KT88 Ultralinear?

[multi]

I have built several 572b PP amps using cathode feedback works very well and can drive any speaker. The Feta amp; I can't see any real cathode feedback winding's? You need a good driver for cathode feedback as it increases the drive requirements.
Phil

 

[gingertube]

I have a pair of these Output Trannies sitting on my shelf.
http://shop.plitron.com/specs/2100CFBH.pdf

Parallel Push Pull KT88 with Ultralinear plus Cathode feedback.

Note the combination of 30% Ultralinear Tap when used with 10% Ctahode feedback effectively makes that Ultralinear percentage = 40%.

Next project when I finish the Guitar Amp I'm doing now.

Cheers,
Ian

 

[costis_n]

I have built several 572b PP amps using cathode feedback works very well and can drive any speaker. The Feta amp; I can't see any real cathode feedback winding's? You need a good driver for cathode feedback as it increases the drive requirements.
Phil

Feta? Are you greek? 🙂

...any kind of feedback increases drive requirements. Note that due to the high transformer ratio in my build, I actually got very little feedback off the transformer secondary. A separate feedback winding would be necessary to get an arbitrary amount of feedback.