You can turn a transistor on and off with DC just fine.  H Bridge inside?

On Mon, Apr 13, 2020 at 9:12 PM Marshall <[email protected]> wrote:

> Most SSR's use triacs, and will only work on AC.
>
> Marshall
>
> On 4/13/2020 9:01 AM, Ode Coyote wrote:
>
> You can get solid state relays with no contacts to EVER wear out
>
> On Sun, Apr 12, 2020 at 2:13 PM Gm Gm <[email protected]> wrote:
>
>> Hi there:
>>            Just wondering if anyone has done any experimenting with the
>> timing for polarity reversal. Not doubting the 1 minute at all. But at that
>> rate, that would be 60 cycles an hour, and 600 cycles for a 10 hour brew.
>> Since I make several brews at a time, that is a lot of wear and tear on the
>> relays. Does anyone know the lifetime cycles those relays can handle before
>> failure? I am going to be using a DH 48S-2Z unit from Amazon.
>>    Thank you... Regards Grant.
>>
>
>