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Best 845 tube out there?

I am running a pair of Cary CAD-211AE monoblocks with the standard no-name Chinese tubes shipped by Cary. Whilst I am happy with the sound, I think I should buy a pair of 845's to keep as backup in case something happens to these tubes.

Because I will need to buy FOUR of them, this rules out any tube that sells for stupid money (e.g. vintage RCA 845 tubes).

The only current production 845's I am aware of are:

- Shuguang 845 "standard"
- Shuguang 845B
- Shuguang 845C
- Shuguang PSVANE 845
- KR Audio 845

I have found reviews of the Shuguang 845B and 845C, but there is virtually no information out there on the new Shuguang "psvane" 845. Has anybody heard this valve, and is it a noticable improvement over the 845B and C? Also, what do people think of the KR?
amfibius

Showing 5 responses by hifi223

hifi223
26 posts
 
UPDATE ON TJ 845.. WARNING !! DO NOT TRY THEM... my matched Quads did not work...
I will now have to stick with the PSVANE 845.
I don't think the TJs are same spec as RCA anymore.
hifi223
26 posts
 
Just to let everyone know that the latest TJ Full music 845 tubes are same specs as shuguang 845, 845B or RCA tubes. so, they can be use for direct replacement on your 845 amps. Quality is a lot better than the PSVANE 845T, which i'm also testing.
hifi223
26 posts
 
Hi Amfibius, i have also one mis-aligned PSVANE 845T out of 4 from Grant,. and the base on the tubes are not as shiny as you see on the photos, it looks more like corroded tubes..Very good sounding tubes as compare to 845B. Highly recommanded to anyone ..Will also be trying the latest TJ 845.
hifi223
26 posts
 
Hi Brf, i had 4x TJ 845 to try or test (i'm a TJ dealer in Australia). They were going into my melody custom Mono Blocks.
Tj 845 didn't last 5 seconds on my monos, one pair were really noisy, making crackling poping noise, they other pair blew-up straight away, also blew fuses on my amp. I'm still waiting for my supplier in Hong Kong to reply to me, i suspect they are not RCA specs as claimed. So, back goes the PSVANE.!
hifi223
26 posts
 
Yes they did, just notice it, definately not RCA spec, the filament current (iF) is at 2.5mA. RCA spec is 3.25mA.
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