Tube DIY Asylum

I can't read the type number...

87.245.73.97

In Reply to: RE: Using a regular OPTX in an UL schematic posted by Audiodyssey on November 02, 2009 at 23:27:06

...of your output tubes, but if they are KT88 then you can run the screens at the same voltage as the anode supply.

Regulating the screen voltage will make it sound better, but that's a more advanced projectthan just getting an amp built.

Second point - that circuit is a rippoff from the GEC KT88 application note circuit circa 1955, and I've never liked the sound of it because the phase splitter adds an extra tube to the "lower" half compared to the "upper" half. Build it , listen to it and then maybe you'll be interested in finding some better phase splitter circuit.

Regards, Allen

Follow Ups:

RE: I can't read the type number... - Audiodyssey 17:50:53 11/03/09 (0)
RE: I can't read the type number... - Eli Duttman 08:08:03 11/03/09 (0)

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

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.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.