[GreenKeys] Building my own power supply

[Skip Macaulay]

Why a switching supply and also why a high current rating of 830
milliamps?? Isnt this just for the magnet loop supply? Unless I dont get
what your doing the loop supply for my model 19 was only 60 milliamps..
 Skip

On Sat, Aug 12, 2023, 9:13 PM Windows XD, <antech6586856 at gmail.com> wrote:

> Also I'm fine with, almost prefer if it were tube operated, although I'm
> not sure if that would push it beyond my skill level.
>
> On Sat, Aug 12, 2023 at 11:10 PM Windows XD <antech6586856 at gmail.com>
> wrote:
>
>> Dear Greenkeys community,
>>
>> I'm trying to build my own power supply for my Teletype model 19, it
>> needs 120-130VDC of power @ 830Ma. I'm working on a circuit for it, but I
>> don't exactly know what I am doing because I've never done this before.
>> Would you let me know if I am on the right track to building a switching
>> power supply?
>> P.S. I know it needs a snubber circuit somewhere and none of the actual
>> switching circuitry is there, I don't know enough to know what goes where.
>> [image: circuit.png]
>>
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Skip MacAulay
VE6BGT
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