https://wiki.recessim.com/w/index.php?action=history&feed=atom&title=File%3ASpeak_%26_Spell_circuit_board_%28front%29.jpgFile:Speak & Spell circuit board (front).jpg - Revision history2026-06-27T02:13:24ZRevision history for this page on the wikiMediaWiki 1.34.1https://wiki.recessim.com/w/index.php?title=File:Speak_%26_Spell_circuit_board_(front).jpg&diff=2206&oldid=prevPwf at 19:10, 13 January 20242024-01-13T19:10:46Z<p></p>
<p><b>New page</b></p><div>Decently high resolution photo of a Speak & Spell's circuit board, including power supply and speaker. The leads in the bottom right have replaced the battery leads and connect to a USB A connector.<br />
<br />
Notable components are three Texas Instruments chips and a VFD.<br />
<br />
The chips, from top to bottom and left to right, are labelled:<br />
<br />
TMC0271N2L<br />
MJFT 8822<br />
6673 PHILLIPINES<br />
<br />
CD2350NL<br />
MADW 8801<br />
3728 PHILLIPINES<br />
<br />
TMC0281NL<br />
MDFU 8826<br />
7648 PHILLIPINES</div>Pwf