See e-mail from TSL copied below.
We do have a few Transponder info gaps in our registration database so do expect a chase up to ask for your number if we haven't got it.
It is good to hear from you.
Yes we do have some transponders for hire but as you may be aware drivers are supposed to have their own transponders as per MSA Blue Book. If any are needed they are £30 cash only, drivers need to go to the timing room early on Saturday morning. If there are a large number as it is the beginning of the season can you let me know as we will need to make special arrangements. Transponders can be purchased from our website as below.
Please ensure that your drivers put their transponder numbers on their entry forms and that MSVR have an excel spreadsheet of all your entries including transponder numbers which they then send to us before each event.
Any queries do not hesitate to contact me