Chong PS Boards Availability

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Chong PS Boards Availability

Postby Shannon Parks » Mon Dec 04, 2006 5:19 am

Can anyone point me to Cyrus Chong's eBay seller handle or somewhere else that I can contact him & get his boards? Many thanks!
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Postby TomMcNally » Mon Dec 04, 2006 6:59 am

Shannon -

Here is his listing - nothing for sale currently though.

http://search.ebay.com/_W0QQfgtpZ1QQfrppZ25QQsassZtubes4proQQssPageNameZSTRKQ3aMEWAQ3aMESOI

I have a new ST-70 cap board I bought to fix an amp for someone who never shipped me the amp, let me know if you want it (barter would be cool)

... tom
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Postby EWBrown » Mon Dec 04, 2006 7:04 am

He goes under the handle "tubes4pro", IIRC.


I just put one of his ST70 boards into the recently-begun "300B SET on an ST70 chassis" project. I got that board last year, so I don't know of his current product availability.

Would have gotten more done on that this weekend, but mother nature and PSNH (AKA New Hampshire Flicker and Flash) conspired to leave me in the dark for much of the weekend...

/ed
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Postby jeffdavison » Mon Dec 04, 2006 8:20 pm

I have some recent correspondence from him as I want to order another cap board from him, He's on vacation and will be back on the 8th

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Postby jeffdavison » Fri Dec 08, 2006 9:11 pm

He's back. Up and running on eBay as we speak!

Good people to deal with!


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Postby Shannon Parks » Sat Dec 09, 2006 6:48 am

Thanks for you help, guys!
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Postby Ty_Bower » Fri May 16, 2008 7:13 pm

Stumbled across these C Chong cap boards recently. I spotted his version for the Mk III. It seems to offer a little more than what you get with the SDS cap board. The fuse holder and bias supply are built into the C Chong, while the SDS doesn't have them. Does anyone have an opinion one way or another? Which is the "better" board?
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Postby jeffdavison » Sat May 17, 2008 9:30 am

The Chong PCB board is better quality, looks like it was profesionally manufactured and is 2 sided and the layout is extremely well thought out.
The SDS board looks home made and etched and rough fiberglass around the edges, like multiple boards from one sheet and cut into many. Quality seems ok for use but rather crude in comparison.

The Chong board is also more compact.


imho... Chong is the way to go.

just a little pricier, but still not expensive at all.

Chong comes pre-stuffed only, SDS comes stuffed, as a kit, or board by itself.

This is comparing the cap ST70 boards, I'll assume the MKIII are very close.

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