Gainclone chassis

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#41
Hey I live in DFW, and could easly pick one up in person. Would your machinist be willing to make more now that he has the intial design done, or do you plan on getting more made?? I am very interested.


Let me (us) know if there is a chance of more being made...


It looks almost exactly like my Monarchy Audio SM75 :up:

An externally hosted image should be here but it was not working when we last tested it.
 
#42
Hi David-

Yes it does look like your Monarchy but the GC is not quite as tall.

Henry @ Arrowfab does have the program built for his CNC machine but the issue is heat sinks. The heat sinks were a very LIMITED supply donated by Steve@Apex.jr and were all used.


If you are building a GC then you could get away with quarter inch side panels and Henry could modify the program for that.


Thanks,

Troy
 
#44
Hey Paul-

Just about any local machine shop can "punch" a square or round hole in it for you.

I personally drilled the four corners of the square and then ran a jigsaw with metal cutting blade between the 4 holes.

Saw makes nice straight lines and the 4 holes make nice rounded corners.

Or you could put the pattern on the metal and then drill the pattern with a drill press. VERY labor intensive because you have to then file the "points" of the pattern but if that is all you have, you do what 'cha gotta do.

I'm glad you like the chassis. Again I needed one so I figured others might need one also so I made extra.

I will try to do so on all of my projects so others and myself can benefit from the process.


Thanks,

Troy

PS, I will find and pack the disks this weekend. Hopefully ship out next week. Like the chassis', PLEASE don't hold your breath.
 
#50
Hi Greg-

I used the middle one from Steve@Apex.jr's site.

Avel-Lindberg Inc
*
Input: 2 X 120Vac 50-60Hz 3 1/4" Dia X 1 1/2" Tall
Output: 2 X 25V @ 2 Amps 100Va
$17.95ea


If I had to use a larger(taller) one I would have a circle cut out in the bottom plate and secure the torid to the top plate sticking through the hole in the bottom and a compliant button or "foot" placed under it.

If I'm not mistaken, that is the method used by the YBA integrated.


Thanks,

Troy
 
#51
Heat sink size

Hey Troy, (hope its ok to call you that)


What is the size of the heatsink you use? I have a place we use at work that has a whole room full of unused heatsinks. I bet I can find something that will fit even if I have to cut a bit off of it.


Thanks in advance,
Chris
 
#52
Hey Chris-

The heat sinks I used were 6" x 8" rectangles that I had cut in half.

I'm sure Henry could adapt just about any heat sink to the chassis.

If you have pictures we could also design a vertical enclosure if you’re interested.
 
#55
They have several.......

I wonder what size would be plenty of heatsink, but not overkill? They have about 10 black sinks that are 3x6. They have even more of sinks that are 2x4. Any opinions? I guess you could also just use a piece of aluminum for you sink?
 
#56
Hey Chris-

The 2x4 ones you could use 2 pieces per side and keep the same dimensions and chassis I had built.

The 3x6 might make a VERY interesting small GC... please see the LM3886 IGC digi01 has made... 1.25 x 1.25 square inches... Tiny..

I am currently working on a 1" wide x 1.5-2 inch long board... Stick that in a 2 x 4 inch case.... The hardest part would be fitting the binding posts RCA's and pwr plug on the case.... But I'm sure we could do it... 🙂

And YES 1/4 inch thick x 2 inch high x 8 inches long Aluminum would be sufficent.. Just not fun...
 
#57
Hey all-

I found the discs and will get them out next week I hope... I will ship to the same addresses as the amps.

As promised here is the receipt for DIYaudio donation. As stated before, I made 0(zero) from this sale. It was all about spreading the cost of manufacturing around, helping others who don't have the resource readily available and supporting the forum.

Web Accept Payment Sent (ID # 37W23621K5663304W)


Name:
Daniel Flynn (The recipient of this payment is Non-U.S. - Verified)
Email:
daniel.flynn@ihug.com.au

--------------------------------------------------------------------------------



Total Amount:
-$100.00 USD

--------------------------------------------------------------------------------



Item Amount:
$100.00 USD
Shipping:
$0.00 USD
Handling:
$0.00 USD
Quantity:
1
Item Title:
diyAudio.com Begathon
Date:
Oct. 10, 2004
Time:
21:39:59 PDT
Status:
Completed
 
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