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TBA570 vs TBA570A

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Forum » Valves / tubes - Semiconductors » VALVES/TUBES / SEMICONDUCTORS in RADIOMUSEUM » TBA570 vs TBA570A
           
Giuseppe Feniello
 
 
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03.Aug.19 11:07

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Hello Radiofriends,

please who know the difference between the "A" version ( TBA570A ) and the normal type TBA570?

On the original 1977 Philips IC's handbook ( page 66 )  there is only the sentence : "In its standard applications, the TBA570A can replace the TBA570"

Thanks !

Günther Stabe † 19.8.20
Günther Stabe † 19.8.20
 
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03.Aug.19 12:54

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They did some minor changes in the AF part of the circuit to make it more stable and powerful (driver).
Details can be seen in the circuit diagrams; I just uploaded the slightly different diagram of the TBA570A, see pins 10...13 area.
Hope that helps.
G.S.

This article was edited 03.Aug.19 12:56 by Günther Stabe † 19.8.20 .

Giuseppe Feniello
 
 
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03.Aug.19 13:47

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Hello Herr Stabe,

thanks indeed for you informations, very useful for me! Best regards!

  
rmXorg