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Old 19th December 2007, 10:15 AM   #1
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Default New Production Shuguang Type 50 Tubes

Folks,

Anybody tried the new production Shuguang type 50 tubes yet?

http://cgi.ebay.com/ws/eBayISAPI.dll...m=120199553704

Disclaimer: no relation to the seller, just interested.

-- josť k.
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Old 19th December 2007, 12:35 PM   #2
SY is offline SY  United States
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That's pretty pricey. The workmanship on the pins would make me worried about workmanship on the internals...
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Old 19th December 2007, 02:08 PM   #3
arnoldc is offline arnoldc  Philippines
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These are selling for $36 each at mableaudio.com

Isn't it that Shuguang have problematic 2A3C and 845?
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Old 19th December 2007, 05:35 PM   #4
kevinkr is offline kevinkr  United States
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AFAIK their 845 is ok in terms of reliability, at least amongst the few I know who use it.

The 2A3C I can't say.

I have shied away from Shuguang tubes for years because of very bad experiences I had with their early 2000s vintage 300B.

Apparently they are now owned by Samsung and reputedly their quality and QC procedures are much improved. As the Romans said: Caveat Emptor, and as always YMMV..
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Old 19th December 2007, 06:03 PM   #5
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Quote:
These are selling for $36 each at mableaudio.com
The company mentioned above is one of the Chinese firms that persist in bombing my email box with spam in an attempt to get me to sell their amps, kits, speakers or whatever. Commercial messages containing high resolution pictures over a meg in size have resulted in the overflow of my inbox 3 times in the past few months. Do they think that interrupting my business will convince me to sell their Chinese amps? I don't think so!

Quote:
Isn't it that Shuguang have problematic 2A3C and 845?
I have one pair of their 2A3's which haven't seen much use, but I have tortured 3 pairs of their 845's and 2 sets of 211's and they seem to shake it off. I have cranked my original pair of 845's to 110 mA at 1200 volts without issue. There were a few early tubes that were reported to be noisy due to poor plate contacts, but that is supposed to be resolved. I never saw that issue.

I got one of the first sets of 845's. They must have been made before they got a good English translator because they are labeled " Election Tube" " made in Chian". They still work good though.
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Old 19th December 2007, 11:35 PM   #6
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SuperTNT has a factory tour of the Shuguang Plant
http://www.supertnt.com/info;k;32?

I've been using their 12AX7s with good success and want to try some of their power tubes someday. I also have some of their older 'Election Tube' 5AR4s - not exactly the best reliability-wise, but I've heard they have recently improved.
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Old 20th December 2007, 02:31 PM   #7
kevinkr is offline kevinkr  United States
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Quote:
Originally posted by tubelab.com


The company mentioned above is one of the Chinese firms that persist in bombing my email box with spam in an attempt to get me to sell their amps, kits, speakers or whatever. Commercial messages containing high resolution pictures over a meg in size have resulted in the overflow of my inbox 3 times in the past few months. Do they think that interrupting my business will convince me to sell their Chinese amps? I don't think so!



I have one pair of their 2A3's which haven't seen much use, but I have tortured 3 pairs of their 845's and 2 sets of 211's and they seem to shake it off. I have cranked my original pair of 845's to 110 mA at 1200 volts without issue. There were a few early tubes that were reported to be noisy due to poor plate contacts, but that is supposed to be resolved. I never saw that issue.

I got one of the first sets of 845's. They must have been made before they got a good English translator because they are labeled " Election Tube" " made in Chian". They still work good though.
Hi George,
You're not alone, unfortunately I get the same spam from them as you do, fortunately it has not caused any issues with my mail service, but it is somewhat annoying..

I too have seen tubes from Shuguang marked "Election Tube" and "Made in Chian" I think it is kind of humorous actually. Incidentally a Chinese friend tells me the name translates roughly as "Glows Brightly" - something I have seen with more than a few of their early KT88/6550.
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Old 20th December 2007, 02:36 PM   #8
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Hi Korneluk
Have ordered 2-type 50 tubes. My new Amp will be 5842 choke load-50 Tube IT-TX-GM-70. This is the only Way to see sound quality and Build and hope for the best. Still have one PSE 300B
for 2 years and one 3x6550 PSE for+- 3years all Shuguang Tubes
all working perfect.
regards
Rudi
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Old 20th December 2007, 04:57 PM   #9
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Quote:
Hi George,
You're not alone, unfortunately I get the same spam from them as you do, fortunately it has not caused any issues with my mail service, but it is somewhat annoying..
A little O-T but, you should be able stop all unwanted emails through your internet service provider. I use a small dial-up service and can block (black list) anybody or an intire domain. Plus I can set the level of aggressiveness on the spam filter and get a digest of what's been filtered each day. If your ISP can't do this, you need a new one. BTW, AOL and Yahoo are the worst ISPs.

Victor
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Old 20th December 2007, 07:51 PM   #10
kevinkr is offline kevinkr  United States
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Quote:
Originally posted by HollowState


A little O-T but, you should be able stop all unwanted emails through your internet service provider. I use a small dial-up service and can block (black list) anybody or an intire domain. Plus I can set the level of aggressiveness on the spam filter and get a digest of what's been filtered each day. If your ISP can't do this, you need a new one. BTW, AOL and Yahoo are the worst ISPs.

Victor
I have verizon and can block this spammer any time I choose, but since the black list has an upper limit on the number of addys I can list I save it for egregious spammers - besides these ones are entertaining. I can also configure the mail relay to kill this if I want. Worst case I will program the spam filter in thunderbird to delete it upon receipt - with a 250MB limit on my mail box I never loose email this way anyway.
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