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Andrew
I am retired but sometimes household task take priority. I can discuss
radio things most afternoons.

I did measure the transformer output in CW mode at 28 MHz and saw 6+
watts
and 20amps.

I have found that my oscilloscope is old and not accurate, but is good
for
a relative measurement that shows the L305 input voltage is higher than
the
output. I also verified this with a VTVM.
I can’t argue that the L305 maybe bad, but is of robust construction
with
the secondary windings shielded coax. I did check continuity of the
primary to the secondary. Which shows a good open circuit.

I can’t explain why the 6 watts does not pass through the rx/tx relay
and
the HPFs.

Tommy

On Tue, Jan 28, 2025 at 3:48?AM Andrew Lenton via groups.io <a=
[email protected]> wrote:

Oh !!!

Well done how much current was it drawing when you were measuring 6

Watts,

now you can put a watt meter try FM or CW see if you get 100 Watts.

If the rig draws 20 Amp and you are only getting a few Watts, then

the

transformer is faulty in some way.

Order a new transformer any way, then you can move with fault

finding.

If you saw 6 Watts at the output of the transformer, then why was it

not

at the aerial socket?

73

Andrew

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On 27 Jan 2025, 23:27, at 23:27, "Tommy Wooten via groups.io"

<kf4rwg=

[email protected]> wrote:

Andrew
I removed the PA board, separated the transformer and reinstalled

the

board
so I could access the transformer output on the top side. See photo
attached.

Tommy

On Mon, Jan 27, 2025 at 5:42?PM Andrew Lenton via groups.io <a=
[email protected]> wrote:

Yes indeed,

CW or AM would be my preferred option, also you need a PEP Watt

meter.

KR

Andrew

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On 27 Jan 2025, 22:35, at 22:35, "James Tiberius via groups.io"
<nono2212000@...> wrote:

In SSB mode current draw should be low until audio is being

modulated.

I would expect high current draw when using carrier modes