Various Eagle approximations of boards sold by Douglas Electronics.
<UL>
<LI><b>5-de-7</b> is a drawing of the 5-de-7.</LI>
<LI><b>10-de-77</b> is a drawing of the 10-de-77.</LI>
<LI><b>11-de-7</b> is a drawing of the 11-de-7.</LI>
<LI><b>18-de-77</b> is a drawing of the 18-de-77.</LI>
<LI><b>21-de-7</b> is a drawing of the 21-de-7.</LI>
<LI><b>21-de-77</b> is a drawing of the 21-de-77.</LI>
<LI><b>9-de-8</b> is a drawing of the 9-de-8.</LI>
<LI><b>26-de-8</b> is a drawing of the 26-de-8.</LI>
<LI><b>26-de-8x</b> is a drawing of the 26-de-8 done with more mordern components.</LI>
</UL>