One off guitar amp

firechief · 03:34 PM

I have been itchin to show off this amp I designed last year but hesitant also because I cant share the schematic. I did this job for a friend and he owns the design. By that I mean he paid me for the work. This thing has 10 tubes and 11 pots. There were two of them built and I there will be no more, it's was just too much work.
Two pre amp channels, a cold and a hot. Two 6L6GC output sections with a common power supply. Effects in and out. ect ect. The cad work was done with KICAD. It's free and a great piece of software. It even does a 3D rendering witch is flashy if nothing else.

firechief · 2nd April 2010, 03:39 PM

Ok that is the pre -amp board, let's see if I can upload the rest

firechief · 2nd April 2010, 03:41 PM

now Im rolling----chassis pix -- all hand done, what a pain!

firechief · 2nd April 2010, 03:43 PM

the underside

firechief · 2nd April 2010, 03:51 PM

As far as the design it is pretty standard. Lot's of things borrowed from the hollowed halls of the big named guitar amps of yesterday. The tone stack for instance is straight Marshal. the output and power transformers are Hammonds. and almost all to the parts came from AES. I should also give more than a nod to a publication named "the ultimate tone" It was worth every cent of the modest price I paid for it.

firechief · 2nd April 2010, 04:06 PM

the scene of the crime-- So dark no one can see me!

chris661 · 2nd April 2010, 04:37 PM

Sure looks nice. Which speakers are being used with it?

firechief · 2nd April 2010, 04:56 PM

Hi chris661
Well each output section is good for 25 Watts, so My friend uses 2 Marshal 4x12 cab's --- Yes he likes it loud! This whole concept is his idea, I would never have done it but for him. He set down what he wanted in an amp, and paid for the parts and for me to become educated. It was a fair trade I would say. Part of the attraction is he wanted to use it with a stereo effects device, so two pre-amp channels neck down to one just out of the effects send, and the stereo outputs of the device goe's to seperate power sections.

firechief · 2nd April 2010, 06:19 PM

here is the owner in full bloom

firechief · 2nd April 2010, 06:39 PM

and here is the builder,

2nd April 2010, 04:37 PM	#7
chris661 diyAudio Member Join Date: Feb 2008 Location: Lancashire Blog Entries: 7	Sure looks nice. Which speakers are being used with it? __________________ "Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo My setup: http://www.diyaudio.com/forums/multi...tang-band.html

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2nd April 2010, 03:51 PM	#5
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	As far as the design it is pretty standard. Lot's of things borrowed from the hollowed halls of the big named guitar amps of yesterday. The tone stack for instance is straight Marshal. the output and power transformers are Hammonds. and almost all to the parts came from AES. I should also give more than a nod to a publication named "the ultimate tone" It was worth every cent of the modest price I paid for it.

2nd April 2010, 04:56 PM	#8
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	Hi chris661 Well each output section is good for 25 Watts, so My friend uses 2 Marshal 4x12 cab's --- Yes he likes it loud! This whole concept is his idea, I would never have done it but for him. He set down what he wanted in an amp, and paid for the parts and for me to become educated. It was a fair trade I would say. Part of the attraction is he wanted to use it with a stereo effects device, so two pre-amp channels neck down to one just out of the effects send, and the stereo outputs of the device goe's to seperate power sections.

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