Shuguang 805 - Advice

[FullRangeMan]

Hi,
Someone have the Shuguang 805 datasheet? Could post here or send me in a PM or post a Link?
I do not find it on Google.
Also I would like your opinion about the Shuguand 805 Top Plate Cap model, in regards sound quality and reliability etc...
The 805 also have the Shuguang 211/845 micro-crack on the plate, know as whisker-noise??
Thanks for your input,
Gustavo

 

[djmiddelkoop]

maybe this helps ( scroll to the bottom ) :

ming-da

 

[FullRangeMan]

Dear Djmiddelkoop,
Very thanks for this Lampizator link. Good info about the 805 sound.

Iam impressed with that Ming Da 805 amps Mr.Fikus tested, looks the greatest praise I read to date to a chinese amp.
Lampizator inform the price of 1490 US dollars(pair) for the Ming Da MC3008A monoblocks, I sorry to inform the manufacturer of this amp
(Meixing MingDa) already raise the price to 3.800 US dollars/pair, more than 100 percent increase. GULP !!

If anyone have the Shuguang 805 datasheet, please inform.
Thanks, Gustavo

 

[FullRangeMan]

Just found the Shuguang 805 datasheet, no PDF file though, Iam post it here in plain text.
With this data on hand I wish ask to tubes experts, if this Shuguang 805 are a reliable and easy to drive tube.
Thanks for your input, Gustavo

Product appellation:FU-5/805
Product price: publicize in DIY
Product habitus: HOT SALE
times:310
date: 2005-3-30
Product depiction: 805(FU-5)

Straight heating thorium-tungsten cathode triode 805, can amplify the power of B series,
A-F and R-F, and can amplify the power of C series and R-F and high frequency surge.
805 is the same with GL-805, and can be exchanged each other.

filament heating
Uf …………………………10 V
If…………………………3.25 A

capacitance between poles
input capacitance……………………8.5 PF
output capacitance……………………10.5 PF
transroute capacitance……………………6.5 PF

limit rating
plate voltage……………………1500 V
plate dissipation power………………125 W
working frequency and plate voltage when working frequency is higher than 30MC, the output
power of plate voltage and anticathode will adjust low according to the below table：
frequency(MC) 　plate voltage and anticathode input power
　　　　　B grade electrode C grade telanticathode modulate telex
　30　　　　 100%　　　　 100%
　45　　　　 90%　　　　　 82%
　80　　　　 71%　　　　　 55%
commend working state(reference value)
B series A-F power amplify(two tubes) limit value
Ua………………………1250 1500 1500 V
Ia(max.sig.per tube)……………210 mA
Pa(in)(max.sig.per tube) z……315 W
Pa (per tube) ………………………125 W
Ug……………………………………-16 V
üg(pk)…………………235 280 V
Ia(0)……………………148 84 mA
Ia(max.sig)……………500 600 mA
Pd…………………………6 7 W
RL(a-a)……………………6.7 8.2 kΩ
Pout(max.sig)…………300 370 W

B series R-F power amplify
(on carry wave condition, each tube's maximum modulate coefficient is 1.0)
limit value
Ua………………1250 1500 1500 V
Ug…………………………-10 V
Ia………………135 115 150 mA
Pa(in)……………………………………185 W
üg(pk)…………70 70 V
Ig………………15 15 mA
Pd………………11 7.5 W
Pout……………55 57.5 W

C series R-F power amplify and surge(anticathode modulate)
(on carry wave condition, each tube's maximum modulate coefficient is 1.0)
Limit values:
Ua………………1000 1250 1250 V
Ug………………-155 -160 -500 V
Ia………………160 160 175 mA
Ig………………60 60 70 mA
Pa(in)……………………………………220 W
Pa…………………………………………85 W
üg(pk)…………295 300 V
Pd………………16 16 W
Pout……………110 140 W

 

[ja2dhc]

The below URL shows a phot of Shugang's 805A and 805(FU5).

http://ja1cty.servehttp.com/805/FU5vs805A.jpg

 

[FullRangeMan]

This image are the new 805BSE used by MING-DA in his amps. I was told it is made by Shuguang by special order from MING-DA, on the other hand I read in a chinese online shop, the 805BSE maker are Star Electronics(SE), but I translated this Cantonese text on the Google.
Can someone confirm or deny these information above?
The others Ming-Da 211 and 845 amps also use this new bottle, the metal base and pins are gold plated.

An externally hosted image should be here but it was not working when we last tested it.