On Mon, 3 Sep 2018, jos wrote:
HEWLETT PACKARD TIME INTERVAL UNIT 526B HEWLETT PACKARD ELECTRONIC COUNTER 524C HEWLETT PACKARD DIGITAL RECORDER 560A( Possibly a second HP524(b) , unsure of this )
We have an HP 523CR, a real beauty. It has over 60 tubes! The LGP-30 has just twice as much.
Christian
