V-2130. 25DX is a run number and should be covered in Sams 65-17 or possibly 84-13. 65-17 is available on the ETF website:
https://www.earlytelevision.org/pdf/...sams-65-17.pdf
Rider TV3 is also available there:
https://www.earlytelevision.org/pdf/...96_rider_3.pdf
J000013 looks like the serial number of this chassis.