point to point D-lator build in hammond rack chassis

[Funkalicousgroove]

I use a 250K, I supose you could use a larger pot if you like.

[angelodp]

Just double checking that the jumpers look ok here. I have the jumpers marked in RED, WHITE ( bus ) & Yellow

I mirrored the blue jumper diagram so its easier to transpose.

[IMG:759:259]http://i260.photobucket.com/albums/ii9/ ... rror-f.jpg[/img]

[erwin_ve]

Hi Funk, It's really great stuff you posted here. I'm a european guy and the right transformer seems to be unfindable here.
So I'm recalculating for an other transformer. 120 or 150 on secondary.
How do i calculate the greinacher voltage doubler? It is not exactly double i suppose?

[Guitarman18]

erwin_ve wrote:

I'm a european guy and the right transformer seems to be unfindable here.

Funk has trannies available to buy, and I know for a fact that a short while ago he had 230v ones also. (I bought one). It makes the rack mount build much easier having the correct tranny.

[erwin_ve]

erwin_ve wrote:

I'm a european guy and the right transformer seems to be unfindable here.

Funk has trannies available to buy, and I know for a fact that a short while ago he had 230v ones also. (I bought one). It makes the rack mount build much easier having the correct tranny.

I give it a try with a stock tran available over here in europe. When I know the output of the voltage doubler its easy to recalculate the resistor value's to match the proper voltages according to the schematics in this topic.

[Funkalicousgroove]

It is 135-0 VAC

[Gitarrmongot]

Hi erwin! I'm also from Europe (Sweden). Have you found a tranny yet? I'll
be interested in where you got one. I'm also into doing some soldering. Did a
d'lite built and desperatly needs a *elator. I've now been out gigging for a month and in the current setup I'll split my signal and use a princeton and a lexicon as a 'delay' generator. It would be a smaller setup if I could utilies a dumbelator for sure!

[erwin_ve]

Gitarrmongot: I found a tran at Tube Amp doctor in Germany. I think it will do the job.
The output voltage is not the same(150-0) but some recalculating the resitors on the voltage drop string does make the right voltage.
I'm gonny give it a try.
But right now I'm occupied with something else(Kleinulator) and have a 2 week tour upcoming, so no building right now.

[Motörbööt]

Hi,

for european builders look at http://www.experience-electronics.de/en ... #ntr17%201

NTR-17/1

Power 12 VA
Secondary
140 V/30 mA, 9V/0.8 A
Core MD 42
Core size 42 mm x 55 mm
Height 35 mm

Datasheet: http://www.experience-electronics.de/en ... ENTR17.pdf

About 40,00€

Greetz

[erwin_ve]

A question: At the moment I am building a d-lator; at the first picture in this topic there are 2 resistors at the cathode bypass cap.
Schematics show; 1.3k The picture shows a 2.7k resistor. Is the other parallel resistor also a 2.7k resistor? I suppose to get close to the 1.3 K?