>>
>Some commercial amps are moving to Triacs and ramping the voltage up
>instead of a "step start" and I understand they are working quite well.
>
>73
>
>Roger (K8RI)
Yep. Emtron have been doing it for many years and it is superb.
Alek,
VK6APK
### ramping up over how long a period of time, 5 x secs, 10 x secs
1x sec, or what I suspect is from a zero cross point, up to the top
of the cycle.. [IE: 4.17 msecs] ????
## will the triac handle the huge pulses every 8.3 msecs??
## My problem with the SSR's is... they need a BIG heatsink
They should also be supplemented with a breaker or fuses.
There is too much leakage current through them imo. If you
are working on an amp that has them,un-plug from the
240v line 1st.
## IF you decide on using SSR's... get one that has a
zero cross voltage turn on.... and a zero cross CURRENT
turn OFF.
Later... Jim VE7RF
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