Jugaad PCR Thermocyclers
Coconut PCR :-)
Coffe Machine PCR :-)
some discussion about the light bulb and fan thermocycler in DIYbio maillits.
referring to an indian research group
cathal harvey showed me the hot airgun version with relay, no posts found yet on indie biotech
open hardware thermocycler
The classic OpenPCR kit to order, assemble and hack by openPCR.com