b525 switching transistor

[pink148]

Hi all.
Can any on tell me where to buy a replacement transistor for my mk1 cobra gtl-dx.I have tried my local radio store and the ones that they sell dont do the job !
Here is the part i am looking for...Swithching transistor B525..The mk1 cobra has 3 of these one of mine is down...i.e no output power on fm. but power is fine on ssb....
any help is welcome...thank's for the use of the forum.

[The Defpom]

You could try using an NTE298, which is a replacement option.

You probably want to get hold of "Truck King", they are one of the better places in the UK, http://www.truck-king.co.uk

[pink148]

Hi there.Thank's for the reply.Could you tell me where to buy some of these as i have tried truck-king and also knights...Still no joy !
Thank's.

[The Defpom]

Kens Electronics sells them, in the US, but he does international sales.

http://www.kenselectronics.com

[pink148]

Ok thank's again.

[Rick]

You can replace 2SB525 with BC636 just turn it round as Emitter and Base differ from the 2SB525 or you can use BD136 I have been using them for years. The BC and BD transistors are obtained at most good electronics shops E.G Grandata www.grandata.co.uk Hope this helps.

Rick.

[pink148]

Thank's Rick for the info.
I will go have a look.

[pink148]

Thank's for the info.I found a place in england (uk) that had Bd 136.Guess what they worked fine.Thanks for all the hel i got and thanks for the use of the forum.

http://www.bowood-electronics.co.uk/