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

Finally ........... it's done.

Posted by vinnie2 on May 30, 2017 at 08:28:03:

It has taken me forever to actually build the front end for my triode connected 26/813/813 SE amp. I have had to fit the work in when time was available and also had to do a lot of head scratching and planning to make all the parts fit in the old chassis that once was the front end of my 91A clone. The chassis is a matching one for the psu. I built them both out of some solid black walnut I bought some years back so I wanted to keep it.
Anyway, as you can see from the attached under the hood photo, there is not a lot of extra room in there. It is in about 3 layers, and it required that I use a sub-assembly approach for putting it together. I took each tube socket and soldered on all the parts and wires that would be attached to it before I mounted them on the chassis. When they all were finished I started with the lowest layer (closest to the top plate) installing them and making connections, and worked my way to the highest layer. The highest layer of course is the one closest to the bottom of the chassis. It worked rather well, and I think on any future builds I will use the same approach if I have to work in a tight area.
I was a bit worried about hum with everything so close together, but all the filaments are dc and that seemed to do the trick. Dead quiet as far as I can tell, except for an almost inaudible buzz when my ear is literally against the speaker.
I really like the sound, so I guess it was worth all the time and effort. If you are looking for a great sounding tube for an SE amp, don't forget to check out the triode connected 813 and 26 combination.
ps
Forgot to mention that I was able to use the psu without modification. That really helped. Remember to recycle I always say!