[SPARCbook] Tadpole parts/price list updated

[Bill Bradford]

The Tadpole spare parts/price list has been updated, this time with 
changed descriptions telling whether a part is for a SB2, SB3, etc.

Thanks to Dave Taylor @ Tadpole.

Bill

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+-------------------\ /-----------------+
| Bill Bradford      |  www.sunhelp.org |
| mrbill at mrbill.net  |   www.decvax.org |
| Austin, Texas USA  |    www.pdp11.org |
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