Last night I was working on the power supply.
The 9.8 volt for the PA was still missing. Now it is in.
I tried to get a 78S10 for the power supply. This regulator can handle 2 Ampere.
Unfortunately It was unavailable so I used a 78S09 instead.
The transformer is rated at 1,26 Ampere. The radio draws a bit more, 1,4 Ampere.
So it is overloaded. Fortunately it seems to handle it well. It gets a bit warmer though. Beside that the output voltages drops because of this load.
When testing I found I had a lot of humm on the modulation. It turned out that the input of the 12V regulator is too low at minimum of the ripple.
Tonight I will increase the input capacitor to decrease the ripple.
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