Shaun Merrigan
Classic Electronic Restoration, Vacuum Tube Audio, Technical History, Photography
Tag: Shaun Merrigan
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Firmware Gigapan Epic Pro Firmware Update Problems and Solution (Updated November, 2025) Gigapan has a firmware update available for the GigaPan Epic Pro, here: GigaPan Epic Pro Firmware Update To find out if you need it, check the firmware on your Epic Pro thus: Select “Options” – “Expert Options” – “Firmware Version” The current firmware version…
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Originally posted in December, 2018 Tektronix 556 Dual Beam Oscilloscope Images What follows is a series of images of my Tektronix 556 Dual Beam Oscilloscope displaying various waveforms. I am learning about this scope and how to use it. A brief description of the unit can be found here: Tektronix 556
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Originally posted in February, 2017 Numitrons are low voltage incandescent display devices perfected and marketed by RCA (see RCA advert above) in the early 1970’s. I would call this a bridge technology as the display is incandescent, but can be driven by integrated circuits. They were quickly displaced by solid state LED (light emitting diode)…
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Originally posted in June, 2022 The Tektronix TM50n is an “n”bay (where n = 1 to 6, the number of bays) mainframe which can host and power TM500 plug-ins. It was available in 1 through 6 bay versions and was the predecessor to the TM5000 mainframe: See my post here about the TM5000 mainframes. Tektronix…
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Originally posted in December, 2023 Background The Tektronix CG511/5001 Calibration Generator is a source of calibrated timing signals, voltage and current waveforms, and pulses with low distortion/fast edges. The device can be used to calibrate and check oscilloscope performance characteristics. It has six basic modes and can be remotely programmed via the GPIB interface. It…