Electronics > Repair
Tunable inductor for Moog Theremin
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EugenioN:
I've got a Moog Theremin and I need to replace this tunable inductor because its ferrite core is cracked and can't be rotate:



It's a SLOT TEN5-10 from Coilcraft: https://www.coilcraft.com/getmedia/90724f9c-b8a9-4867-9507-a749f251f08c/slot10.pdf 47uH nominal (20uH-60uH range) with a fairly low Q=32.

Unfortunately I can't find it: it was quite uncommon at its heyday, discontinued by manufacturer and no longer available.
No one is selling nos parts on ebay (Europe).
Any suggestion?

 
indeterminate:
Do not be to fussy
Usually sumthing that is ruffly the same will work , even if you just swap the slug out of one of the following you should be ok

https://au.mouser.com/c/passive-components/inductors-chokes-coils/variable-inductors/?inductance=450%20nH~~550%20nH&instock=y&rp=passive-components%2Finductors-chokes-coils%2Fvariable-inductors%7C~Inductance
EugenioN:
Yea, I've been definitely to fussy  :-DD

Just bought a new tunable inductor like this one:

Removed the wire and cut away the base with pins, the ferrite core and its plastic sleeve fits perfectly inside the original tunable inductor.
The inductance range is close enough :-+

Great advice, thank you!

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