Looking at edcor products for an OT for 4xel84... I found this?

[bruno]

I was looking at edcor products for an output transformer (up to 30w) that would work with 4xel84 output section or a 4xel34 cathode biased output section, with really low plate voltages (close to 230-240v).

I found these:

http://www.edcorusa.com/products/435-cxpp30-ms-6_6k.aspx
http://www.edcorusa.com/products/434-cxpp30-ms-5k.aspx

one has a 5k primary and the other a 6.6k, 5k or 4k would be nice for the 4xel84s, I guess I'll need a 2k primary for the 4xel34s. However these OTs appear to be ultralinear from the schematics presented, can anyone confirm this?

[Willabe]

However these OTs appear to be ultralinear from the schematics presented, can anyone confirm this?

Yes they are. It list's them as -- screen grid taps @ 40% -- .

You don't have to hook them up. Some guys like to use the UL taps instead of feed back. Dr. Z does this on a few of his amps.


               Brad        

[PRR]

CXPP25-MS-4K
 25W, push-pull tube output transformer for 4K Ohms to 4, 8 and 16 Ohms.

[bruno]

thank you PRR