Post AUUHPRdaAoLl1W3EW0 by BoscoLab@social.tchncs.de
 (DIR) More posts by BoscoLab@social.tchncs.de
 (DIR) Post #AUUHPRdaAoLl1W3EW0 by BoscoLab@social.tchncs.de
       2023-04-09T19:59:19Z
       
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       I discover the HP 5370B Universal Time Interval Counter. A transistor in the power supply was over 80 °C. This temperature is a bit too high. It is a Motorola with the HP part number 1853-0411. Is there an alternative to this transistor? I haven't found anything on the internet.
       
 (DIR) Post #AUUHPSJ3gbWj69SMAC by tanteju5@ruhr.social
       2023-04-09T20:44:55Z
       
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       @BoscoLab According to this https://www.eevblog.com/forum/testgear/very-nice-hp1745a-with-little-problems/?action=dlattach;attach=113578 it is an 2N6050
       
 (DIR) Post #AUUHPStZUqjYvOXW4m by penguin42@mastodon.org.uk
       2023-04-09T21:02:10Z
       
       0 likes, 0 repeats
       
       @tanteju5 @BoscoLab Yeh that matches https://www.sphere.bc.ca/test/hpdata/hp-xref81-4.jpg   top of right column