Home Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

RE: if 7B4 is the best driver tube for SE DC 2A3 ...

Good observations. For preamp use, Low-Noise tubes
are chosen. Anything special about "low noise" tubes?

The plates are shorter! The less area, the lower the microphonics.
(and incidentally, the lesser the musical dynamics-- if all else is equal).

I'll be leaving operating points to the user of any tube-- it's
his amp, not mine....

I love tubes that have a large surface area and low operating currents, and low thermal stress levels.

Lots of dynamics VS distortion levels. Of course, all tubes are
microphones in one way or the other. As always-- there are degrees of trade-off.

Thanks for pointing out your observations to all of us!


This post is made possible by the generous support of people like you and our sponsors:
  Signature Sound   [ Signature Sound Lounge ]

Follow Ups Full Thread
Follow Ups
  • RE: if 7B4 is the best driver tube for SE DC 2A3 ... - tube wrangler 22:54:33 03/01/17 (0)


Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.