AudioBanter.com - View Single Post

In article , wrote:

Phil Allison wrote:

"John Stewart"
Phil Allison wrote:

"John Stewart"

The connexion shown needs to have the common (gnd) connected to the 4R
tap
which is the mid-point on the 16R secondary. By coincidence, I tried
this
on
a simple PP 6V6 amp (pentode connected) with a Hammond 125E OPT on Sep
9/05.
Here are some results measured with & without this very limited form of
local voltage NFB.

On the 8R connexion the amp internal Z without NFB measured 42.98R,
rather
high as one might expect for a straight pentode amp with no FB.

** But a 6V6 is a " Beam Power Amplifier " ( GE Essential
Characteristics) - not a pentode.

......... Phil

So?

** What is your question ?

............ Phil

What is your answer?

He has no answers, nor an original thought in his head.

Regards,

John Byrns

Surf my web pages at, http://users.rcn.com/jbyrns/