<gallery caption="MHT Speech">
File:MHT-sintetizdor_de_voz-001.jpg|OutsideFile:MHT-sintetizdor_de_voz-003.jpg|InsideFile:MHT-sintetizdor_de_voz-004.jpg|Component SideFile:MHT-sintetizdor_de_voz-007.jpg|Solder SideFile:NoPicture.gif|Part number on GI chipFile:NoPicture.gif|Part number on oscillator
</gallery>
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The part numbers on the chips seem to be scratched-off (or covered by paint, or is it just old glue, from the stickerstickers?). The "GI" logo on the large chip implies that it is the popular General Instrument [[SP0256]] speech chip, probably the standard -AL2 version (the ending L2 may be still visible? not sure there - on the photo it vanishes under the pot axis). The clock frequency of the oscillator isn't visible (from the perspective from where the photos were taken).
The GNDed pins somewhat confirm that it is a SP0256 (Pin1=Supply GND, Pin10,11=A8,A9, ie. only 6bit allophone numbers used).