WTB.... IN-83 fish spine beads

Radio Telephone and Telegraph Transmitting and Receiving Equipment
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cvairwerks
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WTB.... IN-83 fish spine beads

Post by cvairwerks » Tue Mar 28, 2023 2:54 am

Looking to buy about 600 IN-83 fish spine beads for a couple of restoration projects.


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Re: WTB.... IN-83 fish spine beads

Post by N6FEG » Tue Mar 28, 2023 7:24 am

If you can't find the IN-83 insulators you might look into getting the fish spine type steatite ceramic insulators that are used with thermocouples. We used them at work and they sure look close enough to the IN-83s. And presume your using these on the antenna leads on your aircraft radios.
Just a quick look on the WEB showed a couple of sites that had them and sure there are more.
Paul

cvairwerks
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Re: WTB.... IN-83 fish spine beads

Post by cvairwerks » Tue Mar 28, 2023 7:53 am

Paul: The Omega FS-330-10's are close in diameter and length, but small for the thru hole. The FS-400-8 has the right sized thru hole, but the od and length are a bit too big... The 330's are my backup plan if I can't find any more IN-83's. I'm short about 40 of them for the L-5 and need over 500 for the AT-21.

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John Neuenburg
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Re: WTB.... IN-83 fish spine beads

Post by John Neuenburg » Wed Mar 29, 2023 11:52 am

AT-21? Now that is an interesting and rare airplane!
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cvairwerks
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Re: WTB.... IN-83 fish spine beads

Post by cvairwerks » Thu Mar 30, 2023 9:19 am

Oddball and rare...185 built, mine was #2 of 39 built by Bellanca. I've had the project stashed for years and just really getting started on the rebuild this year.


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