Home
AudioAsylum Trader
SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

For Sale Ads

FAQ / News / Events

 

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


Login to access features only available to registered Asylum Inmates.
    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: Hey Tre!

Posted by Tre' on June 26, 2012 at 18:15:54:







A friend of mine built this with the help of Dennis, etc. The component values were all given to him.

I ask Dennis over the phone what the differences were between this circuit and his and he wouldn't really say. He did say that he uses multiple small by pass caps on the cathodes. My friend used only one but he used the right brand and the right size main cathode bypass caps.

Dennis complained that the current was a tiny bit to high in both the driver tube and the output tube and that the voltages were a tiny bit (and I mean a tiny bit) too.....I can't remember, I did take notes, I will have to see if I still have them.....well, high or low.

What he did say lead me to believe that it was very (my word) close.

When push came to shove Dennis said that 1" of the wrong wire will ruin the whole amplifier???!!!

I had it here for a few days. I circuit traced it and drew these schematics myself.

It's sounded awful.

On the test bench the PS was unstable even when not playing and the HF rolled off starting at 11kHz. Dennis has said (here on the AA) that his amp starts to roll off at 15kHz. He said the tubes he uses have less Miller capacitance than NOS. Dennis said (here on the AA) that his amps will start to roll off at 11kHz with Sylvania NOS 2a3's and 9kHz with RCA.

Tre'