Dumbelator

[dcribbs1412]

Thanks Tony
I'm gonna try and voice 2nd dlator a little different.

Darin

[67plexi]

I'm at the wire stage now the coax I have is RG188 24AWG or 20AWG inner core stranded.
Both Coax are 50pf per foot.

[67plexi]

Going with the 20AWG coax

[67plexi]

More

[Structo]

Lookin' good Steve

[67plexi]

It works well

B+1 340 volts

Pin # 1- 250 volts

pin # 3- 30 volts

Pin # 6- 230 volts

[67plexi]

[M Fowler]

Steve,

Nice job on your d'lator.

Mark

[M Fowler]

I bought one of these button PT's to use for a rack preamp project but wouldn't this work for a d'lator?

http://tubedepot.com/tr-pw-13.html

http://site.tubedepot.com/pdf/button_xformer.pdf

[martin manning]

I bought one of these button PT's to use for a rack preamp project but wouldn't this work for a D'lator?

The 200VAC secondary voltage is too low. You need more like 260-270.

[M Fowler]

I bought one of these button PT's to use for a rack preamp project but wouldn't this work for a D'lator?

The 200VAC secondary voltage is too low. You need more like 260-270.

I;ll use it for a preamp then, thanks.

[Smitty]

http://www.tubesandmore.com/products/P-T442

I like these. Used it in a two 12ax7 preamp I built for Chris Maresh. Shows up in a lot of EJ live videos.

$15

It lays down on its side and fits inside a 1U nicely.

I regulated it like this:

http://www.atwaterkent.info/Images/LR8N3RFh.gif