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Favorite 300B: Sophia vs KR


Which do you prefer; S.E.T. Princess 300B Carbon Plate or KR 300B WE Clone?

I've only experienced NOS 40's/50's WE so my expectations are pretty high. Which do you think captures the essence of the WE most closely? I'm trying to keep the cost down as much as possible so EAT is not an option, as much as I was blown away by their KT88. I considered current WE but they're not in production until Spring 2011.

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sakahara
swampwalker's avatar
swampwalker
5,138 posts
 
Markus1299- Very interested in your results. I will tell you that I really liked the BT CV181s in place of the VAC branded 6SN7s.

Phaelon- Good idea, I should have thought of that. I do know that Kevin says that the tubes must be fully WE original spec compliant and I THINK he told me that mesh or carbon plates were not recommended.
pdreher's avatar
pdreher
1,223 posts
 
Pretty certain carbon plate (not mesh) is the way you need to go for REN's. Keep in mind, Wavetrader had REN 140's and the standard Sophia Princess carbon plates had three or four of the 16 tubes fail within 2 years (outside the warranty period).
swampwalker's avatar
swampwalker
5,138 posts
 
OK, my vendor for the Shuguang BTs says he has 2 quads; one w plate current 48 mA, one w plate current 80 mA. Any thoughts on which might be best in terms of reliability/compatability w the Ren circuit. Kevin said he needed more info on measurement conditions which I am trying to obtain. Totally ignorant on any of this "ee" stuff so any help you can provide would be greatly appreciated.
pdreher's avatar
pdreher
1,223 posts
 
80 mA.
swampwalker's avatar
swampwalker
5,138 posts
 
Pdrehr- Got a response back from Kevin saying
We have one customer running the Treasure tubes in a pair of Signature 140's. If I remember correctly, the tubes labeled in the 70's will occasionally trip the 300B Sentry protection circuit. If that is correct, then perhaps the "48" tubes would be the better bet.
Comments anyone, before I order? Not trying to start a war, I am truly ignorant on these matters.
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