[time-nuts] 7150+ filter problem
cadbloke at hotmail.com
Tue Oct 27 23:52:17 UTC 2009
indeed you are right. I've peeled the shield apart and it is (as you suggest) full of some sort of potting compound.
Given it's only got about $1 worth of caps in it, I thought it would be worth a try.
I think the hardest part will be getting rid of the smell.
> Hi Ian,
> never taken an FN372 apart, not really worth it as?they are about ?25 from RS components. Most filters are epoxy potted so I think you will have to use a lot of brute force to open it up and then break up the epoxy.
> Robert G8RPI.?
> --- On Tue, 27/10/09, gonzo moto <cadbloke at hotmail.com> wrote:
> From: gonzo moto <cadbloke at hotmail.com>
> Subject: Re: [time-nuts] 7150+ filter problem
> To: "time-nuts" <time-nuts at febo.com>
> Date: Tuesday, 27 October, 2009, 15:18
> I've just replaced a Solartron 7150+ with another the same.
> The new unit is low hours ex-MOD. It was last calibrated in 2004 and probably hasn't seen the light of day since.
> So (thinks I), I'll just have a play before I strip the filter for a rebuild.
> 15 minutes is all it took for the signature ffffffzzt pop of the filter letting go.
> It has (to say the least), forced the issue.
> Now I've removed all the solder around the earth pin, but I still can't get the cover off.
> Does it just require brute force to pull it off or there something else holding it on?
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