You can also order the proper set of strings from The Dulcimer Shoppe, home of McSpadden dulcimers. For your T34 you will need loop end strings. I think the price is $5.50 plus $3.00 shipping. When I looked at JustStrings the 0.023 wound strings appear to come only in a pack of 5 for $10.55. The 0.010 and 0.014 are $3.62 each for a pack of 12 strings. You need to look under Bulk strings for these.
"The dulcimer sings a sweet song."