[ARC5] ART-13 with CDA-T French version, different wiring?

[Nico van Dongen]

I'm working on a ART13 transmitter what is a French version build in 1957.
It has the CDA-T crystal unit installed but the wiring in the ART13 for the
crystal channel selection is different than I can find in the documentation

In the conversion manual to convert a ART13 to a ART13-B so it can use the
CDA-T I read that there should be an extra switch wafer on the channel
switch specially for the crystal channel selection.  This switch wafer is
not installed and it has never been in the past, all is original

I vaguely remember that I read somewhere that the crystal channels only
could be used in the remote control installation. So perhaps the channel
selection wiring is connected directly to the remote control box plug?

The VFO/Xtal relay in the ART13 does not operate and the VFO is not working
at all but in XTAL mode  I get signal from the CDA-T unit when I manually
push the relay inside the CDA-T for the specific crystal channel. So the
CDA-T unit is working

Anyone with experience on the ART-13 with CDA-T unit? Is there perhaps a
later date ART13 version with different wiring for the CDA-T channel
selection done only  from the remote control box?

Thanks

Nico - PA3ESA
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