Shaun Merrigan
Classic Electronic Restoration, Vacuum Tube Audio, Technical History, Photography
Tag: Electronics Repair
-
Our Kenmore Elite 30″ Induction/True Convection range recently developed a problem where the oven would not come to temperature in the expected time, nor would it ever attain the expected temperature. The Model number of the unit is 223 666 003 with a manufacturer number of 970-66003. However this repair applies to any number of…
-
Overview The DM 5010 was designed as a modular, rack‑mountable multimeter module for Tektronix’s TM5000 series mainframes. It combines a 4½‑digit display resolution with a microprocessor‑based front end and keypad control, letting users run measurements locally or automate them over IEEE‑488/GPIB for test systems and production environments. Key Specifications I have two Tektronix DM 5010…
-
Originally posted in January, 2022 The BK Precision 879B is a good quality, dual display 40,000 count LCR (inductance, capacitance, resistance) meter with 0.1% basic accuracy. It was first manufactured in 2010 and is still available (2021) for around $420 Cdn. I purchased mine several years ago and find it very convenient and easy to…
-
Originally posted in January, 2017 I was recently fortunate enough to acquire a Tektronix 556 Dual Beam Oscilloscope with many accessories and in good condition. Unfortunately, the cooling fan on the scope was very loud and more concerning, it emitted an alarming metal on metal contact sound. After verifying basic operation of the oscilloscope, I decided…
-
Originally posted in June of 2021 I recently completed repairing/refreshing and calibrating two Tektronix Type 114 Pulse Generators. This is a solid state pulse generator with variable pulse width (100ns – 10ms) and period (1us to 100mS). It can produce pulses of both polarities (-10v to +10v into 50 ohms). It was introduced in 1965.…