Sound Generator Chip list

Not only does Unicorn Electronics offer to sell you the extinct SN76477 chip, but also a few other ones that I was not familar with.

Stock #	Pins	Description	1-24		25-99	100+
BR1941*	18	Dual Baud Rate Generator	1.99	[Order]	1.89	1.70	[Checkout]
2143*	18	Four Phase Clock Generator	2.99	[Order]	2.84	2.56	[Checkout]
XR2206	16	Monolithic Function Generator	2.99	[Order]	2.84	2.56	[Checkout]
COM5016*	18	Baud Rate Generator	15.99	[Order]	15.19	13.67	[Checkout]
MM5321*	16	TV Camera Sync. Generator	6.99	[Order]	6.64	5.98	[Checkout]
MM5837*	8	Noise Generator	7.99	[Order]	7.59	6.83	[Checkout]
8038CCPD	14	Precision Wave Form Generator	3.29	[Order]	3.13	2.82	[Checkout]
8116	18	Dual Baud Rate Clock Generator	7.99	[Order]	7.59	6.83	[Checkout]
8224	16	Clock Generator/Driver	2.49	[Order]	2.37	2.13	[Checkout]
MC14411	24	Bit Rate Frequency Generator	6.99	[Order]	6.64	5.98	[Checkout]
76477*	16	Complex Sound Generator	19.99	[Order]	18.99	17.09	[Checkout]
76489*	16	Sound Generator Controller	9.99	[Order]	9.54	8.54	[Checkout]
AY3-8910	40	Programmable Sound Generator with I/O	6.99	[Order]	6.64	5.98	[Checkout]
AY3-8912	28	Programmable Sound Generator with I/O	8.99	[Order]	8.54	7.69	[Checkout]
AY3-8913	24	Programmable Sound Generator	8.99	[Order]	8.54	7.69	[Checkout]

http://www.unicornelectronics.com/IC/GENERATORS.html