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Old 17th December 2010, 10:10 AM   #11
audi0 is offline audi0  Australia
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The Dibond ACM is a nice look with the contrasting core colour, light weight too. Nice job!
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Old 18th December 2010, 12:14 AM   #12
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For some reason I envision using grooves like that for routing the heater wiring.
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Old 18th December 2010, 02:31 AM   #13
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Originally Posted by gja View Post
Yes 200x140 is pretty small.The idea is to find a "standard" dimension.I would just provide the top plate for the moment.Might improve the design so that you can ship it flat and fold down the sides,could be an option.
Still need to which are the most used octal sockets and noval sockets...Anyone got a clue?
For 8-pin & 9-pin sockets, the Belton Micalex are very high quality. Both available in bottom mount.
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Old 18th December 2010, 03:50 AM   #14
ide2003 is offline ide2003  Indonesia
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nice job!, and nice design too GJA, couldn't wait for complete assembly
I too, have done many custom cnc chassis jobs for local DIYers
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Old 18th December 2010, 06:23 AM   #15
audi0 is offline audi0  Australia
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Quote:
Originally Posted by mashaffer View Post
For some reason I envision using grooves like that for routing the heater wiring.
Oh well it looks good anyway
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Old 18th December 2010, 06:55 AM   #16
gja is offline gja  Spain
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I agree those belton sockets look good...After looking at sockets on the net i realized most dimensions are pretty standard.
Im changing the design for more space and drawing out the pp version.
Ill have four versions:
1-se 2 octal tubes (ex:6j7g/6v6 etc)
2-se 1 noval driver octal output (ex:ecc81/6l6 etc)
3-pp 3 octals (ex: 6sl7/2x6l6 etc)
4-pp 1 noval driver 2 octal ouputs (ex:ecc83/2x6l6 etc)
Thanks for your comments!
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Old 18th December 2010, 10:43 AM   #17
Jaap is offline Jaap  Netherlands
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Quote:
Originally Posted by gja View Post
I agree those belton sockets look good...After looking at sockets on the net i realized most dimensions are pretty standard.
Im changing the design for more space and drawing out the pp version.
Ill have four versions:
1-se 2 octal tubes (ex:6j7g/6v6 etc)
2-se 1 noval driver octal output (ex:ecc81/6l6 etc)
3-pp 3 octals (ex: 6sl7/2x6l6 etc)
4-pp 1 noval driver 2 octal ouputs (ex:ecc83/2x6l6 etc)
Thanks for your comments!
My experience is that you are always short of big holes.
I would choose for at least 2 holes for drivers/channel. Useful for differential cascode at front (see PP-1c design). And then, it is always nice to have additional a OD3 (or perhaps 2) on the deck. And what about 2 single pentodes/channel as a driver ? Or a aikido as a driver ?
Holes that you do not use are for airflow or you can put a placebo tube in it.
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Old 18th December 2010, 03:49 PM   #18
ide2003 is offline ide2003  Indonesia
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Funny you mention that Jaap, after > 1 year I do need bigger hole on my aikido, replacing 6X4 to AZ1..think of disassembling the whole thing..repaint job..
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Old 18th December 2010, 08:28 PM   #19
gja is offline gja  Spain
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it looks like this is going to take a while before I come up with some sort of "standard" chassis...too many options!
One thing: this chassis is intended for ONE channel, Ive always preferred the looks of two monoblocks (just my taste...).It also suits guitar amps which only need one channel.
Ill think about a two channel layout later...
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Old 21st December 2010, 06:30 PM   #20
gja is offline gja  Spain
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Ive decided to use the belton sockets as standard dimension,they look good and are easily available.
The chassis will be bigger: 230x180 or even 250 x 200.Ill leave the holes for the transformer to be done by the owner,there just too many options.
Im thinking of building an optional housing around the chasis out of carbon fiber (I run a shipyard so theres plenty available.The idea is to get a real high tech look.
I wired one of the protos (sandblasted finish) and it does look really good with valves and sockets...Im having quite a lot of fun with this project!will post a picture later.
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