Hi fellow modelers,I'm looking for anyone who can help me with the design of a TAT V MCB/WAC walkaround dc controller shown in the April 1994 issue of Model Railroader magazine.This is the walkaround version of the TAT V published in April/June 1988 issues.The model was built on two separate boards, the MCB base unit and the WAC handheld unit. I know at that time kits were available from a company named APC Inc. I reviewed the MR article and there is seem to be some discrepancy between the MCB schematics and the circuit board layout. Some traces seem to be missing or part misplaced around the D3M diode and J/K connections on the PC board ? I'm really not sure. I found no corrections published for this throttle in the remaining months of 1994 MR issues. Also, it seem the SW1M relay COM pins location are not in the middle position like most 2-form-c relays.I would appreciate any infos, schematics, photos etc... of the boards from a kit or built controllers to compare with the layout from the article. Also, there seem to be some different version of the TAT V listed as follow : ENCL-DC (enclosure, filtered dc) **** as shown in April/June 1988 MR issueENCL-SR (enclosure, switching regulator) *** no infoMCB-DC ( walk around main circuit board, filtered dc) ***** as shown April 1994 MR issue MCB-SR ( walk around main circuit board, switching regulator) ****** no infoMCB-HF (walk around main circuit board, variable frequency regulator) **** no infoWAC-RS (handheld unit, rotary-switch) ****** as shown in April 1994 MR issue WAC-PB (handheld unit, push button) ***** no infoThank you for your help.