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Old 6th October 2011, 05:04 AM   #3661
56oval is offline 56oval  Australia
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Quote:
Originally Posted by lowpoke View Post
For someone who doesn't know anything about electronics, you're doing a pretty impressive job of these amps!
I think I scare a couple of my friends and follow the schematic as a P&ID .
I build and my mate checks it for me ,but its better than buying off the shelf and you can go that extra yard with the design .

CHeers
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Old 6th October 2011, 07:59 AM   #3662
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Originally Posted by 56oval View Post
Very nice looking 300B SET . How do you find the Mundorf tube cap's ,I've used the Tube Cap range in the amps .The larger SET is complete film cap supply and the smaller pair have a mixture of Evox,BHC and Mundorf Tube caps .
Lucas is a top bloke ,knows his stuff .Which is good because I don't have a clue about electronic's ,I think I scare him some times when my question's .

Cheers
The Mundorf - M caps was a gamble. I used 3 X 47 and one 100/500V. In the first 30mins. one shorted and took out the rec tube. Partsconnexion replaced it. Now all have been working for months with lots of use. The Silver Dragon has a REAL sound and I'm building myself one. And once again going for Mundorf film caps.

What did your amp cost in parts. The one I built cost $3.5K in just parts.
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Old 6th October 2011, 10:06 AM   #3663
56oval is offline 56oval  Australia
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Originally Posted by mhouston View Post
The Mundorf - M caps was a gamble. I used 3 X 47 and one 100/500V. In the first 30mins. one shorted and took out the rec tube. Partsconnexion replaced it. Now all have been working for months with lots of use. The Silver Dragon has a REAL sound and I'm building myself one. And once again going for Mundorf film caps.

What did your amp cost in parts. The one I built cost $3.5K in just parts.
To build the 4 amps @8K . But theres alot of iron and most of it custom values .
Between the 2 midamps thers 6 power supply transformers ,20 chokes plus reg fil supplys .
The tweeter amps between them have 4 power supply transformers and 6 chokes plus reg fil supply's .
Mundorf caps ,a friend is the Oz distributor which helped and I had custom value resistors from Caddock in the TX & MS series some of the values I bought 10 of .
The 5mm copper plate wasn't cheap .
Lucas put alot work into the OPT's heres the Raven R1 OPT
Click the image to open in full size.

A couple of construction shot
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Timber case's need to be finished
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CHeers
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Old 6th October 2011, 10:08 AM   #3664
56oval is offline 56oval  Australia
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The mid section they will be running drivers are PHL
Click the image to open in full size.

15" bass baffle
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Sorry if I've gone off topic

CHeers
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Old 6th October 2011, 10:25 AM   #3665
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NICE MAN!
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Old 6th October 2011, 10:51 AM   #3666
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NICE MAN!
I am afraid you are right
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Old 6th October 2011, 12:55 PM   #3667
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@56oval: Nothing exceeds like excess. When you have this puppy up and going invite me around for a listen. Or just a look!
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Old 6th October 2011, 10:37 PM   #3668
Manta79 is offline Manta79  Netherlands
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Originally Posted by lowpoke View Post
For someone who doesn't know anything about electronics, you're doing a pretty impressive job of these amps!
Yes, i am impressed too !!
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Old 7th October 2011, 07:18 PM   #3669
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I noticed the Raven OPTs have a 2ohm secondary resistance. If I get a chance I will compare it against the big Hammonds I used in the Silver Draggon. 2ohms sounds nice and low. We used 30W OPTs in my amp for a 7.5W output but had to use the bigger trannies so they could handle the idle current (98mA).
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Old 8th October 2011, 10:26 AM   #3670
56oval is offline 56oval  Australia
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@56oval: Nothing exceeds like excess. When you have this puppy up and going invite me around for a listen. Or just a look!
No prob's .

CHeers
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