Modification for guarded current output in Fluke 5720A
Published: 27 September 2020 Modification for additional guarded output capability in Fluke 5700A/5720A front panel inteface.
Fluke 742A resistance standards repairs and performance checks
Published: 15 September 2020 Benchmarks and test results of various Fluke 742A resistance standards.
ESI SR1010, SR1030 and SR1050 series resistance ratio transfer standards
Published: 06 September 2020 Benchmarks, teardowns and performance of ESI SR1010, SR1030 and SR1050 hammon dividers.
Acopian AC-DC Linear power supply
Published: 01 August 2020 Review and tests of Acopian Gold series A24MT350 +24V 3.5A linear DC power supply
EIP/PhaseMatrix 578B Locking microwave counter
Published: 01 August 2020 Review and tests of EIP / PhaseMatrix 578B 10Hz - 110 GHz counter with locking capability
High-current resistance and shunt measurements log
Review and tests of Femto HVA low-noise amplifier
Teardown : Fluke Y2022
Teardown : Fluke 7405A-4207 divider module
Wavetek 4953 10A AC/DC precision shunt review
Setting up a SZA263/LTFLU voltage reference
Published: 02 December 2019 Introduction to solid-state reference REFAMP design, using Motorola SZA263 or FLUKE/Linear LTFLU.
Calibration procedure and results for xDevs/Fluke 792X 10V DC Reference
Published: 06 November 2019 Calibration methods and reports for xDevs.com's 10V DC reference, built into modified Fluke 792 Power Pack chassis.
Fluke 8505A Teardown and repair worklog
Published: 10 October 2019 Repair worklog of the Fluke 8505A, precision 6½-digit benchtop multimeter from year 1982.
Repair, testing and experiments with Ballantine 1605B
Published: 17 September 2019 Maintenance and experiments with Ballantine AC/DC Autobalance Transfer Standard
Ian Johnston's PDVS2mini prototype review and testing
Published: 09 September 2019 Benchmarking LM399AH-based compact PDVS2mini Precision DC source from Ian Johnston.
Leo Bodnar's fast pulser (2.92mm version) review
Arroyo TECpak temperature controller unit review and usage
Updated 2019 SI units transfers @xDevs labs
Review and modifications for Agilent 16441A R-Box
Building air-bath thermal Peltier chamber
Published: 07 March 2019 Low-cost take on benchtop thermal chamber with airflow mixing, using Peltier element and PID controller.
Review and calibration of Advantest R6452A 5.5-digit DMM