This listing is for ONE (1) Unused 1980 Aurora Speedsteer TCR Slotless Electric Racing POWER PACK TRANSFORMER. It is unused new old factory stock sourced from a large distributor close out. Output is 23.5 Volts AC 12.2VA. Part #6150-101 UL Listed 302-D.It will also work on the Xlerator or Ultra% system from Aurora, TYCO TCR as well as Carrera Servo systems by cutting and splicing the plug end. Sold as is. Buy with confidence please check out my other offbeat slot car related items. Descriptions are very accurate; No Returns. PLEASE ASK BEFORE YOU BUY IF YOU ARE UNSURE. We ship promptly professionally. We happily combine orders refund any excess s/h immediately upon shipping. We can always provide tracking. ************** From I Only ship U. S. Postal Service PRIORITY MAIL TO THE USA due to previous 'lost' packages. ******************* I charge $2 for expert handling/packaging, actual shipping. I ship out of the country almost daily. Please refer to my feedback, rating or time selling HO slots for assurances of a good honest deal. happy motorin' thanks S'lots from Bob. We Know H.O.