A 10% increase in line voltage will affect the hv secondary but not the
filament voltage as you mite think. See below.
120 line X 10% = 132
750 hv X 10% = 825
6.3 filament X 10% = 6.9 Still within the ballpark.
Note, most all transformer filament voltages are not what you mite think
they are. For instance, 6.3 volts could be as much as 7 volts, 13.8 could be
15 volts, 5 volts could be as much as 5-1/2 volts. This also holds true with
hv secondary. Line voltage fluctuations affect the transformer outputs,
before any regulation.
My two cents.
Gary


"Antonio I0JX" wrote in message
...
Can't understand that question: if filaments voltage is OK, it means that
line voltage is OK.

Tony, I0JX

"Scott Dorsey" ha scritto nel messaggio
...
Antonio I0JX wrote:
AC voltages do not vary whether using a solid state or tube rectifier. =
By the way I still have the 5U4 and 5R4. My problem is that the AC =
voltages are high (and hence the DC ones).

Is your line voltage high?
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."