Great transformer set for single ended amp build , 4,8,16 outputs on the OT, center tapped heater coil on PT! Approx 365v B+ , can handle up to three preamp tubed and octal of choice, 6V6-KT88.PT is classic tone, OT is heyboer. Purchased for project now on hold, my plans were ax84 SEL build, my loss your gain , price is somewhat negotiable, new this set is $125 plus shipping fron Kentucky...THANKS !!williamraypol@gmail.com