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Post by crustytv » Tue Apr 12, 2016 1:25 pm

4K7 resistor network, any TV techs remember seeing them in sets and if so which? I would imagine mid to late 70's use. Also would they be 1W or 3W


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Re: Resistor

Post by Mikey66 » Tue Apr 12, 2016 1:28 pm

Thorn used these in their 9K & 9K6 series sets. I can't remember the particular values though.

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Re: Resistor

Post by crustytv » Tue Apr 12, 2016 1:42 pm

Hi Mike,

Now you mention it I seem to recall something similar on my Thorn 9905 chassis.

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Re: Resistor

Post by sideband » Tue Apr 12, 2016 1:43 pm

They've shown up in various sets over the years. The early type were actually individual resistors potted in clay. These are thick-film units and probably 70's/80's

8137 could be a date code...37 week of 1981

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Re: Resistor

Post by Pamphonica » Tue Apr 12, 2016 5:55 pm

We used to use lots of these as termination resistors on parallel data links (like SCSI etc) in the late 70s.
From memory the individual resistor power rating was only 0.25W


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Re: Resistor

Post by turretslug » Tue Apr 12, 2016 6:05 pm

Not necessarily 4k7, but arrays featured a lot with things like 7 segment displays, keeping PCBs neat, compact and quick to load.

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Re: Resistor

Post by Terrykc » Wed Apr 13, 2016 11:26 am

Yes, 9 pins, one common and 8 resistors. Ideal pull-up resistors for 8-bit devices!

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