Hi,
Does your Goldquest have a serial number? I have a record of selling one to Calgold in July 1994. A few were made after that, but all were sold in the UK. The successor to the original Goldquest was the Deepstar.
The name "Goldquest" had not been in use for at least five years and it seemed appropriate to resurrect it for a totally different detector in 2002, namely the Goldquest SS. People were successfully using this detector for nugget hunting as well as beach searching, and a name that was appropriate to both, was needed.
You certainly have not bought a piece of junk. Many of those original Goldquests are still in use, particularly in the UK, although it is primarily a beach detector. One user here has two of them and he wont use anything else. He is going to send me some pictures soon, of all the gold he has found, so keep your eye on this forum for a mouth watering post sometime.
The minimum delay setting was 15us, and with both manual and motion retuning, plus the other facilities, it is still a very good performer in spite of being a bit long in the tooth. Pulse rate was about 1000 pulses per second and the TX pulse 100uS wide.
I'm sure I can find a manual, and I know I have a suitable charger. If the unit has not been used, it may well be that the battery pack is still good. Worth trying charging it up and using a few times, before dipping into the wallet for new cells. I will give Bill Crabtree a price for the charger and manual in the next few days.
The coil is shielded and replacements are still available. Motion mode is SAT, although it is not variable as in later units.
Hope this helps.
Eric.