getting stuff into the chassis

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ampcabinets
Senior tube assistant
Posts: 152
(5/24/05 11:42 pm)
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  getting stuff into the chassis
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 just warning you guys.
I got my3 new chassis' in this week from Nik at ceriatone.com and have started mounting the inards in the 5F6a.
It came white powder coated (Including the cap can), with no lettering as he wasn't set up for silkscreening onto the chassis yet (but he is now), but I had red lettering, silk screened locally from an exact size print out I did. I had the lettering done so it can be read from the front of the amp, instead of the back.(forwards and backwards are available for inkjet printing from my website, in a day or so...if you want a copy I can email it to you.)... Red chickenhead knobs, red silicone rubber covers for the on/off and standby switches (we call them gorilla nipples, no offense to the gorilla's), red 4x10 cabinet/maroon grill, leather stiched handle, chrome corners and feet.
It's gonna be nice, if I get it right.
I may have questions when I start firing it up, so watch out.
I'll be doing that black and gold 5E3x2 right after this one.

oh yeah, it'll probably look reddish

Edited by: ampcabinets at: 5/24/05 11:45 pm
 
phsyconoodler
I will work on all amps
Posts: 388
(5/25/05 12:07 am)
Reply  Re: getting stuff into the chassis
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 Hey ampcabinets,
how did you do the exact size printout for the silkscreening?I have a friend who does the silkscreening for me now and he agonizes over the sizing.I am in the process of building a 2-10 with a marshall circuit.Tweed cabinet and mirror polished stainless faceplate.Lots of controls;6 chickenhead knobs to be exact.With tremelo.
 
ampcabinets
Senior tube assistant
Posts: 154
(5/25/05 12:22 am)
Reply  faceplate
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Psycho,
I did it in windows paint (sort of low resolution) and transfered it into corel draw, which is high resolution.
I put my paper over the chassis and marked where each pot, jack, lamp, etc went, with a dark pencil, aligning the corners of the paper with the corners of the chassis. I then printed out about 10 copies before I got the spacing and alignment right. I have my screen resolution at 1280x1024, so I can get a full 8.5x11 sheet of paper on the screen. I print out a page at a time and hold it over the spacing sheet until I get it right. After printing on the front, turn it over and print on the back, so you don't waste paper.
However, I only wasted paper, not silkscreen material or anything else. paper is cheap. I then taped the 2 sides together (for the long bassman front) and aligned it on the front plate and it fit perfectly.

after I got it all done, I decided to turn the writing up side down, so I had coreldraw(ms paint will do it too) rotate it 180 degrees (up side down) and redid the text. I even added a logo.
I then took it to a t-shirt silkscreener who uses the photo process,(which is exact size) and for 15 bucks (since it is a one color screen) they made me a silkscreen I can use over and over with what they call dry ink or paint. It is on a wooden frame that sits exactly on the bassman top. It is supposed to be permanent, but I will be adding a coat of laquer to be sure.
It all lined up pretty dern perfectly.

does any of this make sense?
rob


 

Edited by: ampcabinets at: 5/28/05 5:20 pm
 
ampcabinets
Senior tube assistant
Posts: 160
(5/28/05 5:16 pm)
Reply
  Re: transformer question
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 in this layout, is there anything wrong with this Xformer layout?
any suggestions?

The silkscreen will be added last, since it can get dinged up in the process of building. Somone reminded me of that, so I decided it was the best thing to do.
05-29-05 added the following:
by layout, I mean the order of the transformers, PT, choke, OT, OT sideways, far enough away from the PT, etc.
rob

 

Edited by: ampcabinets at: 5/29/05 3:32 pm
 
phsyconoodler
I will work on all amps
Posts: 394
(5/29/05 10:45 pm)
Reply  Re: transformer question
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 Ampcabinets,
The transformers don't need to be that far apart,just 90 degrees with respect to the windings,so they don't hum.If you look at a real bassman,they are side by side.The idea is to keep the OT far away from the inputs.
By the way,thanks for the info on the printouts.
Phsyco
 
ampcabinets
Senior tube assistant
Posts: 172
(5/29/05 10:59 pm)
Reply
  Re: transformer question
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 Psycho,
you're welcome.
I will move the OT next to the PT and move the choke on the other side. That info is what I was after.

as for the drawings, you should be able to load them in windows paint (or any other graphics program), change the logo and print away in real size. I use an HP injet. Just right click on them and use "save as" to save them to your hard disk for future reference. Kim at ceriatone has suggested that I make these available for those DIY'ers when I make the diagrams available on amplifiercabinets.com. good suggestion.

A whole lot of guys have said they wish their old amps' control labels faced front.

I guess the older idea stems from the old guys playing their amps in front of them, before thay had massive p.a. systems to ramp them up from behind. Now days we use them sort of like monitors in large venues, and let the p.a. do the work, since the speakers are out front..

thanks,
rob
 
 
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