Re: magnetic pulser

mbgupta@julian.uwo.ca
Tue, 01 Sep 1998 17:02:37 -0400

Emery;

I used 400V @ 20 amps the peak current is the thing to get, in this case it
was well over 500 amps. Don't have handy the part number but will be in my
cct. Most of the time diodes get cooked. so use 3 120 V night lamps in
series with them and cct will be very reliable.

Chris

At 10:06 PM 8/31/98 -0700, you wrote:
>mbgupta@julian.uwo.ca wrote:
>>
>> Will do in due course have not got it in electronic form yet.
>>
>> Chris
>
>Hi Chris, Thanks for answering my e-mail. I hooked one of my pulsers
>up to a 400 volt 16 amp SCR and it promptly smoked it. I then hooked it
>up to 2 400 volt l6 amp SCRs in parallel and it works just fine. I
>guess that I just didn't have enough current handling capacity in the
>beginning. I've since ordered a couple of 600 volt 40 amp SCRs so I
>should have to use only one of them. I would still be interested in
>seeing your circuit when you get it on paper.
>
>Emery.
>
>
>> At 09:36 PM 8/25/98 -0700, you wrote:
>> >Hi Chris,
>> >
>> >I read your answer to Buhatarau on the Keeleynet about how you have
>> >designed your own circuit using a high power SCR. I have built several
>> >of the pulsers myself and would be interested in your approach. Would
>> >it be possible to get a copy of your circuit?
>> >
>> >Emery Wayman
>> >
>