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Old 19th Sep 2020, 11:24 am   #10
PJL
Dekatron
 
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 5,997
Default Re: PX4 substitutions

As Graham says, have you checked voltages to confirm the PX4 is faulty? I would expect the HT to be very high.
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