This is the so called tourist tram. Our Hotel is the K+K Central. We will want to take this tram to the Prague Castle so a few questions:
1) I assume the tram has the end of the line destination marked on the front so that one knows that you are heading in the right direction?
2) Can you enter and validate your ticket either at the front or back of the tram?
3) Does the tram stop at each stop or only after someone requests it or there are people waiting at the stop?
4) Does the driver callout the stops or are they displayed electronically?
5) Are there tram signs at each stop?
6) I assume that on the return journey the tram stops are located on the opposite side of the street?
7) What is the cost of the long ride ( and for how long) and for the short ride ticket?

Thanks!

1. Yes
2. Yes
3. The trams stop at every station.
4. The driver does not call out the stops; most of the trams are too old to have electronic displays, either.
5. Yes
6. Yes, generally.
7. http://www.livingprague.com/transport.htm

2. The validating machines use slow dot matrix printing heads and takes about a full second to complete printing. Keep your ticket in the slot until you can hear the machine stop printing. If you just push in/out quickly expecting instantaneous ka chunk type validating machine used elsewhere, you will only get a partially stamped ticket = bad news.

If you don't see ticket vending machines, buy them at tobacco stands, metro station, or even at your hotel. Of the tobacco stands, ones close to busy tram stops sell tickets. If you head out to less busy areas, always have return usable tickets in your hand. You might not find a way to buy return ticket easily.

can I just update a few things
1.Dlabcov is the direction.Prrazky Hrad is the stop for the catstle, though you can take it to Poholerec and walk down the hill from there.
2. there is a yellow box for validating tickets on every coach of the trams usually 2 in each.
3.Stops at all stops
4.Stops are called out by an automatic syatem and there is also some trams with digital displays.
5.Yes there are also timetables at each stop
6. yes but sometimes the stops can be stageered by as much as 100 yards or so due to junctions , etc.
7.there are various tickets you can buy, the link fourfor travel has given you is great,in fact that whole website is superb.I am good friend with the guy that runs it and we often meet up for a meal or a few drinks when we are both in the city.Most hotels will sell you tickets but they are easily available it lots of places.
word of warining ,make sure your ticket is properly validated and only do it once per ticket.the inspector take no prisoners and fines are high compared to ticket prices

Thanks all for the quick responses!

If that tram you are on isn't eventually going UPhill then you are on the wrong one! Trust me, you won't have any trouble getting off at the correct stop.

I would agree with Dukey1., the stop for the castle is very obvious because it just about empties at that stop.
I suggest going to Poholerec stop as this takes you close to the Strahov Monastry complex which is worth visiting ,the Library there has gone under an amazing refurbishment and worth going in to see( you can only see the library from a doorway though).One of my favourite pubs is there the Klasterini Pivovar, brews its own beer and does really good food.
you can walk down hill from there and visit the wonderful Loretta building before hitting the castle or better still leave that area for another day.

Well, he's staying at the K&K Central, so if the tram doesn't cross the river fairly soon after he embarks, he messed up.