UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > Components and Circuits

Notices

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.

Closed Thread
 
Thread Tools
Old 9th Aug 2019, 9:21 pm   #1
Chris55000
Nonode
 
Join Date: Aug 2007
Location: Walsall Wood, Aldridge, Walsall, UK.
Posts: 2,853
Default 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
Attached Thumbnails
Click image for larger version

Name:	IMG_20190809_103354297.jpg
Views:	344
Size:	15.2 KB
ID:	188131   Click image for larger version

Name:	IMG_20190809_103343908.jpg
Views:	270
Size:	26.4 KB
ID:	188132  
__________________
It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!
Chris55000 is offline  
Old 9th Aug 2019, 10:26 pm   #2
MrBungle
Dekatron
 
MrBungle's Avatar
 
Join Date: Jun 2016
Location: London, UK.
Posts: 3,687
Default 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!
MrBungle is offline  
Old 9th Aug 2019, 11:14 pm   #3
DangerMan
Heptode
 
Join Date: Jul 2009
Location: Stoke-on-Trent, Staffordshire, UK.
Posts: 719
Default 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
DangerMan is offline  
Old 10th Aug 2019, 5:43 am   #4
ricard
Octode
 
ricard's Avatar
 
Join Date: Mar 2006
Location: Lund, Sweden
Posts: 1,631
Default 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!
ricard is offline  
Old 10th Aug 2019, 5:54 am   #5
dazzlevision
Dekatron
 
Join Date: Sep 2003
Location: Near Swindon, North Wiltshire, UK.
Posts: 3,595
Default Re: Vintage Resistors, Possibly Philips?

Quote:
Originally Posted by DangerMan View Post
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.
They were made by Erie (page from their 1973 catalogue attached) and I too have seen them used in Thorn group radios.
Attached Files
File Type: pdf Erie MU carbon composition resistors data.pdf (872.5 KB, 177 views)

Last edited by dazzlevision; 10th Aug 2019 at 6:22 am.
dazzlevision is offline  
Old 10th Aug 2019, 7:39 am   #6
Sideband
Dekatron
 
Sideband's Avatar
 
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,548
Default 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'.
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman.....
Sideband is offline  
Old 10th Aug 2019, 9:31 am   #7
'LIVEWIRE?'
Rest in Peace
 
'LIVEWIRE?''s Avatar
 
Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,306
Default 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).
'LIVEWIRE?' is offline  
Old 10th Aug 2019, 2:35 pm   #8
AC/HL
Dekatron
 
AC/HL's Avatar
 
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 9,637
Default Re: Vintage Resistors, Possibly Philips?

If we're having a roll call, I've seen them in Racal equipment. A very compact package.
AC/HL is offline  
Old 10th Aug 2019, 3:32 pm   #9
greg_simons
Octode
 
greg_simons's Avatar
 
Join Date: Jul 2004
Location: Evesham, Worcestershire, UK.
Posts: 1,415
Default Re: Vintage Resistors, Possibly Philips?

Quote:
Originally Posted by 'LIVEWIRE?' View Post
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).
Took the words right out of my mouth, the only place I've ever seen them used.
Greg.
__________________
Picture, sound?, DOOR.
greg_simons is offline  
Old 11th Aug 2019, 11:14 am   #10
Herald1360
Dekatron
 
Herald1360's Avatar
 
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,526
Default Re: Vintage Resistors, Possibly Philips?

Quote:
Originally Posted by AC/HL View Post
If we're having a roll call, I've seen them in Racal equipment. A very compact package.
Yes they were. They were out of favour superseded by TR4 metal oxide film axial types by the time I started there in 1974. ISTR they were used in (at least) the RA1771/2 receivers and the MA1720 exciter which were made in Bracknell.

In reality, they're no more compact than "Tokyo Skyscraper" style axials but did offer easier board stuffing.
__________________
....__________
....|____||__|__\_____
.=.| _---\__|__|_---_|.
.........O..Chris....O
Herald1360 is online now  
Old 11th Aug 2019, 9:28 pm   #11
Chris55000
Nonode
 
Join Date: Aug 2007
Location: Walsall Wood, Aldridge, Walsall, UK.
Posts: 2,853
Default 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
__________________
It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!
Chris55000 is offline  
Old 12th Aug 2019, 1:36 am   #12
hans
Heptode
 
hans's Avatar
 
Join Date: Jan 2008
Location: Oslo, Norway.
Posts: 632
Default Re: Vintage Resistors, Possibly Philips?

Tandberg also used these resistors.
hans is offline  
Old 12th Aug 2019, 4:26 pm   #13
Diabolical Artificer
Dekatron
 
Diabolical Artificer's Avatar
 
Join Date: Jul 2009
Location: Sleaford, Lincs. UK.
Posts: 7,633
Default Re: Vintage Resistors, Possibly Philips?

I have a few of these if wanted.

Andy.
__________________
Curiosity hasn't killed this cat...so far.
Diabolical Artificer is online now  
Old 13th Aug 2019, 10:11 am   #14
Herald1360
Dekatron
 
Herald1360's Avatar
 
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,526
Default Re: Vintage Resistors, Possibly Philips?

Check their resistance!
__________________
....__________
....|____||__|__\_____
.=.| _---\__|__|_---_|.
.........O..Chris....O
Herald1360 is online now  
Old 17th Oct 2019, 5:18 am   #15
Oldmadham
Pentode
 
Join Date: Sep 2019
Location: Perth, Western Australia, Australia.
Posts: 199
Default 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".
Oldmadham is offline  
Old 17th Oct 2019, 7:34 am   #16
Radio Wrangler
Moderator
 
Radio Wrangler's Avatar
 
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,798
Default 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
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
Radio Wrangler is online now  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 10:21 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.