[Amps] Alpha Seventy HV Meter Readings

Bill Turner dezrat at outlook.com
Fri Jan 20 11:13:23 EST 2017


I don't have the 70x schematic before me, but if it is like most
modern amps, ground is not B-.  HV should be measured from B+ to B-.
not from, B+ to ground. Check your schematic. 

The difference is not great - only the amount of cathode bias, but it
needs to be taken into consideration to be correct. 

73, Bill W6WRT


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