Ten Tec Argonaut 505 - the original Argonaut First, cosmetically it's a solid 8 out of 10. Normal wear for its age with no big dings or scratches. Though I'm neither a collector nor historian, the serial number is 00036, which may mean it's the 36th off the assembly line. If that's the case, this would be a collector's item. I've made hundreds on contacts on 40, 20, and 15 meters with it. See "known issues" re: 80 and 10. Though this radio helped usher me back into active hamming after a spell of being away and has served me well, it's time to move along. And this radio would be better off with a real Ten Tec aficionado. Bought this off eBay in 2012. Sadly, the seller's claim "works as it should" was not entirely true. I won't follow suit - nobody likes those kind of surprises - so I'll list all issues of which I'm aware. Known issues: Previous owner(s) went diddle stick crazy. I've done some peaking of the receiver and transmitter within the equipment limitations here, but it needs a real alignment. See item 1 below. The sensitivity control for the SWR function had been removed and replaced with a rotary switch. The switch controls an internally installed audio filter board, which works rather well. I don't recall whether it's a Ten Tec or MFJ filter. The meter lamp circuit has been replaced with LED back lighting of the meter and two /somewhat/ sufficient LED's for the tuning dial. Never got around to trying different LED's for the dial. The dial string needs to be replaced. I'd suggest going 100% old school with strictly a dial string/spring combo - and forego the lame "stretchy" single-ended system Ten Tec used. The dial slips a bit - don't know if it's string, clutch, or PTO related. Receiver seems deaf on 80 meters, though it may simply be alignment related. On 10 meters, it hears, but I never really gave it a good shake down on that band. No printed manual. PDF's are available on line. I have one and would be happy to send via email. Reasons for selling: 1) To really properly address a full alignment, I'd have to purchase some test equipment that I'd prefer not to invest in at this time - ie: frequency counter and scope. 2) The SSB portion of the transceiver is a total waste to me. I don't own a microphone nor do I care to. I "do voice" on the telephone. On the radio, I use CW. 3) I've changed allegiance to Heathkit - specifically HW-8's, plural. They're CW only, I'm more familiar with them, and I prefer older Heathkit equipment over older Ten Tec gear. Price: $150 plus shipping - USPS money order or cash only. All I want is to break even on this radio. Willing to meet 1/2 way for local pick up, within reason. Please respond to my QRZ.com page email address. Thanks!