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

[scottjohnson1 at cox.net]

Sounds like someone just placed the CDA-T in the chassis, I have seen that before.  Pretty much a space filler!

There is extensive modification to the chassis, including some mill work, to accomplish the task.  I did it once, never again!

 

Scott W7SVJ

 

From: arc5-bounces at mailman.qth.net <arc5-bounces at mailman.qth.net> On Behalf Of Nico van Dongen
Sent: Thursday, December 8, 2022 1:46 PM
To: ARC5 at mailman.qth.net
Subject: [ARC5] ART-13 with CDA-T French version, different wiring?

 

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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