Voltage Reducing Resistors [was: current limiting resistors]
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Re: current limiting resistors
With the volume on 1/3 to 1/2 I was dropping about 18v so its relative to how hard the amp is working
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Re: Voltage Reducing Resistors [was: current limiting resistors]
I confess I used my admin super powers to correct the title of this thread
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Re: Voltage Reducing Resistors [was: current limiting resistors]
update4;
strange going's on! my wall "mains" voltage keeps fluctuating between 245 to 250 VAC. i've just done a voltage test and the mains is now 250VAC which has increased the HT to 319-0-319 with 310 volts post 25W's at pins 1 & 7 of the ez81. B+ is now 366 VDC at the first cap "too much" so it look's like i'll have to invest in a variac to be accurate with my testing!
this has got me a bit paranoid now in thinking is the extra resistance of the voltage reducers affecting the HT winding? i know those 8 & 14W's got very hot so would the HT windings have been affected by the heat?
strange going's on! my wall "mains" voltage keeps fluctuating between 245 to 250 VAC. i've just done a voltage test and the mains is now 250VAC which has increased the HT to 319-0-319 with 310 volts post 25W's at pins 1 & 7 of the ez81. B+ is now 366 VDC at the first cap "too much" so it look's like i'll have to invest in a variac to be accurate with my testing!
this has got me a bit paranoid now in thinking is the extra resistance of the voltage reducers affecting the HT winding? i know those 8 & 14W's got very hot so would the HT windings have been affected by the heat?
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Re: Voltage Reducing Resistors [was: current limiting resistors]
My wall voltage seems to go between 242-248 all the time Geoff probably depends on the load variations in the area. As I've deliberately gone a bit lower on my B+ I'm not too concerned.........or do we need zeners!
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Colin
Colin