Transistor BF 494

[mettula]

i wish to ask again  :-[ :-[ :-[ i am not good in electronics  :-[ :-[ :-[ can i for the schematic  of veronica 1w pll pro use 2N2219 or 2N3553 or something equvalent instead of the BF494??? my local shop has nt  BF494 or BF 184 thanks a lot :-[ :-[ :-[

and can anyone suggest a page for transistor equivalent plzzzzzzz

 

[gogo2520]

Hello Mettula
  I am new to electronics too and understanding the difference in transistors is a project all in its own. I found the data sheet for the BF494 and will post it. And try to come up with something for. Boy wish I could find data sheets for my collection or transistors.
                          good luck
                                    gogo

42501001.pdf

 

[audioguru2]

Hi Gogo,
You can find most datasheets for old and new semiconductor products at www.datasheetarchive.com .

 

[gogo2520]

Thanks audioguru
            I will give a try. Right now I am in hot persuit of info on a power transister  SK  B1382. Just because I have one and I want to see what it can do. I hope that makes sense.
                                    Thanks gogo

 

[gogo2520]

I gave it a shot.
          Darn no luck, Its just a transistor I got out of a old printer, its in good shape but no info yet.
                                  Hmmmmmmmmmmm
                                    gogo

 

[audioguru2]

Maybe the power transistor SK B1382 is really a power Mosfet made by Toshiba with their part no. 2SK1382. The datasheet is available at www.datasheetarchive.com .

 

[gogo2520]

Thanks audioguru
    I didn't find it at data sheetarchive, but I did a search string on 2sk1382 and found the data sheet at
http://katalog.elektroda.net/indx450-2SK.html
  nice I got it. With your help
                                  Thank You
                                        gogo

e001347.pdf

 

[mettula]

But are SK B1382 and 2SK1382 equvalents of BF494? or as i said can i use 2N2219 of BF3553

 

[gogo2520]

No the 2sk1382 won't work. sorry but I will do some research tonight and see what I can come up with.
                                    gogo

 

[Staigen1]

Hi mettula

Where in the world are you living, the BF494 is one of the most common HF-transistors in the world! ;D

To gogo2520

The B1382 can be a 2SB1382,

 

[gogo2520]

Hello Staigen
    Your right about the BF494< I checked mouser and they have it for 20 cents.
        I check the data sheets on th 2SB1382 wow what a difference between it and the 2SK1382. The transistor Has SK under lined on top of the part number, So I am guessing that it was made by Sanken.
                                              Thank You
                                                  gogo

 

[Staigen1]

Hi gogo2520

"Japanese" makers usally delete the 2S in front of their transistors type-number! ???


//Staigen

 

[mettula]

Hi mettula

Where in the world are you living, the BF494 is one of the most common HF-transistors in the world! ;D


//Staigen

Staigen i live in Gozo a sister island of Malta - here few are in the rf field and many times for a school project or hobby we have to import components from abroad which makes projects expensive. some shops do provide help but sometimes this forum helps better  ;D ;D ;D

 

[Staigen1]

Hi

Do Gozo belongs to Malta? Malta? Isn't that EU? I can buy a pair of BF494 for you, and send to you in a letter.

//Staigen

 

[mettula]

THANKS staigen for your offer, yeah indeed  thanks a lot but i found a retired ex-army official and had a couple of BF494 which he sold me. Thanks again m8. and yes gozo - malta are an-eu country. YOU GUYS ROCK ;D ;D

 

[Staigen1]

Ok, how much did you have to pay for them? In euro, please!

//Staigen

 

[mettula]

they were around LM2.50 which makes approx 1-1.5 euwos for 5 transistors and acouple of heatsinks....

 

[audioguru2]

I think Mettula needs an entire Veronica FM transmitter kit, if it is still available.

 

[mettula]

lol audioguru i finally collected all the parts - and yeah it would have been much easier if i would have bought it