VHT Ultra lead plate voltage and cathode current ?

[hopkinWFG]

Hi guys, wonder what's the general PV for our ultra lead? I gotten an ultra lead which I checked mine with a quartered EH KT88 I only yield PV to be at 405VDC.. My cathode current are as follows 51mA,44mA,44mA,47mA....

I have read over the forum page that the ultra lead will have 450PV at 65% tube dissipation... But from what the figures I got I only biased mine at 50% tube dissipation .... I spanned out the trim pot and found my ultra lead can only get 415PV ......

Is there anything wrong with this amp I got ?

 

[Dale B]

The ones I had were right at about 445 or 450 depending on the KT88s I was using. Call them up and see.

 

[sjk]

The ones I had were right at about 445 or 450 depending on the KT88s I was using. Call them up and see.

Good luck calling them They don't answer phones anymore and rarely answer emails unless it is for the Power Station.

 

[godgrinder]

Check your mains voltage, it might be a bit low? The actual plate voltage you get correlates to your mains voltage.

 

[hopkinWFG]

Check your mains voltage, it might be a bit low? The actual plate voltage you get correlates to your mains voltage.

thanks i have read about that... i am running a 117VAC ultra lead..my country is 240VAC british mains... i checked my step down tranny to be 110VAC before feeding into the amp.... may i know whats the amercian main voltage regulated at measuring off from your wall socket outlet ?