Re: transistor TA78L 009AP 8A. in a 3/TO-92 package.
Can anyone identify this transistor ? and tell me where I can buy a replacement?
It is used in the TV aerial booster in my caravan, running on a 12v dc supply.
Thank you Mike S
transistor identification
Apr 18, 2009
5 Replies
Could be a 78L0x series voltage regulator.
It is a 9 volt, 100 mA voltage regulator from the original 7805 series.
You can\'t have a sense of humor, if you have no sense!
78L suggests a low power IC positive voltage regulator. Would 9 Volts make sense in your application ? The generic term would be 78L09 probably.
Graham
this would explain why he it doesn't test good as a transistor :)
Very much so ! He might be well advised to check if there's (a) a suitable input voltage and (b) 9V at the output pin. PDF data sheets readily available by googling 78L09.
Graham
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