[Boatanchors] CG-512

[Barrie Smith]

With 50, 200, and 500 Ohm primary taps to single choice PP grids an 
Ohmeter should determine whats what.

Carl & All:

The transformer has 5 pins on one side, numbered 1 through 5.

I believe these pins are the primary side.  I would like to feed 600 ohm audio into the primary.

If I start with pin 1, I read 2 ohms to pin 2 and 4 ohms to pin 3.

There is no continuity between pins 1 through 3 to pins 4 and 5.

Pins 4 to five show 2.5 ohms.

The secondary has four pins, in two pairs.  One pin one each side is marked "F", the other pin on each side is marked "G".

Each pair has continuity  One side is 66 ohms, and the other is 56 ohms.

Since there iis no continuity between opposite pairs, I'm assuming that there are two separate windings that will achieve a center tap when the two pins that are marked "F" are tied together.

Some modulation transformers are built this way.

If I jumper the two "F" pins together, I get a reading of 121 ohms.

Anyway, as I said, I'd like to feed 600 ohm audio into one side and drive a pair of 100THs with the other.

Any help appreciated.

73, Barrie, W7ALW
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.qth.net/pipermail/boatanchors/attachments/20090109/07de9c6c/attachment.html