Tube DIY Asylum

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

Use this form to submit comments directly to the Asylum moderators for this forum. We're particularly interested in truly outstanding posts that might be added to our FAQs.
You may also use this form to provide feedback or to call attention to messages that may be in violation of our content rules.

You must login to use this feature.

Inmate Login

By default, logging in will set a session cookie that disappears when you close your browser. Clicking on the 'Remember my Moniker & Password' below will cause a permanent 'Login Cookie' to be set.

Moniker/Username: The Name that you picked or by default, your email. Forgot Moniker?	Examples "Rapper", "Bob W", "joe@aol.com".
Password:	Forgot Password?
	Remember my Moniker & Password ( What's this?)

If you don't have an Asylum Account, you can create one by clicking Here.

Our privacy policy can be reviewed by clicking Here.

Inmate Comments

From:
Your Email:
Subject:

Message Comments

Original Message

RE: good push pull 2A3 design schematic

Posted by TomWh on September 17, 2017 at 14:59:56:
Vinnie if you can spend a little money now might be a good time to pick up a couple of interstage transformers. In a push pull they do 4 things I really like: choke load, low voltage drop, phase splitter, and no coupling cap.

Not sure if Dave below is using that set up on his pp 300b but he could wind you some killer units to get the job done with various tubes so you could bread board different amps. On the cheap Hammond makes some units which Andy has played with some success.

Audio design guide on the web has a ton of schematics. Look at the parts count on a interstaged 2 stage pp amp. You could clip board one up in a few hours. Keep up the good fight.

Enjoy the ride
Tom