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fruittool fruittool is offline
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Location: Stoke-on Trent, Staffordshire
Posts: 4
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Quote:
Originally Posted by Phil Allison[_2_] View Post

** The fact they have a Vce of 100V as compared to the originals with 140V
is far more of a worry.

The BDV65C and BDV64C darlington pair is closer at 120V Vce.

The OP can measure the +/- DC rails see if the total is more than 120V.
I had this same concern, each rail is 52V. Your suggested parts seem closer but, would i have to change both pairs to keep the response of both channels identical?

Quote:
Originally Posted by N_Cook View Post

Any external giveaways as yo piracy?
On first examination there's nothing particularly suspect but, after checking what the proper markings would be, it turns out the gain classification (A, B or C) is missing on one and is the letter 'O' on the other. Another giveaway is the LOT number, it should be one number for the last digit of the year and one letter 'A' for January to 'L' for December. Both have three numbers and no letters.

Regards