z wreck build power supply issue

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Mainetone
Posts: 44
Joined: Sun Mar 11, 2012 2:30 pm
Location: 43.88x70.30

z wreck build power supply issue

Post by Mainetone »

Just completed a a zwreck build, having current draw issues. I used a two el84 output stage, gz34 rectifier. Power tranny is a from a hammond ao43 this is the fourth wreck style build I have completed using this setup all the others work flawlessly. Power supply is as follows

from rectifier to stby, stby to 250ohm resistor and 40mfd cap and bplus 1
output side of resistor supplying bplus 2 then dropping string paralleled to b plus 3,4,5. of bplus 2 node

I have low bplus 1 only 100v. The amp sounds wicked good, less this little current draw issue, any thoughts
ampgeek
Posts: 1009
Joined: Sun Oct 15, 2006 1:31 am

Re: z wreck build power supply issue

Post by ampgeek »

Funky PT or rectifier perhaps?

What are you seeing for voltages on the PT primary and at all the used pins of the GZ34?

Dave O.
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