Burning Amp BA-3b (Balanced)

[6L6]

buzzforb - I know it was a joke...

The real problem lay in the fact that at this point I truly do want to build a number of the various topologies to see what they all sound like. That's why I'm building an Aleph... it should be a good contrast to my F5.

It would be a fantastic day to get a small bunch of people together in a good listening room with a bunch of different amps and 1 or 2 good speakers and mix n match and see what everybody thinks of the various topologies.

[generg]

Originally Posted by juma

You're killing me !

It's all in the F5 article - common Source, common Drain, common Gate topologies, explanations and drawings...

Just remember that every FET with 2SJ prefix is a P-channel and every 2SK is a N-channel device.

Few simple things more:
- every N-ch device has its Drain more positive than the Source in order to work
- N-ch depletion mode device (f.e. JFET, like 2sk170) will not conduct the current only if its Source is far more positive than its Gate
- N-ch enhanced mode device (f.e. HEXFET, like IRF610) will conduct the current only if its Gate is more positive (few volts) than its Source

-With P-ch devices everything is the opposite

I know...!

[Bksabath]

Originally Posted by 6L6

buzzforb - I know it was a joke...
It would be a fantastic day to get a small bunch of people together in a good listening room with a bunch of different amps and 1 or 2 good speakers and mix n match and see what everybody thinks of the various topologies.

I could try and ask at the Telford Wharehouse

Is a realy nice Pub Hazel O connor there soon.
Food is preaty good as well
and they have Budwar (the original one) on tap.

Most days music room is not in use..

Ops. it is in Chester UK

[pinkmouse]

Strange symmetry. The last get together was in Chesterfield.

[Zen Mod]

Originally Posted by rsdio

......

May I put on my image file format hat for a moment ....

may I put my Dunce Hat for a moment and say that any sort of file is good enough , when using it for good schematic ?



there are my two conversions , much neater in format , but I can't find them cleverer at all , than original one ........

[generg]

I would be interested in an explanation why it is useful that Papa connected the R5 in BBA-3 not to ground but together...?

[Zen Mod]

from same reason you can find that longer tail on LTP is increasing symmetry between halves ....

[generg]

thanks Zen Mod....

which parts are the longer tail....?

[Zen Mod]

ZM non comprende .....

you asking what's longer tail in LTP , or what's here analog to tail in LTP ?

[generg]

or what's here analog to tail in LTP ?

this would be fine....