Re: [TCML] microbrute DRSSTC

[W5als <w5als@xxxxxxxxx>]

Hi Tom
       I have email them 4 times in 5 days with no reply, they have no phone 
number to call. I guess they are close till after New Years. The IGBT's are
good. I think U4 or U5 is bad.

Alton

Sent from my iPad

On Dec 28, 2012, at 10:05 PM, CanalRay@xxxxxxx wrote:

> Alton: Sounds like you went over the coil with a fine tooth comb. Check the 
> output devices. You might call someone in the tech department at Eastern 
> Voltage  Research and ask if there are any quirks in the circuit during 
> start-up or  anything else that comes to mind. Good luck.
> 
> Tom
> 
> 
> In a message dated 12/28/2012 10:34:22 P.M. Eastern Standard Time,  
> w5als@xxxxxxxxx writes:
> 
> Hi
> Yes I have a break point yes I mess with  the primary too. Still no out put
> at all, the 5 amp fuse side does not pull  any current at all, it should 
> pull at 
> lease 3 1/2  amps.
> Thanks
> Alton
> 
> Sent from my iPad
> 
> On Dec 28, 2012, at  2:31 PM, Mark <the_iconoclast@xxxxxxxxxxxxxx> wrote:
> 
>> Do you  have a breakout point?  Or, it could need fine tuning, mess with
> the  turns on the primary if you haven't done so.  There are a few on 
> Youtube  you could look at, including my own.
>> 
>> On 12/27/2012 03:32 PM,  w5als wrote:
>>> Hi
>>>    I am building a  microbrute drsstc by eastern voltage research and i
> am have  problems
>>> and need some help. I finish it yesterday and was trying  to fire it off
> and got nothing so by
>>> the book i reverse the  polarity through the current transformer that
> didn't work.
>>> All the  voltages are right check them 3 times the LED's light up, the
> over current led  come
>>> on when I ramp the PW control up. I took the board out check  all solder
> joints and check
>>> ever IC twice to make sure it was  right. I tested ever diode and they
> were good, ever cap.
>>> was check  twice, I ever check the controller and wave from twice, i
> even compare the  wave form
>>> to another controller i have. I even ohm the primary and  secondary out
> they were good.
>>> Unless the IGBT are open i don't  know what else it could be. Also no
> blown fuses neither.
>>> I am not  the best at this but i did have a radio/TV repair shot for 27
> years so this  isn't new
>>> to me. I can send detail pictures if someone can compare  to there's. I
> will thank anyone
>>> for the help
>>> thanks
>>> alton
>>> W5ALS
>>> _______________________________________________
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>> 
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