6V6 line preamp

[Zen Mod]

3R3 parallel to series combo of (15R fix+12R pot)

 

[stajo]

Hehe.

PS ZM note that I'm using a proper BIC for relations unlike you

I have a box of other smaller somewhere, problem 1 will be to find them, problem 2 will be to find 2 of the same with suiting values.

But the big ones are neat eh? From Ericssons old testlab. Got a bunch of them

 

[flatheadmurre]

Thank you. I know I sound silly here, the VR must pass same current if its serialed with a 6R or a 12R, its just that Im using the few ohms of its full variable resistance with the 12R and somehow something tells me that it going to fry it.

Pen and paper, here I come. Thanks!

The total current going thrue the 3.3 and 12 are distributed so you get around .1 A through the 12R.

 

[stajo]

The total current going thrue the 3.3 and 12 are distributed so you get around .1 A through the 12R.

Thanks for being my pen and paper It payes to be chatty

 

[flatheadmurre]

I got 10R Colvern wirewounds i can put a couple in the mail.

If you fry them next step up in the parts drawers need a bigger enclosure

 

[stajo]

What if I also parallell the 100/200R pot with a, say 47R fixed. That would give me better use for its adjustments right (use more of its resistor lane or how to say)?

 

[Zen Mod]

........

alter R3 to 18R , if needed

 

[RCruz]

........

alter R3 to 18R , if needed

Cool

 

[stajo]

At Flatheads place, grabbing some gear. I love the countryside

 

[flatheadmurre]

There was some 10,12 and 18R resistors in the bag so you can test the different aproaches.

 

[stajo]

I noticed, thanks mate. Next time I'll stay a little more then 20 minutes. The coffee was good

 

[flatheadmurre]

I noticed, thanks mate. Next time I'll stay a little more then 20 minutes. The coffee was good

If you manage to carry out enough stuff my wife will treat you to a steak dinner next time .

I was just picking up a parcel down the postoffice that arrived from Russia so Stealthmode is on and i will try and sneak into the house unspotted.

 

[6L6]

If you manage to carry out enough stuff my wife will treat you to a steak dinner next time .

Come to Colorado! My wife would be very happy to see some of my stuff removed from the house! I will make steaks as well!

 

[stajo]

Sounds like a roadtrip

Now, wheres my perfboards?

 

[flatheadmurre]

Sounds like a roadtrip

Now, wheres my perfboards?

The Stajo 2013 tube world tour !!!

Hmm... it seem like a global problem to keep the law happy.

I have a cunning plan .

I`ll have the wife help me pack a large box of the good to have deluxe assortment and ship it off to another member......wife very happy......then the receiver after sneaking in and unloading the box does the same !

That way we will have happy wifes and new stuff to tinker with WIN-WIN !!

 

[stajo]

A voltage doubler on the 6,3 taps gives me 11,9 VDC over a 12R, so I guess I will go for a CSS right on that, no headroom for a voltage reg inbetween.

 

[flatheadmurre]

A voltage doubler on the 6,3 taps gives me 11,9 VDC over a 12R, so I guess I will go for a CSS right on that, no headroom for a voltage reg inbetween.

Don´t overengineer it do it as Salas original but with adjustable
resistance for the CCS.

 

[stajo]

I under engineer it

Salas takes the de lux trip with dual 10 V secondarys. I go poor mans road with a single 6,3

 

[Bas Horneman]

The PSU I use for my Salas 6V6. The first cap after the rectifier is an electrolytic on purpose.

 

[Bas Horneman]

The little chokes I use in the AC before the rectifier.