where should I look to find an assortment of high voltage electroloyic caps. Shipping gets really expensive if I order caps as needed, and it really bites when I find out I missed one. Are old boat anchors expensive to bring back into operation? Would a motor start or run cap be adequate for a radio, or the caps out an old copier? What else might high voltage caps be used for today or are they pretty much just manufactured to restore old radios?