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$1,195.00
Lafayette Datagraph 76102-B Lie Detector Polygraph Instrument Vintage 76102-41
$34.75
Lafayette Instruments Pneumograph 76607 - part of Biopac polygraph kit?
$149.95
Vintage Laboratory Polygraph Machine Grass Instruments DC Driver Amplifier 7DAF
$69.30
Grass Instrument Co Polygraph 7P3B Wide-Band A.C. Pre-Amplifier & Integrator
$22.50
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F/Tube Driver Amp 7DAC
$35.00
Grass Instrument 7P1G Polygraph Low Level D.C. Pre-Amplifier, Rack Mountable #2
$29.99
Polygraph Graphic Controls Chart Recorder Fast Dry Ink about 1 Pint Blue
$135.00
Grass Instruments Polygraph Integrator Model 7P10-F *Brand new
$120.00
Grass Instruments 7P1F Low-Level DC Pre Amplifier & Polygraph 7DAG Driver
$149.99
Grass Instruments Co - Polygraph D.C. Driver Amplifier 7DAG & Pre-Amplifier 7P1G
$68.40
Grass Instrument Co Polygraph 7P3B Wide-Band A.C. Pre-Amplifier & Integrator
$149.99
Grass Instruments Polygraph D.C. Driver Amplifier 7DAK w/ Pre-Amplifier 7P1F
$149.95
GRASS Instruments Polygraph D.C. Driver Amplifier 7DAF for Lie Detector Device
$199.95
GRASS Instruments RPS7C8 Regulated Power Supply Lab Polygraph Rack Mount Device
$299.95
GRASS Instruments Model SMT7C Module from Vintage Polygraph Device w/ Handpiece
$199.95
GRASS Instruments 7P122D Low Level D.C. Amplifier Vintage Polygraph Laboratory
$10.00
Graphic Controls Corp, One Roll of Chart Paper for 6-inch Polygraph Lafayette
$53.10
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$44.99
GRASS INSTRUMENTS POLYGRAPH D.C. DRIVER AMPLIFIER 7DAG
$250.00
Grass Model 7E Polygraph Components
$220.00
Grass Instrument Polygraph Differentiator 7P20-C
$49.99
Grass Instruments 7DAG Polygraph DC Driver Amplifier & 7P1J DC Pre-Amplifier
$174.95
Grass Instruments 7DA Polygraph D.C. Driver Amplifier Polygraphs
$50.40
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$99.99
GRASS INSTRUMENTS POLYGRAPH DIFFERENTIATOR MODEL 7P20C
$24.30
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1E/Tube Driver Amp 7DAC
$36.00
Grass Instrument Co Polygraph Integrator 7P1E Low-Level D.C. Pre-Amplifier
$200.00
Grass Instruments Polygraph Integrator Model 7P10-F &F
$199.95
GRASS Instruments Polygraph D.C. Driver Amplifier 7DAG for Vintage Lie Detector
$149.95
GRASS Instruments Polygraph D.C. Driver Amplifier 7DAF for Lie Detector Machine
$149.95
Grass Instruments 7P1F Low-Level D.C. Pre-Amplifier for Polygraph System
$199.95
GRASS Instruments Low Level D.C. Amplifier 7P122G Vintage Laboratory Polygraph
$52.20
Grass Instrument Polygraph Low-Level D.C. Pre-Amp 7P1L/Tube D.C. Driver Amp 7DAC
$399.95
Contact Precision Instruments Research Lab Polygraph PSYLAB System 5 Components
$38.25
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$47.25
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$49.50
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F/Tube Driver Amp 7DAC
$13.00
Stoelting Brand One Roll of Chart Paper for 10 inch Stoelting Polygraph
$149.95
GRASS Instruemtns Polygraph DC Driver Amplifier 7DAF for Vintage Lie Detector
$149.95
Grass Instruments 7P1F Low-Level D.C. Pre-Amplifier for Polygraph System
$67.50
Grass Instrument Co Polygraph Integrator 7P10A Includes 42RO 500-S PAL Relay
$22.50
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F / Tube Driver Amp 7DAC
$25.20
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F/Tube Driver Amp 7DAC
$49.99
Grass Instrument 7P1G Polygraph Low Level D.C. Pre-Amplifier, Rack Mountable #2
$79.20
Grass Instrument Co Polygraph Integrator 7P10A Includes 42RO 500-S PAL Relay
$26.10
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1E / Tube Driver Amp 7DAC
$43.65
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$149.95
GRASS Instruments Low-Level D.C. Pre-Amplifier 7P1G for Polygraph System
$299.95
GRASS Instruments WK-6-23C3/8 Patch Cable Unit for Vintage Polygraph Machine
$43.20
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F/Tube Driver Amp 7DAC
$18.00
Associated Research Inc. One Roll of Chart Paper for 6-inch Keeler Polygraph
$195.00
Grass Instruments 7DAG Polygraph DC Driver Amplifier & 7P1DE DC Pre-Amplifier
$100.00
Grass Instruments 7P1G Low-Level DC Pre Amplifier & Polygraph 7DAG Driver
$195.00
Grass Instruments 7DAH Polygraph DC Driver Amplifier & 7P1F DC Pre-Amplifier
$36.90
Grass Instrument Co Polygraph Integrator 7P1F Low-Level D.C. Pre-Amplifier
$70.20
Grass Instrument Co Polygraph 7P3B Wide-Band A.C. Pre-Amplifier & Integrator
$899.00
Astro-med K2g Grass Polygraph System Test Mt95k2g Lie Detector Waveform Recorder
$140.00
Grass Instrument 7DAF Polygraph DC Driver Amplifier & 7P1DE DC Pre-Amplifier a1
$399.95
GRASS Instruments Electrical Distribution Strip 79PDD-4-5AUX for Polygraph Unit
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