Crystal and tube radio`s

Welcome to the Leverguns.Com Forum. This is a high-class place so act respectable. We discuss most anything here ... politely.

Moderators: Hobie, AmBraCol

Forum rules
Welcome to the Leverguns.Com General Discussions Forum. This is a high-class place so act respectable. We discuss most anything here other than politics... politely.

Please post political post in the new Politics forum.
Message
Author
User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#51 Post by OldWin » Sun Feb 04, 2018 3:29 pm

Very nice Lenn. That is a classy looking unit!
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#52 Post by Pitchy » Mon Feb 05, 2018 1:32 pm

Thanks Jay, I built a speaker magnifier today the box holds a computer speaker.

https://www.youtube.com/watch?v=D2dsa17AGJo
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#53 Post by OldWin » Mon Feb 05, 2018 2:13 pm

That's really neat. It's got that old timey look for sure. :D
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#54 Post by Pitchy » Tue Feb 06, 2018 11:49 am

Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#55 Post by OldWin » Tue Feb 06, 2018 2:35 pm

Holy smokes, that works slick buddy!
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#56 Post by Pitchy » Tue Feb 06, 2018 3:00 pm

Thanks Jay. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#57 Post by Pitchy » Fri Feb 09, 2018 2:02 pm

Today we made a Quaker oats crystal radio, this was something they did in the old days.

Image

Video.
https://www.youtube.com/watch?v=oZnmqE2h9zs
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#58 Post by OldWin » Fri Feb 09, 2018 8:46 pm

Pretty neat Lenn. I never heard of such a thing.
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#59 Post by Pitchy » Sat Feb 10, 2018 8:19 am

Thanks Jay, they made some pretty neat looking ones in the old days in cool old oat boxes. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#60 Post by Pitchy » Tue Feb 13, 2018 6:12 pm

Couple more radios, first is a Philmore Bakelite I bought that needed rewiring but works now.

Image

Image

Second is a small wood box one I made this morning.

Image

Image
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
Rusty
Advanced Levergunner
Posts: 8766
Joined: Mon Sep 03, 2007 6:37 pm
Location: Central Fla

Re: Crystal radio`s

#61 Post by Rusty » Tue Feb 13, 2018 10:33 pm

I love seeing your stuff Pitchy. Keep it up!
If you're gonna be stupid ya gotta be tough-
Isiah 55:8&9

It's easier to fool people than it is to convince them they have been fooled.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#62 Post by Pitchy » Wed Feb 14, 2018 2:29 am

Thanks Rusty, my problem is I can`t have just one. :oops: :lol:
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#63 Post by OldWin » Wed Feb 14, 2018 3:13 am

Cool stuff, Lenn. My grandparents had an old bakelite radio. Not sure if we still have it. I do have their old Philco tube job though. Still works.
Nice work on the "woody". :D
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#64 Post by Pitchy » Wed Feb 14, 2018 8:06 am

Thanks Jay, we may start building another today. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#65 Post by Pitchy » Wed Feb 21, 2018 3:42 pm

Here`s a really nice radio I got, really works well. :D

Image

https://www.youtube.com/watch?v=z0WJVkQydtM
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#66 Post by OldWin » Wed Feb 21, 2018 4:30 pm

Wow, thats a really nice one, buddy! Classy.
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#67 Post by Pitchy » Wed Feb 21, 2018 6:41 pm

Thanks Jay, I get the most enjoyment from the simple things. :)
The beauty of such a thing is ya can head for the hills stretch a wire pound a stake and hear what`s going on, yaaaaa cool beans man. 8)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#68 Post by OldWin » Wed Feb 21, 2018 11:32 pm

I'm the same way. Knowing i can get by and survive on very little I find somehow comforting.
Not that I want to, mind you.......but I could. :D
"Oh Bother!" said Pooh, as he chambered another round.

Bill in Oregon
Advanced Levergunner
Posts: 4072
Joined: Sun Jun 29, 2008 10:05 am
Location: Alamogordo, NM

Re: Crystal radio`s

#69 Post by Bill in Oregon » Thu Feb 22, 2018 10:17 am

You've got a great collection going here, Lenn.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#70 Post by Pitchy » Sun Feb 25, 2018 2:09 pm

Thanks Bill, I remodeled the speaker horn using part of a old tin gas tank for the top :)

Image
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#71 Post by OldWin » Sun Feb 25, 2018 2:13 pm

Came out really giod buddy. You're a pro!
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#72 Post by Pitchy » Sun Mar 11, 2018 5:27 pm

We built this radio today, real happy with it. :)

Image

Image
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#73 Post by OldWin » Sun Mar 11, 2018 8:12 pm

Wow, nice buddy. Radio in a box. :D
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#74 Post by Pitchy » Mon Mar 12, 2018 6:39 am

Thanks Jay, I like it wanted one a little bigger that ya can carry in a pack without damaging it.
Plus a lot of the real old ones were built that way. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#75 Post by OldWin » Mon Mar 12, 2018 7:10 am

Yeah thats a great idea. A real survival tool.
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#76 Post by Pitchy » Wed Mar 14, 2018 3:26 pm

Thanks Jay.
We made a box for the first radio I made a few years ago.

Image

Image
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#77 Post by OldWin » Wed Mar 14, 2018 4:42 pm

Nice job bud! I really like the whole box thing. Just somehow finishes it.
"Oh Bother!" said Pooh, as he chambered another round.

Bill in Oregon
Advanced Levergunner
Posts: 4072
Joined: Sun Jun 29, 2008 10:05 am
Location: Alamogordo, NM

Re: Crystal radio`s

#78 Post by Bill in Oregon » Fri Mar 16, 2018 9:02 am

So many nice ones here, Lenn, but my favorite just for design purposes is the one in post #50. How did it work out?

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#79 Post by Pitchy » Fri Mar 16, 2018 9:25 am

Image
[/quote]

Made me go count :lol:
It works but not as good as the second to last. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

Merle
Levergunner 3.0
Posts: 658
Joined: Tue Sep 03, 2013 8:40 pm

Re: Crystal radio`s

#80 Post by Merle » Fri Mar 16, 2018 12:42 pm

Did you ever get a chance to test the slinky spring outdoors? :?:
Merle from PA

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#81 Post by Pitchy » Fri Mar 16, 2018 12:57 pm

Merle wrote:
Fri Mar 16, 2018 12:42 pm
Did you ever get a chance to test the slinky spring outdoors? :?:
Sorry nope , I did hang it on my exsisting horizontal wire but didn`t notice any change.
When it gets nicer out I`ll try it more. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

Merle
Levergunner 3.0
Posts: 658
Joined: Tue Sep 03, 2013 8:40 pm

Re: Crystal radio`s

#82 Post by Merle » Fri Mar 16, 2018 1:07 pm

Pitchy wrote:
Fri Mar 16, 2018 12:57 pm
Merle wrote:
Fri Mar 16, 2018 12:42 pm
Did you ever get a chance to test the slinky spring outdoors? :?:
Sorry nope , I did hang it on my exsisting horizontal wire but didn`t notice any change.
When it gets nicer out I`ll try it more. :)
OK, thanks for the reply......
Merle from PA

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#83 Post by Pitchy » Fri Mar 16, 2018 1:21 pm

I`ll go out and try it right now, hang tight pard. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#84 Post by Pitchy » Fri Mar 16, 2018 1:58 pm

Ok I tried the slinky and the tape measure, could just hear a station with the slinky and not much more using the tape.
Not a fair place as the only ground point was the pipe for the wind thingy as I can`t pound a stake in the frozen ground.
Will try it again when the ground thaws. :)

Image

Image
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

Merle
Levergunner 3.0
Posts: 658
Joined: Tue Sep 03, 2013 8:40 pm

Re: Crystal radio`s

#85 Post by Merle » Fri Mar 16, 2018 5:40 pm

Well, it's a start! Thanks for trying. :wink:
Merle from PA

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#86 Post by Pitchy » Mon Mar 26, 2018 3:02 pm

Picked up this home built radio from the 20`s so we built a oak box for it. :)

Image

Image

Image

Image
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#87 Post by OldWin » Mon Mar 26, 2018 4:43 pm

Nice job, buddy. Looks like the box was always there!
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#88 Post by Pitchy » Mon Mar 26, 2018 5:15 pm

Thanks Jay. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#89 Post by Pitchy » Wed Mar 28, 2018 8:41 am

Image
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
KirkD
Desktop Artiste
Posts: 4322
Joined: Sat Apr 07, 2007 6:52 am
Location: Central Ontario, Canada
Contact:

Re: Crystal radio`s

#90 Post by KirkD » Wed Mar 28, 2018 9:12 am

This is one of the most fascinating threads I've seen in a long time.
Kirk: An old geezer who loves the smell of freshly turned earth, old cedar rail fences, wood smoke, a crackling fireplace on a snowy evening, pristine wilderness lakes, the scent of
cedars and a magnificent Whitetail buck framed in the semi-buckhorn sights of a 120-year old Winchester.
http://p2c.com/students/blogs/kirk-durston

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#91 Post by Pitchy » Thu Mar 29, 2018 8:08 am

Thanks Kirk glad ya enjoyed the thread, electronics isn`t one of the things I`m good at so it`s pretty confusing and trial and error.
There are so many variables that can change things I added about 50 feet to my antenna and now some radios are better and some hardly work. :lol:
Fun to experiment with them none the less. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#92 Post by Pitchy » Mon Apr 02, 2018 6:03 pm

Yet another radio, bought this coil and capacitor and made a box for it.

Image

Image

Image

Image

Video.
https://www.youtube.com/watch?v=zclfPKp3xio
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#93 Post by OldWin » Mon Apr 02, 2018 10:39 pm

I like that one buddy! Thats the coolest one yet.
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#94 Post by Pitchy » Tue Apr 03, 2018 6:42 am

Thanks Jay, appreciate your reply. :)
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
gamekeeper
Spambot Zapper
Posts: 11090
Joined: Thu Sep 06, 2007 3:32 pm
Location: The wrong side of the pond.

Re: Crystal radio`s

#95 Post by gamekeeper » Tue Apr 03, 2018 8:09 am

OldWin wrote:
Mon Apr 02, 2018 10:39 pm
I like that one buddy! Thats the coolest one yet.
Plus one 8) I have fond memories of my brother trying to get radio Luxembourg on his crystal radio back in the 50s.
From his weapons on the open road no man should step one pace away, you don't know for certain when you're out on the road when you might have need of your spear.
Havamal ( Viking collection of common sense )

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#96 Post by Pitchy » Tue Apr 03, 2018 8:15 am

gamekeeper wrote:
Tue Apr 03, 2018 8:09 am
OldWin wrote:
Mon Apr 02, 2018 10:39 pm
I like that one buddy! Thats the coolest one yet.
Plus one 8) I have fond memories of my brother trying to get radio Luxembourg on his crystal radio back in the 50s.
Thanks pard its fun making them some work better than others, a couple of them can be heard loud across the room.
The antenna is the heart of the radio.
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
gamekeeper
Spambot Zapper
Posts: 11090
Joined: Thu Sep 06, 2007 3:32 pm
Location: The wrong side of the pond.

Re: Crystal radio`s

#97 Post by gamekeeper » Tue Apr 03, 2018 9:54 am

That's true about the antenna, I remember my brother getting into trouble for drilling a hole from the bedroom to the attic for the antenna... :lol:
From his weapons on the open road no man should step one pace away, you don't know for certain when you're out on the road when you might have need of your spear.
Havamal ( Viking collection of common sense )

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#98 Post by OldWin » Tue Apr 03, 2018 1:02 pm

Not to drift the topic, but the antenna thing reminded me....
When we were kids, my buddies and I all had CB base units next to our beds and would shoot the bull before going to sleep at night. I had an old 23 channel Realistic Navajo. Still around somewhere. Depending on our antenna setup, some could get across the neighborhood, some across town.

Sorry for the drift. Just a memory that popped up. :D
"Oh Bother!" said Pooh, as he chambered another round.

User avatar
Pitchy
Posting leader...
Posts: 10175
Joined: Tue Mar 01, 2011 9:15 am
Location: Minnesooooota

Re: Crystal radio`s

#99 Post by Pitchy » Tue Apr 03, 2018 1:54 pm

OldWin wrote:
Tue Apr 03, 2018 1:02 pm
Not to drift the topic, but the antenna thing reminded me....
When we were kids, my buddies and I all had CB base units next to our beds and would shoot the bull before going to sleep at night. I had an old 23 channel Realistic Navajo. Still around somewhere. Depending on our antenna setup, some could get across the neighborhood, some across town.

Sorry for the drift. Just a memory that popped up. :D
All we had was a couple soup cans and a string. :roll: :lol:
Because I Can, and Have
-------------------------------------------------------------
USAF-72-76
He was the best little dog i ever had !!!!!
Sometimes I don`t even understand myself.

User avatar
OldWin
Advanced Levergunner
Posts: 2795
Joined: Fri Oct 09, 2009 2:38 pm
Location: Maine

Re: Crystal radio`s

#100 Post by OldWin » Tue Apr 03, 2018 2:08 pm

Pitchy wrote:
Tue Apr 03, 2018 1:54 pm
OldWin wrote:
Tue Apr 03, 2018 1:02 pm
Not to drift the topic, but the antenna thing reminded me....
When we were kids, my buddies and I all had CB base units next to our beds and would shoot the bull before going to sleep at night. I had an old 23 channel Realistic Navajo. Still around somewhere. Depending on our antenna setup, some could get across the neighborhood, some across town.

Sorry for the drift. Just a memory that popped up. :D
All we had was a couple soup cans and a string. :roll: :lol:

Them old CB's weren't much better! :D
"Oh Bother!" said Pooh, as he chambered another round.

Post Reply

Who is online

Users browsing this forum: daisygordoninc and 17 guests