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

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Test Gear and Workshop Equipment

Notices

Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders.

Reply
 
Thread Tools
Old 4th Oct 2018, 10:33 pm   #1
budkor22
Pentode
 
Join Date: Apr 2011
Location: Edinburgh, UK.
Posts: 100
Default Selectest Super K multimeter

Anyone still using this meter?

I have one sitting on the shed workbench for years, and got it connected up.

The meter was still working, very smooth and nice movement.

Not sure how to use it or check the accuracy. I wonder of if this meter is still practical in daily use after all these years.

But for ohm and DC voltage checking would be still fine if checked out accuracy.
budkor22 is offline   Reply With Quote
Old 4th Oct 2018, 11:58 pm   #2
AC/HL
Moderator
 
AC/HL's Avatar
 
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 6,536
Default Re: SELECTA SUPER K Multimeter

Do you mean Selectest Super K? If so this is perfectly usable.
If you don't have another meter to compare readings, as a rough test measure a battery.
__________________
Bill, BVWS member
AC/HL is offline   Reply With Quote
Old 6th Oct 2018, 12:23 am   #3
Vintage_RC
Triode
 
Join Date: Sep 2018
Location: Twickenham, London, UK.
Posts: 19
Default Re: SELECTA SUPER K Multimeter

I recently checked the calibration of my Selectest Super 50 against an AD584L reference (results in another thread). Bottom line is after more than 50 years and never having been serviced or calibrated it still met its original spec.
Vintage_RC is offline   Reply With Quote
Old 6th Oct 2018, 2:45 pm   #4
budkor22
Pentode
 
Join Date: Apr 2011
Location: Edinburgh, UK.
Posts: 100
Default Re: SELECTA SUPER K Multimeter

Quote:
Originally Posted by AC/HL View Post
Do you mean Selectest Super K?
Yes, that is the one. Sorry for my mis-spelling.

I better open it up and check the battery. I think it used D size battery, and another one, which I cannot remember what type it was. It could be something not easy to get?

Quote:
Originally Posted by Vintage_RC View Post
I recently checked the calibration of my Selectest Super 50 against an AD584L reference (results in another thread). Bottom line is after more than 50 years and never having been serviced or calibrated it still met its original spec.
Yes, mine is SELECTEST SUPER K. It is a large meter, and movement of the hand is so smooth and bouncy.

I am planning to replace the old batteries inside, if they are gone.
budkor22 is offline   Reply With Quote
Old 6th Oct 2018, 3:48 pm   #5
AC/HL
Moderator
 
AC/HL's Avatar
 
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 6,536
Default Re: Selectest Super K multimeter

It's not worth the risk of leaving them in. The 15 volt BLR121 is still available, but TBH I don't bother with the high resistance ranges, a digital meter is much more convenient. The low range is handy for continuity checks though. As said, your meter is probably fine for normal uses still.
__________________
Bill, BVWS member
AC/HL is offline   Reply With Quote
Old 6th Oct 2018, 8:24 pm   #6
turretslug
Nonode
 
Join Date: Nov 2011
Location: Surrey, UK.
Posts: 2,490
Default Re: Selectest Super K multimeter

ISTR that the Super K has a basic DC voltage range sensitivity of 1 kilohm per volt, making it more comparable with the AVO 7 than the AVO 8- perhaps that's where the 'K' in the name comes from? Otherwise, it's very similar in appearance and layout to the 20 kilohm per volt Selectest Super 50 (perhaps from 50uA at FSD?), the most obvious external difference being that the Super K has scales ending in 75 and 300, rather than 25 and 100.

It is a nice piece of kit, but the low sensitivity means relatively high loading and voltage reading discrepancy in high resistance circuits, though still perfectly credible as a current meter.
turretslug is offline   Reply With Quote
Old 6th Oct 2018, 10:16 pm   #7
MotorBikeLes
Octode
 
Join Date: Dec 2012
Location: Kirk Michael, Isle of Man
Posts: 1,148
Default Re: Selectest Super K multimeter

I am pretty certain it is 20,000ohms per volt. NOT 1,000. These are TOP QUALITY meters, much easier to read than most AVOs.
Les.
MotorBikeLes is offline   Reply With Quote
Old 6th Oct 2018, 10:29 pm   #8
turretslug
Nonode
 
Join Date: Nov 2011
Location: Surrey, UK.
Posts: 2,490
Default Re: Selectest Super K multimeter

https://www.vintage-radio.net/forum/...ad.php?t=28063
turretslug is offline   Reply With Quote
Old 6th Oct 2018, 10:58 pm   #9
stuarth
Hexode
 
Join Date: Feb 2010
Location: Heysham, Lancashire, UK.
Posts: 280
Default Re: Selectest Super K multimeter

Super 50, 20,000ohms/volt, ranges markings on the faceplate, ~AVO 8
Super K, 1,000ohms/volt, range markings on the switch knob, ~ AVO 7

Stuart
stuarth is offline   Reply With Quote
Old 7th Oct 2018, 2:17 pm   #10
turretslug
Nonode
 
Join Date: Nov 2011
Location: Surrey, UK.
Posts: 2,490
Default Re: Selectest Super K multimeter

It's worth highlighting the differences between Super K and Super 50, as one could be mistaken for the other in the enthusiasm for an apparent bargain more easily than with AVO 7 and 8. I've heard the Super K and AVO 7 described as "sparky's meter", with the lower-sensitivity movement supposedly being more electrically and mechanically robust. Also, anyone who's used neon testers, "standard" 10 Megohm resistance DMMs or high-resistance analogue meters in an AC electrical fitting-type environment is likely have encountered the tendency to give misleading indication due to capacitive or inductive pick-up between conductors- at least this is much more likely to give safer false positives but it can be confusingly and annoyingly misleading. A 1 kilohm per volt meter will be much less susceptible to misleading indication- I think that there are electrical-work orientated DMMs available of relatively low input resistance of perhaps 1 Megohm for just this reason.
turretslug is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 9:31 pm.


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 - 2018, vBulletin Solutions, Inc.
Copyright ©2002 - 2018, Paul Stenning.