Cleaning up a Brass Straight Morse Key.

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Thank you Chris KG7CTQ for sending me this key! Can anyone tell if it's a J38 or J37? I cleaned it up a bit, mounted it on a nice wooden plate and now it is ready for many more years of service! Get extra content on Patreon: / radioprepper DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests. .
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Опубликовано:

27 мар 2019

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Комментарии : 48

@jalind1 9 месяцев назад

This is not a J-38. It looks like a Bunnell key. The spring design is a dead giveaway. It's the method Bunnell used to attach the spring to the frame. The writing on the key frame may confirm this. It may say Bunnell or a Western Union designation. The contact anvil has the exact shape of a Bunnell "legless" key. The term "legless" comes from not having long "legs" extending from the bottom of the key for attaching the key through holes in a thick desk and attaching the circuit to the bottom of the legs under the desk. The key may be substantially older than a J-38.

@mrdinx Год назад

I have one such project I’m in the works right now.

@YaxisX 5 лет назад

Good video. Thanks for the guide to cleaning. I also use a fine grit sandpaper which I fold in half and drag between the contact points to get a clean and crisp connection.

@billsblots 3 года назад

Thanks, that’s what I think I need to do on my Ham Key HK3M.

@rudidraufganger7448 3 года назад

Nice job

@joelaut12 5 лет назад

a Brass cleaner called “Brasso” is a good polishing compound, used it when I was in the army when shining brass was very important. Thanks for posting!

@RadioPrepper 5 лет назад

Thank you!

@tpobrienjr 4 года назад

Very nice result! My first key was a J38 purchased in 1957 from a surplus store. Most recent key was also a J38 from a hamfest in January 2020. Love them all.

@RadioPrepper 4 года назад

Yep, I have one of those too :-)

@hectorpascal 5 лет назад

Sandpaper is a bit brutal on soft metals! There's a German made metal polish available all over Europe called Autosol (Edel-Chromglanz). Just about the best product I've ever used on any metal! It also contains a protectant to reduce further atmospheric tarnishing. (No I don't work for the company!)

@RadioPrepper 5 лет назад

Great thanks!

@levicaddell1077 5 лет назад

It looks like a reproduction of a J38 to me - without the typical J38 base. I think the Japanese reproduction was called JJ38. I have been using a J38 that I got surplus for 50 cents in 1962. (I was 10yo.) I clean mine with "BRASSO". A trick I learned in the Army. If they don't have it in France you might be able to get it thru Amazon. I love my J38. It is great for average and slower speeds, AND requires very little maintenance....

@eminusipi 5 лет назад

My dad bought me a j-38 that was in a thrift store for $1 in the early '60s and it was in mint condition. Don't know who made it but it was probably ARH. Would like to get a Lionel but not at the prices now days.

@PreparednessVeteran 5 лет назад

Very nice - almost vintage in appearance. It really came up looking good.

@RadioPrepper 5 лет назад

I think it is pretty old...

@MoTown44240 5 лет назад

That key looks like a J-38. I used a lot of Brasso, first in U.S. Navy Boot Camp Training to polish brass bells, torpedo propellers, brass nose of a torpedo, brass belt buckle (not really a buckle) and anything thing else that had a brass coating. Cotton balls, brasso, and a lot of elbow grease made tarnished brass come to a gleaming shine and sparkle.

@RadioPrepper 5 лет назад

Signal Electric MR-100.

@eminusipi 5 лет назад

Did you ever use Bug Juice (kool-aid) on brass?

@MoTown44240 5 лет назад

@@eminusipi The can of Brasso lasted well over 6 months. Boot Camp trainees don't have access to a store at their leisure nor do they have access to their $98 per month salary. After Boot Camp my next can lasted my remaining 3.5 years in the service. Trainees were not permitted to remove food from the Mess Hall unless it was contained in their bellies. I attended Boot Camp in the Summer, right after high school graduation, and sweating was common place. Any replacement of liquid was consumed. Therefore there would be no Bug Juice to taken from the Mess Hall. Therefore, no.

@RadioPrepper 5 лет назад

No...

@charlieb.4273 5 лет назад

I just finished cleaning up a brass key and building a project for a telegraph sounder. It is a clock that sends out a time signal to the sounder once an hour. It uses an Arduino and a gps module to make it very accurate. Pictures of my key and the sounder project on my QRZ page. 73 Charlie, KM4ZZ

@RadioPrepper 5 лет назад

Will check, thanks!

@DanTaylorDotCom 5 лет назад

It looks identical to my two J-38 keys. A nice key but I prefer using my two Junker keys. The J-38 works well outdoors.

@EC5ABG 5 лет назад

Muy bueno. Gracias por la idea.73.

@RadioPrepper 5 лет назад

De nada :-)

@tokki5024 3 года назад

Thanks for sharing good video :-) 좋은 비디오 올려주어 감사합니다. ^^

@ElektroLUDIKITS 5 лет назад

Some light car polish applied with a rag could do the job too ;)

@glenng.8254 2 года назад

NO! NO! Not sand paper !!!! Vinegar is all you need.

@stuarthall3874 5 лет назад

Looking forward to seeing it in action. ☺

@RadioPrepper 5 лет назад

Monday morning :-)

@tglenn3121 Год назад

I have one similar to this but it has small ball bearing that hold the + part of the paddle onto the base. Any idea of how to get the ball bearings to stay in place on each side? Can I use glue? Being that they're ball bearing, I'm thinking glue isn't a good idea, but I can't figure any other way to keep the ball bearings in place on each side before putting the paddle back in

@RadioPrepper Год назад

Grease might help..

@tglenn3121 Год назад

@@RadioPrepper Thank you.