[Rob N]

Yes it is a Brimar tube made by STC (Standard Telephone & Cables).STC started in 1883 as an agent for Western Electric

 

[XXII]

So am I right in saying that to use the Sophia or KR  PX-4 with the BA, all you have to do is change the voltage from 5V to 4V?
 
rosgr63: What power tubes are you using right now?

 

[markmaxx]

/img/forum/go_quote.gif



So am I right in saying that to use the Sophia or KR  PX-4 with the BA, all you have to do is change the voltage from 5V to 4V?




 




rosgr63: What power tubes are you using right now?

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You also have a switch in the back.

 

[rosgr63]

XII I am using EAT 300B and a TS BGRP driver.

 

[XXII]

I thought the switch in the back controls whether the preamp outputs are RCA or XLR?

 

[XXII]

Are there any general statements that can be made about the sound of px4 v 300b?

 

[rosgr63]

The EAT 300B compared to the KR PX4 have better defined mids and smoother lower end.
Together with the TS BGRP they make the SR325is sound excellent.

 

[vcoheda]

switch + voltage when changing tubes, not that i have done that yet.

 

[XXII]

Anyone try the Shuguang Treasure 300b?
 
My Balancing act will be arriving today! I have loads of 6sn7 to roll: Ken-rad VT231, RCA VT-231, Sylvania 6sn7gtb, RCA 5692, Sophia 6sn7,  Shuguang Treasure cv-181z, Brimar cv1988....but not the Tung-sol round-plate...are they really that good?

 

[markmaxx]

Quote:

Anyone try the Shuguang Treasure 300b?
 
My Balancing act will be arriving today! I have loads of 6sn7 to roll: Ken-rad VT231, RCA VT-231, Sylvania 6sn7gtb, RCA 5692, Sophia 6sn7,  Shuguang Treasure cv-181z, Brimar cv1988....but not the Tung-sol round-plate...are they really that good?

Don't you get the Western Electric 300b with the amp? TSRP, are that good.
 
Pic of the toggle switch. PX4/300b
 

 

[XXII]

Actually, it turns out I only get JJ300b due to a misunderstanding (which I guess partially explains the low price).
 
Vcoheda: What tubes are you using?

 

[vcoheda]

have yet to venture into other tubes, so just stock for the time being.

 

[rosgr63]

XXII you got an excellent deal, if I known somebody was going to sell their BA so soon so low I would have waited for sure!
And yes the TS BGRP are that good!
Just make sure you get a nice, strong tube, you won't be sorry.

 

[markmaxx]

Can you guys believe this!!!http://cgi.ebay.com/NEW-Western-Electric-300b-pair-tubes-WE300B-amp-/200538335181?pt=Vintage_Electronics_R2&hash=item2eb10427cd#ht_753wt_1139

 

[blubliss]

I'm gonna offer fiddy cents.