How to test an unknown OT - Video

[kagliostro]

https://www.youtube.com/watch?v=Yzo3A-NywSs


K

[dude]

OK, I used a 7.3vac transformer and put that voltage on the primary of the single ended OT

Gave me .20 VAC on the secondary

That gave me a turns ratio of 36.5 to 1

Squaring the turns gave me 1332.

Now dividing that by the impedance I want to use:

I get 10,658 @ 8ohms  and 5328 @ 4ohms

The amp is a single ended 6V6, plates running at around 315/325vdc from memory (pretty close)

Not sure what that 6V6 wants to see at 8 ohms but looks like this OT is at 10,658 @ 8 and 5328 @4

Can I use an 8 ohm speaker?

al

[shooter]

Can I use an 8 ohm speaker

From the data sheet I have it shows about 8.5k @ 315vdc so I think the 8 ohm will work best

[TIMBO]

K, That's GREAT. Thanks