Re: Tektronix Type 545 A Oscilloscope Resurrection
Thanks. In fact I also have an HP 1740A scope of near identical 100MHz performance, albeit the TEK is prettier. The TEK’s automatic light change when used with a genuine TEK probe is very neat. The HP one cost me all of £60 in pristine condition with a cover and original manual and is still in very good order.
I still have my old Heath 5 inch scope from the time of Noah, but alas the transformer is duff and there’s scant chance of finding another. The rest is immaculate.
It was duff for a while till I plucked up the courage to examine the innards properly. The build quality is excellent. It fits together like LEGO (about a million miles away from the massive valved TEK scopes!) and the manual was a great help in locating the fault – a duff bridge rectifier. The area had been reworked and might be an Achilles heel. With a new rectifier fitted, all was well.
I looked at a couple of second hand digital scopes. The ragged waveform was not impressive. I don’t need the precision or convenience digital readout, so the old analogue scope suits me well.
Sent: Sunday, January 12, 2020 9:38 AM
Subject: Re: [wireless-set-no19] Tektronix Type 545 A Oscilloscope Resurrection