DL#080 - Grass Polygraph EKG Tacho & Wideband Pre Amps Teardown @DextersTechLab

DL#080 - Grass Polygraph EKG Tacho & Wideband Pre Amps Teardown @DextersTechLab

Uploaded December 2015 | Updated September 2026, 4 hours ago

In this video i continue looking inside the components of the Grass Instruments Polygraph. This time it's a EKG Tachograph pre-amp and a Wide Band A.C. pre-amp.

dexterslab2013.blogspot.co.uk
facebook.com/DextersLab2013

DL#080 - Grass Polygraph EKG Tacho & Wideband Pre Amps Teardown

DL252 Quantel HAL Update & Retro Computer Festival in Cambridge

DL157 Setaram CS32 Thermal Analysis Controller Teardown

DL161 Apple Macintosh LC Repair & Restoration Part 1/3

DL120 - Framing A Silicon Graphics Altix 4700 Node

DL184 Olivetti NetStrada 3200 Dual Pentium 2 Server Restoration Part 1

DL#078 - TEAC RD-111T DAT 8 Channel Data Recorder Teardown

DL214 Quantel DPB-7001 Digital Paintbox Restoration & Repair Part 6

DL193 Pentium 3 + Voodoo 2 SLI + GeForce 2 Retro Gaming PC

DL#103 - Quantel Paintbox Repair Part 3 & New Tools from www.reichelt.co.uk

DL228 Quantel DPB-7001 Restoration & Repair Part 8

DL188 Buy-As-You-View Coin Meter Gets Liquidated!

DextersTechLab |

DL#080 - Grass Polygraph EKG Tacho & Wideband Pre Amps Teardown