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Vintage Computers Any vintage computer systems, calculators, video games etc., but with an emphasis on 1980s and earlier equipment. |
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27th Mar 2019, 12:21 pm | #1 |
Tetrode
Join Date: Jul 2018
Location: Southport, Merseyside, UK.
Posts: 63
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Computer module?
I found some of these in an old junk box, just out of interest I wonder if anyone knows what equipment they were used in. FF I presume is for flip flop. I seem to remember They were on big boards I found in an electronic junk shop in Manchester. I was more interested in the 100Khz crystals on the boards as i was after building a nixie clock.
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HAPPINESS IS A WARM WIRELESS PREVIOUS USER NAME- MIKE G3ZII |
27th Mar 2019, 5:05 pm | #2 |
Nonode
Join Date: Jan 2016
Location: Stafford, Staffs. UK.
Posts: 2,532
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Re: Computer module?
It seems you are correct. http://www.electrojumble.org/DATA/Mu...Combi_Data.pdf
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29th Mar 2019, 2:32 am | #3 |
Rest in Peace
Join Date: Jul 2011
Location: Bridgnorth, Shropshire, UK.
Posts: 787
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Re: Computer module?
What you have there looks like an interesting piece of computer history.
I just need thirty of them (plus a couple of spares) |
29th Mar 2019, 12:18 pm | #4 |
Tetrode
Join Date: Jul 2018
Location: Southport, Merseyside, UK.
Posts: 63
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Re: Computer module?
That seems to fit, Mullard from the early 60's. I seem to remember opening one up and it had the Mullard black glass transistors inside. I think I got these in about 1970, they were being thrown out as obsolete and TTL was on the way in.
I can't find 30 of them sorry, if you PM your address I can send one, I only found a few and I've had another request for one. Don't worry about post cost they should go as a large letter.
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HAPPINESS IS A WARM WIRELESS PREVIOUS USER NAME- MIKE G3ZII |
29th Mar 2019, 8:06 pm | #5 |
Rest in Peace
Join Date: Jul 2011
Location: Bridgnorth, Shropshire, UK.
Posts: 787
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Re: Computer module?
Just kidding LV123
But many thanks for your very kind offer. They'd make an interesting talking piece if they were mounted in a box frame with a little added printed history. I think I drift somewhere between art and science! Last edited by Karen O; 29th Mar 2019 at 8:06 pm. Reason: Include thank you |
30th Mar 2019, 2:10 pm | #6 |
Rest in Peace
Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
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Re: Computer module?
That brings back memories! In 1968 when I went to work for a well-known government radio and electronics security organisation in Gloucestershire, I was initially put in their technician's training school. For the trainees to 'play around with', there was all manner of relatively ancient bits of hardware - including those - known as 'Combi blocks'. In essence, they were the forerunner of DTL (diode transistor logic), and occasionally one would find a 1U 19" panel with several solderable matching sockets physically assembled therein in parallel. There was the FF1, FF2, (flip-flops), PS1 and PS2 (pulse stretchers) and others. All were labelled accordingly and were different colours. If memory serves me correctly, the transistors within were OC44, OC45 and possibly OC70.
Al. |