Check the listing for details. ARC Oscillator Relay Unit Type K-13 Used Untested. Condition: Used. Listed at 20.00 USD. ARC Oscillator Relay Unit Type K-13 Used UntestedCombined Shipping:If you choose to buy other items along with this one please allow me to send you a combined invoice. The best way to do this is to use ebay’s cart system and request a total once you have all you want in it. I will then send an invoice with the shipping adjusted per your items. Or, that’s how it’s supposed to work, but it doesn’t always. There is also the matter of using a mobile phone app to buy, it doesn’t have the option to request a total, it needs to be from a PC. If all the above fails, simply pay the amount ebay demands and we will refund the overpayment when we ship, we have to do this every day, unfortunately. My feedback speaks for itself, I don’t cheat people on shipping cost.I'm now 63 and realize I'm not going to get to all those projects that I have spent my life collecting and planning. I have dispensed with some rather large estates over the years and I don't want to leave this stuff for someone else to clean out or even worse, have it thrown in a dumpster. Thank You, Steve Williams KC4WN aka kb4dmf. Good in the call book.