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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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28th Sep 2022, 4:59 pm | #1 |
Triode
Join Date: Jun 2020
Location: Yalding, Maidstone, Kent, UK.
Posts: 35
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Tektronix 567 video waveform monitor
for my sins I have one of these - the squarish version rather than the flattish 19" rack version.
I have a problem with the Y amplifier and suspect one or more transistors. But they are in sockets and very very awkward to get at. I pulled two and found their hfe was down in the 10 region. But I am not sure I have - or can - get the replacements back in properly. Access is limited by the tube/shield and output bottles. Any ideas on how to get the entire tube+shield assembly out? Or I will have to go for another fancy surgical forceps. rgrds all |
24th Oct 2022, 5:44 pm | #2 |
Hexode
Join Date: Nov 2006
Location: Biedenkopf, [Hessen], Germany.
Posts: 425
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Re: Tektronix 567 video waveform monitor
hello Jim,
567 is the most cute Tek ever, a Sampling system with nixie readout, build for UHF input. I think you mean another Tek scope, not the 567 Martin
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www.wellenkino.de Vintage Scope restorations |
24th Oct 2022, 6:46 pm | #3 |
Octode
Join Date: Jul 2009
Location: Cheshire, UK.
Posts: 1,738
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Re: Tektronix 567 video waveform monitor
Must be one of the waveform monitors listed here: https://w140.com/tekwiki/wiki/Catego...eform_monitors
Maybe the 529?, that one is a hybrid of solid & hollow state components. David Last edited by factory; 24th Oct 2022 at 6:52 pm. |
24th Oct 2022, 7:10 pm | #4 |
Hexode
Join Date: Nov 2006
Location: Biedenkopf, [Hessen], Germany.
Posts: 425
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Re: Tektronix 567 video waveform monitor
wellenkno at the makerfaire hannover 2017,
Tek 567 , own and restorated by Matt
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www.wellenkino.de Vintage Scope restorations |
31st Oct 2022, 10:47 am | #5 |
Triode
Join Date: Jun 2020
Location: Yalding, Maidstone, Kent, UK.
Posts: 35
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Re: Tektronix 567 video waveform monitor
My apologies everyone. Mine is a 529, sadly not a 567....
Problem largely solved. But a curious thing is that the Y amplifier is valve/transistor hybrid but not entirely as per schematic. The X timebase is entirely transistor which is definitely not to the schematic. Except for the EHT output valve which is ECL85 or US equivalent which is to diagram but the EHT rectifiers are semiconductors rather than valve as per diagram. Still, parts are marked 1967 so a time of change possibly. The Y amplifier has a mixture of USA and UK transistors - BC108 and AF118. The tube is in a big shield and is sandwiched between the Y chassis and the X chassis making access 'a bit tight!'. |