[GreenKeys] Loop supply rheostats

[Peter Gottlieb]

Only 25 watts if you use the full resistance though. 


Peter

> On Sep 12, 2019, at 1:04 PM, Charles <charlesmorris800 at centurytel.net> wrote:
> 
> 2500 ohms * 0.1 amp squared = 25 watts <wlEmoticon-smile[1].png>
>  
>  
> From: Paul Heller
> Sent: Thursday, September 12, 2019 11:51 AM
> To: Steve Garrison
> Cc: hwhall at compuserve.com ; greenkeys at mailman.qth.net 
> Subject: Re: [GreenKeys] Loop supply rheostats
>  
> I can’t really read the picture on ebay clear, but it is either 300 volts or 500 volts. I can read .10 AMP clearly
>  
> Paul
> 
>> On Sep 12, 2019, at 10:06 AM, Steve Garrison <steve.n4tty at gmail.com> wrote:
>>  
>> I’m assuming a pretty hefty wattage?
>>  
>> How much each plus shipping?
>>  
>> Steve G./N4TTY
>>  
>> From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of hwhall at compuserve.com
>> Sent: Wednesday, September 11, 2019 7:43 PM
>> To: greenkeys at mailman.qth.net
>> Subject: [GreenKeys] Loop supply rheostats
>>  
>> Recently, there was a brief discussion of having variable resistors in the loop, to tweak the loop current.  With that in  mind, today I came across a box of brand new rheostats marked 2500ohms, 0.1amps. They have screwdriver adjust shafts.  Anyone want some of these?
>>  
>> Wayne
>> WB4OGM
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