 12 inch pieces ! .
I just barely made it at 100 dollars ! . Only because I had already bought most of the parts really cheap ! .

Two 6V6 , One 5Y3, One 6SN7 , and One 6SQ7 . Design was Based upon A 1948 GE and 1953 and A Gretch model with cathode bias . I decided against using a 6SC7 phase inverter like the Gretch did .
It Can use a 5U4 , 6SL7 and two 6L6's also , but not for only 100 dollars ! .

100 Dollar Guitar amp - A mission that is not impossible ! .
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Last edited by Gary Vee; 24th February 2014 at 08:40 AM. Reason: typos
 
Old 22nd February 2014, 11:32 PM   #2
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Building one for $100 would be no problem for the participants of the Challenge. Designing it so others could do it also, that was the tricky part.
 
Old 23rd February 2014, 03:40 AM   #3
kuroguy is offline kuroguy  Germany
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Check your math. You're way over $100. still, you got out with a new amp, so you got that going for you.
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Old 23rd February 2014, 04:26 AM   #4
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Printer 2 - I Don't think I could design one for only 100 dollars that others could build - not one with a power transformer or push pull transformers ! .
and Kuro Guy I was at 85 dollars when I should of said 84 dollars actually when I re-checked the math ! .

I could make a side push SE line stereo amp for right around 100 though with two used 5 tube radios ! .
I'm not afraid of line amps with indexed power chords and a fuse !
They are just about the same as what everything else new is made with today even the computers we are on ! .
I would actually perfer line amps over all transformer amps , the problem is our wimpy little 120 volt USA power grids ! .

DC is basically the old Edison school of thought and I am from the more modern Tesla AC way of thinking !
The fuse was actually Edisons greatest invention I think after his failed light bulb and his successful light bulb ! .
Why should I use a DC power transformer to add more noise and add more bass if neither one is necessary ?
The whole DC thing with low 115 line current is a pure money making scam of Edison from what I see it as being .

Tesla " Mr. AC Power " was gonna give US free electricity and Edison , JP Morgan and Marconi sold it to US , RCA basically was The Racketeering Corporation of America and there is Edisons other Company GE ! .

Last edited by Gary Vee; 23rd February 2014 at 04:50 AM.
 
Old 23rd February 2014, 05:31 AM   #5
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where did you get the 35w Output transformer for $30
 
Old 23rd February 2014, 07:38 AM   #6
tinitus is offline tinitus  Europe
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The Hundred-Buck Amp Challenge

I knew we had it somewhere, but could not find it because it was made 'sticky'
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Old 23rd February 2014, 12:59 PM   #7
kuroguy is offline kuroguy  Germany
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20+23+12+30+5+4+10=109. Then you added 15 for resistors and tubes.
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Old 23rd February 2014, 01:32 PM   #8
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I counted $120 so ummmmm..........
 
Old 23rd February 2014, 02:11 PM   #9
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Quote:
Originally Posted by Gary Vee View Post
Printer 2 - I Don't think I could design one for only 100 dollars that others could build - not one with a power transformer or push pull transformers ! .
and Kuro Guy I was at 85 dollars when I should of said 84 dollars actually when I re-checked the math ! .

I could make a side push SE line stereo amp for right around 100 though with two used 5 tube radios ! .
I'm not afraid of line amps with indexed power chords and a fuse !
They are just about the same as what everything else new is made with today even the computers we are on ! .
I would actually perfer line amps over all transformer amps , the problem is our wimpy little 120 volt USA power grids ! .

DC is basically the old Edison school of thought and I am from the more modern Tesla AC way of thinking !
The fuse was actually Edisons greatest invention I think after his failed light bulb and his successful light bulb ! .
Why should I use a DC power transformer to add more noise and add more bass if neither one is necessary ?
The whole DC thing with low 115 line current is a pure money making scam of Edison from what I see it as being .

Tesla " Mr. AC Power " was gonna give US free electricity and Edison , JP Morgan and Marconi sold it to US , RCA basically was The Racketeering Corporation of America and there is Edisons other Company GE ! .
Line powered amps are a no-no. What makes you think a fuse will blow before you do, also indexed power cords assume the person wiring the outlet actually did it properly. Also computer ps's have a transformer in them to isolate the main's from the rest of the computer.
 
Old 24th February 2014, 09:11 AM   #10
tinitus is offline tinitus  Europe
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please no more talk about direct mains powered amps

it is illegal and forbidden by forum rules


moderation
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