I agree with Jim, go with NOS Sylvania and Tung Sol (harder to find). Don't bother with the Philips, you can do much better for low $$. Also, 5931 is a great military replacement for the GB, but kind of scarce. My amps use four GB's and I've found the Sylvania GB to be superior to even the earlier 5U4G by far. I'm stocked for life and could spare several if interested. It's the best place to start listening. I can give you an idea about upgrades later too. Had a pair of 300B mono's previously and did the experimenting with same results. Drop me a line. Paul, triode6sn7@hotmail.com
Which best 5U4GB rectifier tube- Mesa Boogie or ??
New to tubes here and have a pair of 300b SET 8w monoblocks. I'd appreciate your learned opinion of which of two rectifier tube choices would be best. And if you could tell me what differences might be hearable between the two, all other things being equal, it would be appreciated.
The tubes I have are (1st) new Mesa Boogie 5U4GB and (2nd) used PhilipsECG 5U4GB. The Philips lable looks like this:
JAN 5U4GB
PhilipsECG 8652
34167 USA AAX
Your comments are appreciated.
Happy listening!
The tubes I have are (1st) new Mesa Boogie 5U4GB and (2nd) used PhilipsECG 5U4GB. The Philips lable looks like this:
JAN 5U4GB
PhilipsECG 8652
34167 USA AAX
Your comments are appreciated.
Happy listening!