Good companion Excuse me for a doubt an A984 tirti replacement regulator, I was stung by a technician with a title that regulators have no replacement, you who are experts Could you please tell me, well I repaired a lot of TV equipment I divided but I have no title simply but I understand quite a bit of electronics, thanks

friend jesus: sometimes transistors are used as regulators ... xx is usually distinguished x, there is a zener connected between base and mass ... x (example) if a zener of a npn has a zener of base and mass connected to it 5.7v the voltage q, will appear in its emitter will be 5v ... as long as its collector has a minimum of about 9v and the zener polrizado with a positive voltage .... and the regulators as (exemplary) the 7805- 09- they are only used as fixed voltage regulators ... I leave this link for q, comparisons values and voltage of various transistors ... https: //alltransistors.com/transistor.php? Transistor = 61707 I hope it is Useful this contribution ... greetings!