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Old 13th July 2013, 10:26 PM   #801
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I have ordered the board now through DIYaudio. Ordering parts I find the Jfet is no longer carried with Mouser. I will look at other sites, any preferred?

What is "matched" vs. "unmatched" N-jfet?? How do I know which I am ordering?? I need 4 of one and 6 of the other.
Thanks!!
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Old 13th July 2013, 11:45 PM   #802
Salas is offline Salas  Greece
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Quote:
Originally Posted by HiFi Rookie View Post
Thanks! what are a couple sites you would recommend for purchasing RCAs?
Will I need any additional components (other than the diyaudio parts list) to set up volume control?
Beyond the Alps pot itself, extension shaft and some knob.
Try Ebay USA stores for Neutrik Rean NYS367.
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Old 13th July 2013, 11:51 PM   #803
Salas is offline Salas  Greece
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Quote:
Originally Posted by HiFi Rookie View Post
I have ordered the board now through DIYaudio. Ordering parts I find the Jfet is no longer carried with Mouser. I will look at other sites, any preferred?

What is "matched" vs. "unmatched" N-jfet?? How do I know which I am ordering?? I need 4 of one and 6 of the other.
Thanks!!
Matched means same IDSS parameter. They bias with small offset voltage that way.
Ask in the swap meet forum here, maybe some members can offer.
Or ask this guy:
Store | FET Audio
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Old 15th July 2013, 02:24 AM   #804
kop89 is offline kop89  United States
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Default Volume pot connection

About the volume pot terminals on the PCB, can anyone confirm which holes are for input, ground, and output for each channel?

I could have found out by looking at the back of the PCB, but forgot to do that and the PCB's already mounted with IRFPs greased to the chassis

Thanks!
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Old 15th July 2013, 12:38 PM   #805
Salas is offline Salas  Greece
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File Type: png Mez_pot_top.png (12.6 KB, 244 views)
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Old 16th July 2013, 11:36 PM   #806
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Default mezmerize build

So I have ordered everything I can from Mouser, Farnell, DIY HiFi audio supply... etc.

I need help, if someone would be soo kind, finding where to order the correct parts for my mezmerize build:

-Decoupling A 150nF/63v
-12v Relay 2 poles
-05v Relay 2 poles
-Fuse 115V (not sure which one to get)
-Fuse 230V (not sure which one)
-Jfets matched/unmatched

Thank you to the person that can help the newbie out (Salas)! Also, a link to your preferred transformer for this build would be greatly appreciated!!!
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Old 16th July 2013, 11:38 PM   #807
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Oh and
how about a link to your preferred pot for this build (volume control).
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Old 17th July 2013, 01:40 AM   #808
Gooch is offline Gooch  United States
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Quote:
Originally Posted by HiFi Rookie View Post
Oh and
how about a link to your preferred pot for this build (volume control).
I just bought mine from here 10K, Blue Velvet - STEREO

I got my jfets for here Resistors, MOSFETs items in AudioFET store on eBay!

Relays from mouser 551-EA2-12NJhttp://www.mouser.com/ProductDetail/...fFWinIjg%3d%3d

Last edited by Gooch; 17th July 2013 at 01:45 AM.
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Old 17th July 2013, 02:15 AM   #809
Salas is offline Salas  Greece
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For primary inline fuse you may divide your transformer's wattage by your wall voltage.
Prefer 12V relays and put a wire jumper where it says 'note' on the PCB, they heat the 7812 less.
Decoupling you will most possibly not need if you got the BC517 relay driver transistor.
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Old 17th July 2013, 03:15 AM   #810
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Thanks Gooch! That helps a lot.
Is this 5v relay ok? I picked up the NEC 12v relay you recommended.
Mouser # 653-G5V-2-H1-DC5
http://www.mouser.com/Search/Product...3-G5V-2-H1-DC5
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