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Old 25th January 2013, 07:37 PM   #2381
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Quote:
Originally Posted by mogliaa View Post
Rui,
This looks superb, absolute perfection! Well done
Ale
Hi Ale,
Many thanks for words, and very important advises.
Will keep you all posted on the evolution.
Cheers.
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Old 26th January 2013, 01:37 AM   #2382
Magz is offline Magz  United States
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Originally Posted by amandarae View Post
Where do you source your chassis?

thanks!

Abe
Front Panel Express. The top was ordered in bare aluminum and I had it chromed at a local plating shop.
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Old 26th January 2013, 03:47 AM   #2383
tyo94 is offline tyo94  Indonesia
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Good work Rui, I like the way you manufacture. So neat and systematic. Can't wait to see the next process
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Old 26th January 2013, 06:40 AM   #2384
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Originally Posted by massimo View Post
Just to show Merlin (as promised) what can be done with a pair of Galaxy Maggiorato enclosures.
On the top of the PS unit, pw xfrm and choke, inside two 15V/50VA xfrms for Coleman's regs. Between the xfrms 8 diodes on a yet-to-be-made pcb. Several caps (big elcaps for filaments, pp for HV) will take space inside too.
The pream hosts two Tango 160H chokes and inside the filament bias Dale's fixing hardware is contact with the front panel through an alu bar. The other two L shaped alu bars are hosting the Coleman's regs and the SSHV2 (pcbs yet-to-be-made) spreading heat on the sides and the top cover. Close to the SSHV2 regs another pcb with 10 pcs 10uF pp caps
A suspended copper subchassis will host the tube sockets.
Very good Massimo, I am a fan of copper, and I like the idea for the sockets, keep us posted on the evolution.
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Old 26th January 2013, 09:30 AM   #2385
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Some photos from the main chassis (PS on another one), work around filament supply with Rod Colleman boards. Cabling is Nordost teflon covered copper.
Wow. And well thought out too.
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Old 27th January 2013, 02:46 PM   #2386
djn is offline djn  United States
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Big thanks to CoolZero for putting links to all the schematics in this thread on the first post. This is a real time saver when looking for something you saw months ago or for new people in this thread.
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Old 27th January 2013, 02:58 PM   #2387
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Thank you coolzero.
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Old 28th January 2013, 02:35 PM   #2388
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Originally Posted by mogliaa View Post
Great work Felipe, looking really good!
As a suggestion, you may want to consider increasing the space between individual resistors of each stack as they will get hot. Not the most efficient way to dissipate the heat by stacking them up vertically. I have them just like you buy added some metal separators between them an longer screws...
Ale
It's enough the increased space between individual resistor?
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Old 28th January 2013, 05:09 PM   #2389
mogliaa is offline mogliaa  United Kingdom
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They will survive if running at 1A, but I'd look at those 5mm metal spacers...
Ale
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Old 28th January 2013, 05:10 PM   #2390
mogliaa is offline mogliaa  United Kingdom
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Btw: Noise is proportional to Temperature so you want to run them as cool as you can...
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