Posted by manualblock [ 24.45.24.101 ] on August 06, 2006 at 18:52:01:

O'kay I got a nice old trans from an EL 84 amp. It reads 130v 160ma on the sec..
117/100/0 on the primary.
I measure 7.5ohm across the primary and 3 ohm across the secondary.
It has a 6v leg on the sec and a 6.3v leg.
It also has a 6v leg on the pri tied to the 6v leg on the sec with a wire to both ends. On the pri. there is a tab E also.

So source impedance.
SI = pri dcr x turns ratio^2 + sec DCR from Damir's formula.
7.5 ohm * ( Ns/Np) + 3 ohm
7.5 ohm * (130/117) +3= 12.26
Is that the figure we use on the trans in PSUD?
Thanks Guys.

Replies:

• Re: New Transformer - Damir 07:27:33 08/07/06 (5)
  • Re: New Transformer - manualblock 09:01:22 08/07/06 (4)
    • Re: New Transformer - Damir 13:06:02 08/07/06 (3)
      • Re: New Transformer - manualblock 16:02:51 08/07/06 (2)
        • Re: New Transformer - Aki 17:16:35 08/07/06 (1)
          • Re: New Transformer - manualblock 18:06:25 08/07/06 (0)