SUBROUTINE CLK(K)
C LAEUTET DIE "CLOCK" VON DISPLAY 4010 K-MAL
C FORTRAN II
	DO 1000 N=1,K
S	CLA		/ CLEAR AC
S	TAD (207	/ LOAD BELL (CTRL/G)
SOUT,	TSF		/ SKIP ON PRINTER FLAG
S	JMP OUT		/ NOT SET CHECK AGAIN
S	TLS		/ SEND IT CLEAR FLAG
S	CLA		/ CLEAR AC
C PAUSE
	DO 1000 M=1,300
	J=M/3+2**K
1000	CONTINUE
	RETURN
	END