[GreenKeys] How hot is too hot? (Teletype 32)

[Andy KN4UCL]

if I was to secrete a small fan in there somewhere just to move the heat
around... any thoughts about where I could safely steal 5 or 12v from my
Teletype?

On Mon, Sep 5, 2022 at 11:31 AM Andy KN4UCL <kn4ucl at gmail.com> wrote:

> Hey Jeff - I did a modification to some of the resistors to change from 60
> to the 40ma loop current (European) standard used by i-Telex. Apart from
> the heat, it seems to run i-Telex just fine 😁  Attached is a better photo
> (red circle where things are hot) ... cheers!
>
> [image: IMG_9582.JPG]
>
>
> On Mon, Sep 5, 2022 at 10:42 AM Jeffrey Golas <jeffg at junknet.net> wrote:
>
>> Can you take another pic but zoomed out/farther out?  That looks a lot
>> different than Im used to, I think.
>>
>> Considering how new those boards look I think youre fine, some of the
>> ones I have are baked to golden brown lol. All depends if the loop current
>> is set properly.
>>
>> Jeff
>>
>> > On Sep 5, 2022, at 10:37 AM, Andy KN4UCL <kn4ucl at gmail.com> wrote:
>> >
>> > 
>> > Hey folks, I recently got my M32 up and running on i-Telex and all is
>> good but things are getting a little toasty and I am not sure how much I
>> need to worry.  Please see attachments - the circles I drew show where it's
>> getting hot.  120-130F if my Harbor Freight thermometer is to be believed.
>> >
>> > As there is quite a bit of room in there, I was wondering if a small
>> fan would be helpful.
>> >
>> > Any thoughts appreciated!
>> >
>> > thanks
>> > Andy
>> >
>> >
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