New D-lator build with pictures

[airniles]

Here are some pictures of my latest build, the D-lator.

I used a 19 inch case from "Conrad" here in Europe.
And for the tranny, I used a Ring-core version from "Amplimo" (a special version for tube amps).
I did this to get rid of the "rear bulge" like on the real D-lator.
Also the ring-core trannies have a very small magnetic field disturbance and are very flat so that they can fit easily into a 1 HE 19inch case.

The D-lator sounds very natural and open with my 100W ODS.

The only disadvantage is that I have to put the master volume from my ODS at max to interface correctly with the D-lator.
This is because the master volume becomes a effect send volume, as soon as both jackplugs are inserted into the send and return.

Maybe I will modify this later.

[rob@tele]

Which amplimo transformer did you use?

[mat]

Very good looking build ! Congrats !

Btw. How did You do the lettering ?

[airniles]

Hi Rob@tele,

I used the 1N242 trnaformer from Amplimo.
It costs around 35,- euro.

The only thing is that the filament power needs to be connected via a series resistor (2,2 Ohm / 3W)
This is because the filament section of the transformer is designed for more than just one preamp tube.
Therefore the filament voltage becomes something in the neighbourhood of 10 VAC ..... which is of course to high for a 12AX7.

[airniles]

Hi Mat,

Thank you very much!

I used the transfer lettering from 3M and Letraset ( http://www.letraset.com/manga/shopdispl ... +Transfers )
For the dot's around the adjustment knobs I drilled a small hole and filled it with white paint (like it is done on the real D-lator)

After I finished the lettering and the dot's, I sprayed the front- and rear panel with a clear lacker spray to fix it.

[erwin_ve]

Hi Airniles,

That's very nice; a modified powersupply for a european d-lator.
I'm very much looking forward to a meeting

Are those big filter 330uF caps necessary with a bridge rectifier?
With my calculations a 20uF should be suitable.

Grtz Erwin

[mat]

Hi Mat,

Thank you very much!

I used the transfer lettering from 3M and Letraset ( http://www.letraset.com/manga/shopdispl ... +Transfers )
For the dot's around the adjustment knobs I drilled a small hole and filled it with white paint (like it is done on the real D-lator)

After I finished the lettering and the dot's, I sprayed the front- and rear panel with a clear lacker spray to fix it.

Thanks for the explanation, the lettering looks real pro imho !

[airniles]

Hi Erwin,

You have completely right, 2 X 330uF is a bit oversized!

But I had these two caps in stock and my experience is that 22uF is a bit to small!

Most of the time, the net voltage is floating a bit (from 220 to 230 VAC).
And with these caps the supply voltage is more stable and less sensitive for transient spikes and short voltage drops.