Re: home-brew tranny, and depotting NST's

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Stephen Carpenter" <sjc-at-carpanet-dot-net> 

On Thu, Dec 07, 2000 at 07:29:21AM -0700, Tesla list may have written:
> Original poster: "Chris Dobson" <cdobson-at-microtech-dot-com.au> 
> 
> Hi all,
>  
> A couple of questions : does anybody have much experience winding their own
> trannies, especially on straight cores, and secondly, what is the best way to
> depot an NST . . . I cooked one in an oven, but the enamel on the primary
> windings (which is what I wanted) got carbonised and therefore U/S. Any
> comments?

I have 2 that I am in process of depotting...

I had alot of luck with removing the case, freezeing and then cracking the 
asphalt off with a hammer and chisel. Makes a big mess as bits crack off and
fly around but - works like a charm. The asphalt gets very brittle when 
left in a freezer overnight.

The only thing I have left to do is getting the last bits off...the stuff 
stuck in around close to the windings and in the core. It has been said that 
soaking in gasoline or some other similar solvent should do the job nicely
but I havn't gotten around to finding a suitable container and location for
soaking it in such volitile substances. 

-Steve
-- 
Williams and Holland's Law:
        If enough data is collected, anything may be proven by statistical
        methods.