I've updated my page on the CDA-T crystal control module which included a simple 5 wire installation of the chassis.  Additional info is included on proper crystals, crystal current evaluation, tuning the module, tips on the 837 filament circuit, and tips on running the set on CW without the 811s.  The low frequency section is also discussed as well as the "extended range" switch. BTW if your CDA-T chassis  has the low frequency oscillator section you can simply plug it into your transmitter without any modification.

      A link is provided to the CDA-T Crystal Control installation guide courtesy of WA5CAB.

     The CDA-T chassis is an interesting modification and can plug up that hole in the front of your transmitter. It also provides proper loading  for the 837 oscillator filament.

http://k4che.com/ART-13%20CDA-T/ART-13%20CDA-T.htm

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