[amsat-bb] KR400 controller question

[W3AB/GEO]

Paul,

It appears that one unit uses 28V to  light the bulb & the other uses 14V. If the mod is for the unit that is 14V, leave the resistor in the circuit.

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73 de W3AB/GEO​

On Jan 6, 2019, 03:26, at 03:26, Paul <paul at ukdx.org.uk> wrote:
>As both my KR400 controllers have blown bulbs I've modified them to use
>
>LEDs as per https://bit.ly/2TzeHud There is however a small difference 
>that I'd like an opinion on as I'm not very electronically minded.
>
>Eddie modified his KR-400RC however on my KR-400 controllers there is
>an 
>additional 100R between the transformer and bulb. What is its purpose 
>and should I leave it in or remove it when adding the diode, limiting 
>resistor and LEDs shown in the mod?
>
>CCT grabs showing the difference https://bit.ly/2FbKIo5
>
>Paul
>Sussex Coast. JO00
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