3 ms·
If you liked this you should check out the British Cave Research Association's Cave Radio and Electronics Group at https://bcra.org.uk/creg/ https://bcra.org.uk
by foobarbecue 5y ago
If you liked this you should check out the British Cave Research Association's Cave Radio and Electronics Group at https://bcra.org.uk/creg/ https://bcra.org.uk/creg/