guys, i need some pointers here, im building a rf power amplifier which uses a 2N5913 which can be substituted to 2N4427 but the problem is i cant find those transistors or anything of similar values. any ideas guys?

 

Don't know where you are, but these people have 5913's - http://store.americanmicrosemiconductor.com/2n5913.html

 

oh sorry forgot to mention, i'm from malaysia and sourcing out these parts are a lil tough. i found suitable substitutes but the substitutes are as hard to find as the 2N5913 and 2N4427

 

Hello,

Perhaps take a look at the SCG015 amplifier module.
This is available at mouser:
http://nl.mouser.com/Search/ProductDetail.aspx?qs=XjRpMjhYlmBflWFeqB8wFw==
See also attached datasheet.

Greetings,
Bertus

 

thanx bertus for the input!
i went around 'shopping' a lil today and i found a transistor 2SC738 but it's for 440Mhz and i was wondering wat'll happen if i use at 145Mhz in my circuit? i mean, like anything bad?
sorry if it all seems to be a lil 'questiony' im doing all this purely out of hobby and hahahaha have no prior education in this field just know enough to do some basics, sorry again guys

 

Hello,

Do you want to make an amplifier for the 2 meter HAM radio band?
I am not so familair with japanese transistors.

On this page you will find several VHF Ham radio amplifier links:
http://www.dxzone.com/catalog/Technical_Reference/Amplifiers/VHF_Amplifiers/

Greetings,
Bertus