Airbrake Rheostat?

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Bobwith2Bs
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Joined: Sat Apr 23, 2022 6:29 pm

Airbrake Rheostat?

Post by Bobwith2Bs »

Apologies if this has been covered elsewhere (i swear I checked), but what are people doing for the rheostat in DIY Airbrake builds now that the one listed in the parts list is going for over $300 in the USA?

Seems like part #588-RJS150E and all possible equivalents that i found on a quick google search made the project prohibitively expensive.
Stevem
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Re: Airbrake Rheostat?

Post by Stevem »

How about you build it with a $30 20 watt 50 ohm rheostat and then with a rotory switch between a number of 20 watt 25 ohm resistors?

Something like this should be no more then 70 bucks.
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Colossal
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Re: Airbrake Rheostat?

Post by Colossal »

Yes, the price of Ohmite rheostats has absolutely and laughably skyrocketed in price. Except nobody's laughing because it's so insulting. As Steve said, maybe find something close or surplus. I bought a 35 ohm 50W reasonably for an attenuator project but that was a one off.
Bobwith2Bs
Posts: 48
Joined: Sat Apr 23, 2022 6:29 pm

Re: Airbrake Rheostat?

Post by Bobwith2Bs »

Okay, thanks for the confirmation!

Sounds like rolling with what is available and adjusting the circuit as needed is the best move going forward. Thanks again!
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