I'll add a couple of things that might be relevant.
The Calrec Soundfield MkIV has a capsule heater to drive off moisture, a 1k
resistor across the 50V supply, so 2.5W. It's labeled 'Stem Htr" on this
schematic:
http://www.ai.sri.com/~heller/ambisonics/schematic-1.pdf
I'm in the US, and had to ship my MkIV back to Yorkshire for repairs. I
registered it with US Customs who provided me with paperwork to be included
with the return shipping documents to avoid US import duties. When
shipping to the UK, I put "for repair and return to the US" on the bill of
lading to avoid UK taxes. There may be similar procedures for the other
way.
On Tue, Sep 24, 2019 at 12:43 PM Jamie Smith <jamie.sm...@uhi.ac.uk> wrote:
> Hi all,
> Many thanks for the various suggestions, comments and tips - each one
> different and all valid avenues to investigate, along with some very
> generous offers of help which I very much appreciate. I'll see how far I
> can get with some simple DIY but may well take up an offer for help if I
> get out of my depth!
>
> Warm regards,
> Jamie Smith
>
>
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