Building D'lator out of Vox Lil night train

[beasleybodyshop]

So, I just finished my 102 Dumble build - after some HF taper tweaks, I am really digging the bright tone! I figured I would go all the way and build a Dumbleator for it, something that I could set inside the headbox and build a breakout IEC connector for it so I would not have to run an additional power cable.

A friend of mine gave me a Vox lil night train that was DOA...So im thinking i can use the transformer (has windings for heaters and 300V B+ AND i have a little Fender Blues Deluxe choke that coincidentally fits on the chassis as well. Its gonna be tight, but i think maybe i can squeeze a dumbleator inside this thing using the PT. The best part is it already has a power switch, indicator, and built in IEC fuse.

My guess is that I can make this work with terminal strips...Anyone see any issues or pitfalls with this setup? I understand that using shielded cable throughout is the best, which i will do, but It will be my first D'lator build. Will keep everyone posted!

[beasleybodyshop]

Is there an advantage to using a choke in a dumbleator? Does it improve noise rejection?

[Structo]

It serves as another filter component that helps smooth the DC out.

I used one in my D'lator since it was cheap and room for it was available.
It can only help.

Gil Ayan recommends a choke in the D'lator.

[jam-mill]

Is there an advantage to using a choke in a dumbleator? Does it improve noise rejection?

Perhaps this will provide some more insight about using a PI filter (http://www.valvewizard.co.uk/smoothing.html).

-jack

[Charlie Wilson]

Since we're at it, I built my first couple of Dumbleators without chokes and with AC filament supplies. Out of boredom, at some point, I "upgraded" both of my personal units with a choke (generic Fender Champ, I think), and I changed the filament supply to regulated DC. Well, doing that entertained me to a couple of hours and set me back about $10, but it didn't change anything at all. The D-lator clones were almost dead quiet before the change, and just as almost dead quiet after.

Cheers,

Gil

Hello,
I found this post from Gil. I am working on two Dumbleators so this is of interest to me. Maybe Gil has changed his mind?
CW

[M Fowler]

You can select the quote button to the right of a post to get this:

Since we're at it, I built my first couple of Dumbleators without chokes and with AC filament supplies. Out of boredom, at some point, I "upgraded" both of my personal units with a choke (generic Fender Champ, I think), and I changed the filament supply to regulated DC. Well, doing that entertained me to a couple of hours and set me back about $10, but it didn't change anything at all. The D-lator clones were almost dead quiet before the change, and just as almost dead quiet after.

Cheers,

Gil

Or select a passage from a post and paste into your reply then highlight the passage then select Quote button from above to get this.

Hello,
I'm still trying to figure out how to use the quote function but I found this post from Gil. I am working on two Dumbleators so this is of interest to me. Maybe Gil has changed his mind?
CW

[Charlie Wilson]

Thanks M Fowler. (I was having some trouble with the quote function)
CW