The small HP knobs are 0.050" (50 thou). Get good quality ones or they will damage the screws. I once found sone marked 1.27mm. The company found a random key that fitted a part they bought in, measured it in metric and ordered 50 custom keys in that size!
Robert G8RPI. > On 16 November 2018 at 14:19 "Dr. David Kirkby" > <[email protected]> wrote: > > > I have a few HP 5370B time-interval counters of various states of cosmetic > and electrical condition. I wish to swap some knobs between the > instruments, as some are in better condition than others. Can anyone tell > me what size of hex key these are? I wish to order a hex key, but > obviously, want one the correct size. > > Dave, G8WRB. > > -- > Dr David Kirkby Ph.D C.Eng MIET > Kirkby Microwave Ltd > Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, > Essex, CM3 6DT, United Kingdom. > Registered in England and Wales as company number 08914892 > https://www.kirkbymicrowave.co.uk/ > Tel 01621-680100 / +44 1621-680100 > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
