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: 6V6 PP Line Amp/PPP Power Amp Schematics (Kondo HOH-OH)

Posted by awesterner on May 25, 2017 at 21:08:56:
I did push-pull-parallel ULTRALINEAR with similar tubes. In ultralinear, all you have to remember to get it to work right is do NOT neglect the screen resistor, use about 1K or 1200 ohms on each screen. This forces the tubes to power share appropriately and you will not need anode resistors. if you are doing it ultralinear, I can help you out. I have never built one any other way.
I only use Edcor and I would use 5K. for audiophile, it is okay to go a bit higher in impedance, it makes for better sound. for guitar amps, the opposite holds true. I made a 6V6 amp with the Conn organ schematic and hammond ultralinear 10K 10 watt transformers and it sounds good. I modded the schematic to use 6SN7 and can supply you all the proper values. it is a very simple build and works very well.