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The Phonoclone and VSPS PCB Help Desk
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Old 11th February 2019, 01:10 AM   #4091
rjm is offline rjm  Japan
Richard Murdey
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@mimikos

Thanks for the photos!
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Old 11th February 2019, 02:28 PM   #4092
daemonsgr is offline daemonsgr  United Kingdom
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Quote:
Originally Posted by mimikos View Post
the joy of DIY is that everything can be customized according to your needs and imagination..


here's my view on a "Emerald" based phono stage I put together a few months ago..


custom made pcb for the rectification and the aux power supply, delay relay to get rid of the popping noise as a result of capacitors charging/ discharging during on/off operation, cartridge loading and gain selectors at the front panel..
nice!!!!!
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Old 13th February 2019, 02:04 PM   #4093
daemonsgr is offline daemonsgr  United Kingdom
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Mouser order is here!!

Im missing the Nichicon Caps and I was thinking about upgrades for the audio path too. The KEMET barrel too. Any pointers?

I see in some images posted my RJM (other builds maybe) and others that you use another resistor brand, Red ones. Are these "PRP PR9372"? or something else? I have hificollective that I can get a couple of things.

Thanks!

EDIT: may I also ask the significance of 791-RC1/4-470JB? I dont know the brand and it seems to be just one on the output of the second OP. I've got some Ohmite same specs, are these 'better'??
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Old 13th February 2019, 11:30 PM   #4094
rjm is offline rjm  Japan
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Kemet caps can be upgraded to audio film cap of same or similar value.

Red resistors would be PRP. The build quality is relatively poor, I don't recommend them. The black Welwyns were nice, but are long gone.

791-RC1/4-470JB is a 47 ohm carbon comp. resistor. I prefer carbon comp in that position, but I don't care about the brand. The BOM one is made by Kamaya, perfectly fine.
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Old 14th February 2019, 07:38 AM   #4095
daemonsgr is offline daemonsgr  United Kingdom
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I see some black Welwyns on mouser?!

Thanks a lot!
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Old 14th February 2019, 01:43 PM   #4096
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Heh... you're right! They were discontinued from Partsconnexion years ago, so I thought they were no longer being made, but they appear to be still available at mouser.

The RC55 series are the ones you want. see for example 66-RC55LF-D-1.0K
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Old 14th February 2019, 02:19 PM   #4097
WntrMute2 is offline WntrMute2  United States
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I've built a VSPS and a couple of Phonoclone-3s. I'm planning on adding another TT and might need another phono-stage. I'd like the option to run low output MC, MM as well as an SPU cart. Does the Emerald fit the bill here?
Any opinion on Kiwame brand resistors?
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Old 14th February 2019, 02:40 PM   #4098
daemonsgr is offline daemonsgr  United Kingdom
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Quote:
Originally Posted by rjm View Post
Heh... you're right! They were discontinued from Partsconnexion years ago, so I thought they were no longer being made, but they appear to be still available at mouser.

The RC55 series are the ones you want. see for example 66-RC55LF-D-1.0K
thanks! Ill check them

(when it comes to black colour snake oil, Im in... just for the looks! within reason ))
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Old 15th February 2019, 02:35 AM   #4099
rjm is offline rjm  Japan
Richard Murdey
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Quote:
Originally Posted by WntrMute2 View Post
I'd like the option to run low output MC, MM as well as an SPU cart. Does the Emerald fit the bill here?
Any opinion on Kiwame brand resistors?
Yes, the Emerald has the MM/MC switch built in.

No particular opinion on Kiwame... never used them. They are a small Japanese audio-specific brand, as I understand it, bu I can find no evidence from Japanese search engines that such a company or product exists... they only seem to be sold through HiFi Collective, that kind of place.
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Old 15th February 2019, 02:46 AM   #4100
Salas is offline Salas  Greece
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They are KOA Speer CF power type

SPR | KOA Speer Electronics
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