i'm on a roll... the kgsshv

[eggil]

Great, Thanks

[spritzer]

2SC4686 is EOL as well.  Fuckers... 

[eggil]

That really sucks. How can we continue to build as some parts become more and more scarce?

Megatron it is then!!  

I already started the hunt for that build. 

Edited January 15, 2013 by eggil

[shipsupt]

I should have looked harder... they were right under my nose.

 

I just ordered 25 from Bdent.  I was so surprised that they had them in stock after not finding them at a bunch of other suppliers that I called and he confirmed he has them.  I'm not sure how many he has, but if anyone is looking you might consider checking with him.  $4.95 each

 

I was also able to get the Toshiba 2SC2705's and 2SC1815's which were also showing obsolete on Mouser as well.

 

Of course I'm not counting chickens yet, not until I have them in hand, but I'm feeling better tonight than I did last night!

Edited January 15, 2013 by shipsupt

[spritzer]

If this trend continues then we are indeed looking at just tubes for high voltage use or stacking lower voltage parts.  One HV transistor that is cheap and easy to source is the Fairchild 5027 but the gate capacitance is quite high... 

[Victor Chew]

Mouser is out of 2n3904. The order page suggests replacement with  http://sg.mouser.com/search/ProductDetail.aspx?R=863-2N4401G

 

Has anyone tried it yet? The specs are almost identical except it can take higher current at 0.6A as supposed to the 0.2A.

[Pars]

2N3904s should be a very generic transistor... Fairchild or ON Semi should be fine? They seem to have all kinds of them.

 

http://sg.mouser.com/Search/Refine.aspx?Keyword=2n3904

[Victor Chew]

Thanks alot pars.

[spritzer]

Yeah this is a generic part so any manufacturer will do.

[Pixiy]

I am just wondering where can I find some lsk389s.

 

It seems that BDent is out of stock.

[livewire]

Here:  http://www.trendsetter.com/product-p/lsk389b%20to-71.htm

[Pixiy]

Thanks! I will try to get some.

[livewire]

You're welcome. What are you building? KGSSHV?

Edited January 19, 2013 by livewire

[Pixiy]

I want to build a headamp with HV's input state and T2's output stae, but I am not really sure how to do.

[kevin gilmore]

That's basically a BH

Kerry has a slightly different design with the kgsshv input stage,

The active battery and the t2 output stage.

[n_maher]

Anyone heard from Kerry lately?

[kevin gilmore]

Definitely alive and very busy with work.

Same with me.

Hopefully this will change for both of us

Soon

[JensH]

Err, which part of it would you like to change?

I hope you mean the work part

[wink]

"Definitely alive and very busy with work.

Same with me.

Hopefully this will change for both of us

Soon "

Hope this doesn't mean you'll be made redundant as I was at the end of November.......

[eggil]

Does that mean you will have more time to design amplifiers?

[wink]

No, just more time to finish the two KGSSHV's in between job-hunting.

[Pixiy]

I tried to pm to Kerry but he didn't reply. Maybe I need to do a new layout by myself...

[livewire]

Great idea!

[Kerry]

Definitely alive

 

I've been out of pocket, but will get back on the design over the weekend.

[n_maher]

Good to know you're still around, Kerry.  Don't be such a stranger.