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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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9th Aug 2019, 9:21 pm | #1 |
Nonode
Join Date: Aug 2007
Location: Walsall Wood, Aldridge, Walsall, UK.
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Vintage Resistors, Possibly Philips?
Hi!
For the sake of completing component–lists on boards I'm drawing out, does anyone recognise these resistors? I'm sure I've seen them on 1960s/1970s audio gear & some portable radios, but I don't remember seeing a service–sheet that states what make & type they are! The example shown here is 100kΩ, ±5% by the way! Chris Williams
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9th Aug 2019, 10:26 pm | #2 |
Dekatron
Join Date: Jun 2016
Location: London, UK.
Posts: 3,687
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Re: Vintage Resistors, Possibly Philips?
I've seen them before but can't remember what it was. Seem to remember it had lots of German electrolytic capacitors in it that had all leaked though!
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9th Aug 2019, 11:14 pm | #3 |
Heptode
Join Date: Jul 2009
Location: Stoke-on-Trent, Staffordshire, UK.
Posts: 719
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Re: Vintage Resistors, Possibly Philips?
For some unknown reason I'm fairly sure they were made by Erie.
Seem to remember seeing them in Thorn portable radio sets at one time. Happy to be wrong though! Pete |
10th Aug 2019, 5:43 am | #4 |
Octode
Join Date: Mar 2006
Location: Lund, Sweden
Posts: 1,632
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Re: Vintage Resistors, Possibly Philips?
I remember getting a couple of dozen or so of those in a 'bargain bag' many years ago, like late 1970-ish. Not that that helps in any way ... but I don't think I've ever seen them anywhere else until this thread!
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10th Aug 2019, 5:54 am | #5 |
Dekatron
Join Date: Sep 2003
Location: Near Swindon, North Wiltshire, UK.
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Re: Vintage Resistors, Possibly Philips?
They were made by Erie (page from their 1973 catalogue attached) and I too have seen them used in Thorn group radios.
Last edited by dazzlevision; 10th Aug 2019 at 6:22 am. |
10th Aug 2019, 7:39 am | #6 |
Dekatron
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,580
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Re: Vintage Resistors, Possibly Philips?
Yes...I used to have a Ferguson portable radio, late 60's I think and that was fitted with these odd rectangular resistor 'blocks'.
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10th Aug 2019, 9:31 am | #7 |
Rest in Peace
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Location: N.W. Oxfordshire(Chipping Norton)
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Re: Vintage Resistors, Possibly Philips?
Radiomobile & Motorola car radios made in the early to mid 70s used similsr rectangular vertically mounted resistors, presumably to save space on fairly tightly packed circuit boards. The models in question were the 1070, 1080, 1085, & 1095, and Motorola equivalents(737 & 838).
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10th Aug 2019, 2:35 pm | #8 |
Dekatron
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
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Re: Vintage Resistors, Possibly Philips?
If we're having a roll call, I've seen them in Racal equipment. A very compact package.
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10th Aug 2019, 3:32 pm | #9 | |
Octode
Join Date: Jul 2004
Location: Evesham, Worcestershire, UK.
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Re: Vintage Resistors, Possibly Philips?
Quote:
Greg.
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11th Aug 2019, 11:14 am | #10 | |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
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Re: Vintage Resistors, Possibly Philips?
Quote:
In reality, they're no more compact than "Tokyo Skyscraper" style axials but did offer easier board stuffing.
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11th Aug 2019, 9:28 pm | #11 |
Nonode
Join Date: Aug 2007
Location: Walsall Wood, Aldridge, Walsall, UK.
Posts: 2,874
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Re: Vintage Resistors, Possibly Philips?
HI!
Member Dazzlevision, thank you for taking the trouble to dig that information out for me! It's always a good idea to include a type no. on passive component data even if the components themselves are no longer available, as it makes finding a replacement so much easier – sometimes you find basic component data in a Wireless–World advert, etc, but I've not seen those resistors in the magazine! In the case of the PCBs I was asking about, the data you provided means that any type of standard carbon–film resistor can be used to replace the MU type in almost all cases! Chris Williams
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12th Aug 2019, 1:36 am | #12 |
Heptode
Join Date: Jan 2008
Location: Oslo, Norway.
Posts: 632
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Re: Vintage Resistors, Possibly Philips?
Tandberg also used these resistors.
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12th Aug 2019, 4:26 pm | #13 |
Dekatron
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Location: Sleaford, Lincs. UK.
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Re: Vintage Resistors, Possibly Philips?
I have a few of these if wanted.
Andy.
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13th Aug 2019, 10:11 am | #14 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
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Re: Vintage Resistors, Possibly Philips?
Check their resistance!
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17th Oct 2019, 5:18 am | #15 |
Pentode
Join Date: Sep 2019
Location: Perth, Western Australia, Australia.
Posts: 200
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Re: Vintage Resistors, Possibly Philips?
Interesting packaging!
I've never seen them in Oz, but have seen something similar in size & concept. Some very compact (Sony?) equipment used resistors that looked so much like the very small dipped mica capacitors that we thought we had found a "faulty cap". |
17th Oct 2019, 7:34 am | #16 |
Moderator
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Location: Fife, Scotland, UK.
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Re: Vintage Resistors, Possibly Philips?
On that data sheet, look at the spec for noise performance.
Excess noise and the lack of long term stability is why carbon comps were left behind by all but the most cost sensitive equipment (or firms with the most directly involved accountants) Carbon film resistors are less noisy and more stable. Metal film even more so. Watch out for modern thick film surface mount parts with their splodge of black stuff atop a ceramic chip. These are also surprisingly noisy... and can be 20dB noisier than metal film versions. Not all places are noise-critical, but it's advantageous to know what to use in places which are. Sometimes the need for originality forces your choice. David
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