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Old 9th November 2010, 12:18 PM   #21
Salas is online now Salas  Greece
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Quote:
Originally Posted by ToreM View Post
1. Is it OK to use 2SK170GR for the unmatched J-Fets?
Yes. It can bring somewhat lower voltages than average by not driving the LEDS as hard, but its of no real consequence.
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Old 9th November 2010, 07:36 PM   #22
jimbop is offline jimbop  United States
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AndrewT responded to my question about costs, but did not answer my question:

Can someone provide a ballpark estimate of the cost to build a Mermerizse B1?

Thanks,
Jim D
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Old 10th November 2010, 12:19 AM   #23
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Quote:
Originally Posted by jimbop View Post
AndrewT responded to my question about costs, but did not answer my question:

Can someone provide a ballpark estimate of the cost to build a Mermerizse B1?

Thanks,
Jim D

It's hard to give a decent estimate without knowing how you want to set it up. I'm going to throw out a wild guess of $250ish if you go bare bones (basic case, no custom front panel, no exotic parts, blue velvet pot, antek tranny). You could easily double or triple this price by upgrading some parts and going with a nicer enclosure.
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Old 10th November 2010, 02:39 AM   #24
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Horio, thanks for the info - that's what I was looking for.

Jim D
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Old 10th November 2010, 09:38 AM   #25
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by jimbop View Post
AndrewT responded to my question about costs, but did not answer my question:
Quote:
Originally Posted by Horio View Post
It's hard to give a decent estimate without knowing how you want to set it up. I'm going to throw out a wild guess of $250ish
I think you can build a cheap one for under $150.
The final price ballpark depends on what you have to pay for those 7relays and 4FETs.
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Old 10th November 2010, 11:47 AM   #26
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The matched quad of 2sk170's also is an expense. I would guess $20.00 max for 2sk170's.

As stated on other thread, IRFP9140, and IRF140s can be used, and they are occasionally a bit less expensive, at least in local suppliers.
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Old 10th November 2010, 01:01 PM   #27
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I was able to source the Omron 12V relays from an AU source through the 'bay at a reasonable price. I was told they had "1000" at the time. I have sent them mail to ask if they have more & the current price.
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Old 10th November 2010, 02:17 PM   #28
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And I am out of Relays, so this is good!
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Old 10th November 2010, 05:01 PM   #29
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Has anyone hotrod'ed the Mezmerize ?
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Old 10th November 2010, 05:11 PM   #30
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Originally Posted by janpo View Post
Has anyone hotrod'ed the Mezmerize ?
I'm planning to hot rod mine. My understanding is the board is not optimized for it like the Hypno Blue, but it shouldn't be too hard to do. I was thinking of using a couple of 10,000uF off-board capacitors, a Mills 12W 10ohm resistor (also off board), and bumping up the MUR120 diodes to MUR820's. I'm not planning to run it too hot, so I'd just mount the MOSFETs to the chassis floor.

Here's a good link to a hot rod build using a regular hypno board.

Last edited by Horio; 10th November 2010 at 05:15 PM.
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