How hard it is to replace the rca input on the shindo amplifier?

Desoldering stations are actually a lot more expensive then soldering irons.  Used Hakko or Pace desoldering stations are $250-300 used on ebay.  I bought my Hakko 472B years ago for about the same price.  Used pricing hasn't really changed in 10 years.  Cheapest recommended new item is Hakko FR-300 for about $270 (it has the pump built into the self-contained handle -- not as good as a full desoldering stations like the used 472B).  If you look at a used station, make sure it includes a vacuum pump (some stations require external "shop air" for suction).  Otherwise, you're looking at the cheap options that czarivey has mentioned.

Desoldering station is only good when you're too much of a perfectionist who want to de-solder the whole board and change all solder joints in other words waste some time.

Hi Calvin & all

I am reviving this old post. I too am in need to replace the RCA jacks in my Shindo pre. Would you know which part number of Switchcraft female jacks are used by Shindo please? 

Thanks!

Switchcraft 3501RF is what I used. very cheap

Thanks! I also found Switchcraft 3505F with white insulation. Noting it for reference