Know nothing, wanting to learn (RTD1 Live)

Re: Know nothing, wanting to learn (RTD1 Live)

Made the box today, think it's got a nice old look:

[Blockierte Grafik: http://img293.imageshack.us/img293/4167/p1000540mj4.jpg]

This afternoon i testfitted al the parts. It fits (when mounted in the right order)

[Blockierte Grafik: http://img299.imageshack.us/img299/2443/p1000538zu3.jpg]

Re: Know nothing, wanting to learn (RTD1 Live)

Project finished (and exploded ??? )

[Blockierte Grafik: http://img185.imageshack.us/img185/2326/p1000546xx6.jpg]

[Blockierte Grafik: http://img227.imageshack.us/img227/5652/p1000547em2.jpg]

[Blockierte Grafik: http://img175.imageshack.us/img175/530/p1000549yd3.jpg]

[Blockierte Grafik: http://img297.imageshack.us/img297/1954/p1000550uv2.jpg]

I put the power on it for 5 sec. to see the lights, than .... BANG!!!

Must be the elkos in the powerpart of this project, i think.

Re: Know nothing, wanting to learn (RTD1 Live)

Zitat von Horstelin

I would make the bail a little smaller and fastening on both sides...
Anyhow it looks perfekt ;D

What's a "bail"? The thing over the tube? I have just enough space to remove the tube without tools. Works fine like it is.

Try it on my amp in the morning (it's to late now) Hope it was nothing (that explosion).

Re: Know nothing, wanting to learn (RTD1 Live)

This elko exploded (1000u/16v)

[Blockierte Grafik: http://img373.imageshack.us/img373/7161/p1000533al1.jpg]

(9V went in on the +side and the - side was conected to the mass (like it should, i think)

Re: Know nothing, wanting to learn (RTD1 Live)

Zitat von analogguru

As I could see in the photo you used 1N 4148 for the heating.

1N 4148 is rated at 100mA maximum. The PCF 802 needs 300mA current. So the diode willl be blown.

Exchange the diode in the schematic under your finger with a 1N 4001, or 1N 4004 or 1N 4007 and replace the electrolytic.

analogguru

No, i used a 1n5408.

Re: Know nothing, wanting to learn (RTD1 Live)

Picture of the 1000u/16 that has blown:

[Blockierte Grafik: http://img299.imageshack.us/img299/2443/p1000538zu3.jpg].

At the left the 9V ac > 1N5408 diode > 5w resistor > +side 1000u/V Elko - side > heizung rohre. Think the elko should be the other way around.

Re: Know nothing, wanting to learn (RTD1 Live)

Zitat von bajaman

I agree too - the diode is the wrong way around, but the capacitor is connected the right way.
Steve

Don't think so.

I tested the RTD on my amp. It works (with blown elko) If the diode was wrong conected it should do nothing i think.

It's got too much hum (probably the long cables inside) and the output is very high. Working on it.

Re: Know nothing, wanting to learn (RTD1 Live)

Zitat von elkulk

Maybe the foto you´ve postet misleads me. But it looks like the anode of the 1N5401 and the + of the 1000µ could be connected:

[Blockierte Grafik: http://forum.musikding.de/yabbse/index.php?action=dlattach;topic=9673.0;id=4307]

Yep, you are right. I´ll fix it tomorrow, and the hum will also probably disapear.

Me am stoepid ::)