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Swinging choke value in PSUD

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Is there a datasheet for your choke to indicate what its max rated current is?

The fall off in inductance with current in a swinging choke is likely to be similar in character to that in a normal choke, but with the max rating point moved. Although the swinging choke may have a rapid initial drop in inductance, depending on how the magnetic circuit is configured.
 
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hey-Hey!!!,
IIRC that one was rated at 40 Hy at 40 mA and 8 Hy at 400 mA. Draw a line between those tow points and I think it will be close. Now the drop in L per mA probably isn't quite a straight line, but I'll bet you wind up with at least 12 Hy at your proposed loading.

I remember seeing those chokes at Surplus Sales of NE for ~$200 each and I very much regret not acquiring two of them. Most likely won't see any more either, I know for sure I wouldn't turn any I had loose...:)
cheers,
Douglas
 
Thanks for all the replies.

The data sheet from UTC specifies DC current at 400ma. The DC resistance was specified as 90 ohms but actual measurement showed a value of 125 ohms.

I purchased this a few years ago on ebay for around 100USD and postage to NZ for this boat anchor was not horrendous. Its in near new condition.

I have used 20Hy as the value to simulate the intended supply in PSUD. Just wanted to check with the DIY community for any experience in this regard.
 
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