[Amps] LCR mteter.

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Fri, 2 Apr 2010 00:23:16 -0700, "Jim Thomson" <Jim.thom at telus.net>
wrote:

>##  another thing I  learned [ the hard way]    way  to disconnect both  vac tune and vac load
>caps, and install  the B+k  875  across  each one,  and note  down the exact pf, for  every turn
> of the turns counter, from MIn  to MAX.

REPLY:

Agreed, except for the tune cap, I would leave it connected to the
tube anode, so the tube's capacitance is included in your
measurements. After all, that is the actual value you will be using in
the amp. But you can add it in later if you want. Your call. 

If you do have the tube connected and you are using a low frequency
C-meter such as the AADE unit, disconnect the plate choke or it will
throw you off, way off.

73, Bill W6WRT