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Author Topic: Resistance Substitution Box: A Review  (Read 718 times)

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Offline keerout

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Re: Resistance Substitution Box: A Review
« Reply #15 on: January 22, 2020, 05:46:37 PM »
 TANSTAAFL !  :no:

Gerard  :wave:

Offline Railwaygun

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Re: Resistance Substitution Box: A Review
« Reply #16 on: January 22, 2020, 08:12:42 PM »
There ain't no such thing as a free lunch

This has been a public service announcement
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Offline ntpntpntp

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Re: Resistance Substitution Box: A Review
« Reply #17 on: January 23, 2020, 08:55:44 PM »
** A WARNING ***   

Just been playing with my resistance box and some 12V strip LEDS, working out what additional resistance to add to each strip to tone them down to the effect I'm after for my loco sheds.

The design of box I have shorts out to 0 when moving between 4 and 5 on the dial!  I witnessed it on the x1000, x100 and x10 dials, and pretty sure the x1 does it too although changing by 5 ohms is difficult to see the difference - I didn't bother to get my multimeter out.

This confirmed what I thought might be the case as I managed to blow some other LED mast lights a few weeks ago.

What a nuisance, still at least I know to avoid that in future.
« Last Edit: January 25, 2020, 06:11:13 PM by ntpntpntp »
Nick.   2016 celebrating the 20th anniversary of "Königshafen" exhibition layout!

Offline Malc

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Re: Resistance Substitution Box: A Review
« Reply #18 on: January 25, 2020, 05:09:05 PM »
Yes, I too found this out the hard way. Fortunately I only blew one street light.
The years have been good to me, it was the weekends that did the damage.

 

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