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Member postings for Dave Daniels

Here is a list of all the postings Dave Daniels has made in our forums. Click on a thread name to jump to the thread.

Thread: What are these electronic components called?
23/02/2018 08:53:06

Zero Ohm Links

http://www.wikiwand.com/en/Zero-ohm_link

Thread: Wiring
09/02/2018 22:28:20

Sure you've counted them right ?

A 'standard' stranding for some US stuff is 33 wires / 32 AWG ( 0.008" dia. ).

This is 0.75mm^2 cable.

Other options are available .. smiley

D.

Thread: B C wooden lampholder adaptor
25/01/2018 20:19:20
Posted by Neil Wyatt on 25/01/2018 19:24:23:

Remember the 5 amp plugs you could unscrew in place and that had two split pins as contacts. Lethal!

Neil

Edit: I found it on eBay...

Edited By Neil Wyatt on 25/01/2018 19:26:39

Or those cute D&S plugs whose fuses came unscrewed and somewhat inconveniently were left sticking out of the socket with the entire National Grid waiting to ambush anyone daft enough to pull 'em out ....

en.wikipedia.org/wiki/AC_power_plugs_and_sockets:_British_and_related_types#Counterfeits_and_non-standard_plugs

D.

Thread: A memory test for the Electronics Wizards
07/01/2018 16:51:30

PIR sensor IC ?

One similar to this ??

https://learn.adafruit.com/pir-passive-infrared-proximity-motion-sensor/how-pirs-work

D.

 

Edited By Dave Daniels on 07/01/2018 16:52:01

Thread: Would anyone know where I can source On Off Decals?
01/09/2017 15:34:17

Some toggle switches come with them.

I don't suggest this switch is suitable for your application, just an eg.

No idea where you can get them for rotary-type items if that's what you have.

Pic. of YOUR switch would help.

 

When I was at work ages ago some had an engraved plastic thing  ( sort of black/white sandwich, can't remember the name of the stuff, gravelux ?? )

 

EDIT Traffolyte

 

 

http://cpc.farnell.com/pro-power/ppw01085/switch-toggle-spst-3a-leaded/dp/SW03242

Edited By Dave Daniels on 01/09/2017 15:35:57

Edited By Dave Daniels on 01/09/2017 15:39:17

Edited By Dave Daniels on 01/09/2017 15:40:38

Thread: Plums or Gages (i.e. Greengages)?
08/08/2017 15:09:30

You sure it's mould?

We had a damson and the fruits always had a whitish-grey 'bloom' which is, AFAIK, normal.

If it is mould it's probably botrytis and a search should produce images of that.

 

D.

Edited By Dave Daniels on 08/08/2017 15:12:14

Thread: Brass terminations for wire?
22/06/2017 18:53:16

Some here:

http://www.fiennes.co.uk/Parts/Catalogue/L/LA/LA130

No idea if it's what you want though.

D.

22/06/2017 18:34:24

Ross-Courtney Eye terminations.

But Ross Courtney is / was a company who make / made many types. ( So it's a bit like 'Tufnol' covers a lot of different items )

Not seen or used them for ages, used to be common on hot things like the wires from iron elements, thermocouples etc.

 

D.

 

It appears they have gone tits up ...

https://www.findtheneedle.co.uk/companies/meci-limited/products/ross-courtney-solder-tags-andterminals

 

 

 

Edited By Dave Daniels on 22/06/2017 18:35:26

Edited By Dave Daniels on 22/06/2017 18:36:08

Edited By Dave Daniels on 22/06/2017 18:40:04

Thread: Screw Suppliers
14/05/2017 11:46:20

When I was at work we used these folk.

http://www.pts-uk.com/

NOT brass though. All S.S. I think.

They also had odd stuff not listed on site so just ask.

D.

Thread: Temperature controller explosion.
12/05/2017 21:15:10

They are, to some extent, self-healing.

If the environment is prone to nasty voltage spikes the device needs a MOV. That's what they were designed to deal with.

Incidentally, MOVs degrade over time. We had to change them every year on some sensitive kit.

D.

11/05/2017 23:04:57

[a] Yes.

[b] Suppression of radio frequency noise either incoming or outgoing.

[c] Probably. I've known them to fail for no other reason than they felt like it with no problems after replacement.

Thee may be 2 other caps. ( probably smaller ) from neutral/ground and phase/ground in a 'Delta Suppressor' arrangement. Not always fitted.

D.

 

PS Andrew has faster fingers it seems ... laugh

 

Edited By Dave Daniels on 11/05/2017 23:05:40

Edited By Dave Daniels on 11/05/2017 23:07:12

Thread: Doncaster show
11/05/2017 17:38:57
Posted by JasonB on 11/05/2017 15:47:38:
Posted by Dave Daniels on 10/05/2017 19:47:42:

Any reason why online tickets are no longer available ? Seems a bit early to stop.

 

 

Chances of the postie getting them to you by Thursday so you could leave home early on the Friday are slim

 

Don't need no Postie. Last year it came as an att. to an e-mail and I just printed it off.

 

D.

 

 

Edited By Dave Daniels on 11/05/2017 17:39:40

10/05/2017 19:47:42

Any reason why online tickets are no longer available ? Seems a bit early to stop.

http://www.thedoncastershow.com/buy%20tickets.html

Did intend to go but not now. Just have to get used to being that little bit wealthier.

IIRC Last year the online tickets for Warwick were still on sale until much nearer time??

D.

Thread: P-Power hacksaw
16/04/2017 21:32:07

I use a wiper motor for a mill table x-axis feed. It's for VW Golf, made by FEBI. Cost about the same as yours.

I think they do run hot. Off load @12.8V the casing on mine tops out at some 53oC according to my IR Thermometer. after some 30 mins. or so.

Does not get so hot in service despite being loaded as it's PWM

(Sorry, can't see any way of doing superscript for 'degree' ).

D.

 

This one, I think.

http://www.mister-auto.co.uk/en/wiper-motor/febi-bilstein-17092_g295_a10117092.html

 

 

Edited By Dave Daniels on 16/04/2017 21:39:26

Thread: Turning a finned aluminium cylinder barrel for a motorcycle
02/04/2017 12:02:26

It was done the other way round ... laugh ally cast onto the other bit.

Wellworthy Alfin process IIRC. Velocette etc. ???

D.

Thread: Doncaster ME Show and Warco.
10/03/2017 09:59:50

I've done Derby - Guildford MES Show in one day, no big deal. Although it was on a Sunday, not Saturday.

Leeds isn't all that further. ?? It's about 1 hour north of me, so that would make a 4 hr.-ish one way.

IIRC my journey ave. was 56 mph. or thereabouts.

IF Warco held the Open day over a weekend then I'd probably consider having a look.

Didn't Warco once have a Northern Showroom at Warrington, or am I hallucinating again .... ???

Dave

Thread: Why don't we make models of things like this?
06/03/2017 12:03:27

I have a fair interest in this sort of thing:

http://www.sparkmuseum.com/MOTORS.HTM

One of the stoppers ( ? ) is the difficulty of getting Silicon Iron laminations or Soft Iron.

Tried some years ago but got nowhere.

One educational supplies site actually listed 3/8" soft iron rods but were actually mild steel when quizzed. frown

Unless someone knows where the stuff can be obtained in smallish quantities.

D.

Thread: Polycarbonate sheet
14/02/2017 14:26:39

Doesn't have to penetrate ... I've used it to get adhesive heat shrink off. If you can get an edge it appears to creep in and destroy the bond.

Not a quick job I admit, but it worked.

Relatively cheap to try it. If it doesn't work you still have the can for attacking sticky labels.

D.

14/02/2017 14:01:19

You might try something like 'Label Off' spray.

I get it from Rapid Electronics but no doubt similar stuff is available elsewhere.

Fairly benign, I've used to to get the damn sticky labels of plastic stuff many times and it does not seem to affect them.

D.

https://www.rapidonline.com/kontakt-chemie-208106091230-label-off-50-label-remover-200ml-87-0655

 

 

Edited By Dave Daniels on 14/02/2017 14:03:22

Thread: Fireproof Overalls
04/02/2017 15:01:56
Posted by Bazyle on 04/02/2017 12:13:03:

I saw a video on cellulose (chopped newspaper) house insulation that was treated with something that made it very non-flammable but can't remember what that was. We have to get our exhibition table covers treated with flame retardant too. There is also a video of various loft insulation being flame tested and a product made from chopped blue jeans (ie cotton) burned nicely.

So anyone know what the treatment is? I think it was some quite common chemical sounding a bit like 'borate'.

Sodium Silicate aka Water Glass has some fireproofing effect.

D.

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