Eddie Current Balancing Act
Mar 18, 2013 at 8:00 PM Post #1,158 of 1,499
Has anyone run into this? The screws that hold the 300b tube sockets sit a little higher than the top of the ECBA case. I recently purchased a pair of Royal Princess tubes that do not seat well because the base of the tube hits the screws. I was isolating a noise and tried switching the 300b's but only 1 channel would work. The other wasn't making a good enough contact but worked fine when I reversed them again.

If I tighten the screws further, they would probably dimple the top of the case and possibly allow for a better seat. I am a little nervous about overtightening the screws and stripping them.

Other solutions I have considered are finding screws with smaller heads (probably difficult) or finding an adapter with a smaller diameter base that would fit between the screw heads.

Has anyone dealt with this and found a good solution?

Thanks
 
Mar 18, 2013 at 9:15 PM Post #1,159 of 1,499
Those princess tubes must have a really wide base because my px4 probably have about 4mm between its base and the edge of the screw.
 
Mar 19, 2013 at 12:11 PM Post #1,160 of 1,499
I believe the earlier versions of the BA have tube sockets that sit flush with the top panel of the amp. The newer production versions of the amp have sockets which protrude through the top panel. I'm assuming this change was made for the exact reason you're describing. Maybe Craig (or someone else DIY handy) could swap out the tube sockets for you.
 
You can see the white part of the tube socket protruding above the top panel here:
 

 
May 15, 2013 at 11:08 AM Post #1,161 of 1,499
I'm working myself up to order a ECBA real soon.  Does anyone have suggestions as to the configuration (options) that would sound good with classical / jazz / vocal ?
 
Many thanks,
 
Rich
 
 
OK then . . .  !  
darthsmile.gif

 
Jul 24, 2013 at 11:13 AM Post #1,162 of 1,499
Anyone have a chance to compare the 2A3 to the BA?
 
Sep 10, 2013 at 7:18 AM Post #1,164 of 1,499
Sorry I can't answer with comparable experience but my PWD Mk2 outputs 2.8v and provides plenty of headroom to my LCD2's. The amp is stunning.
 
Sep 13, 2013 at 9:35 AM Post #1,168 of 1,499
Has anyone tried an ECC40 (with adapter) in the ECBA in place of the 6SN7 ?
 
Oct 16, 2013 at 11:53 AM Post #1,169 of 1,499
Does anyone notice that the BA has the new version?
 
It seems Craig has changed the transformers, it provides better bandwidth now.(new:-1dB 11Hz, and 40kHz ; old: -1dB 15Hz, and 35kHz.)
 
HAS anyone already heard the new one?
 
Oct 22, 2013 at 6:37 PM Post #1,170 of 1,499
Yes, new transformers from Cinemag. I'm going to try to get my hands on one for the San Diego meet. Supposedly it sounds better.
 

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