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Telespalla Bob Telespalla Bob is offline
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Default Old HP transistor cross reference

Hi, I am Paolo from Italy.
I received in gift an old HP Oscilloscope, the 1710B, to which they were
removed some transistors from horizontal (?) deflection output board.
Someone has the cross reference to replace the transistor originally
fitted with HP part number printed on it?

Two of these it would have to be 4-419 (1854-0419) that it is mounted in
Q5 and Q8 in 01720-66523 board.

Another other it would have to be 3-0232 (1853-0232) that it is mounted
in Q6 and Q7 in the same board.

In Q1, Q2, Q3 and Q4 I do not know what there it goes.


Many thanks for any help.





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