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KD8TUT
10-06-2018, 05:31 PM
Hi guys... had this little baby gifted to me today by a ham friend... What do you think?

1595415955
ad4mg
10-06-2018, 05:51 PM
Does it have a USB port? :-D

One of our local geniuses will be along shortly to identify that valve, 'cause I sure can't!
kb2vxa
10-07-2018, 06:56 AM
At first glance it looks like the ubiquitous UV201A triode, but it's missing the evacuation tit on top and it has a bulb within a bulb. Once upon a time I had a collection of antique tubes for servicing antique radios, I thought I knew most of them, but this is a strange one.
suddenseer
10-07-2018, 11:40 AM
I helped restore a WW2 vintage European radio that had tubes shaped like that, it was German I think. I was a teenager the last time I saw bulb shaped. If it is American, then it is more antique than Eddie.
KD8TUT
10-07-2018, 12:16 PM
I helped restore a WW2 vintage European radio that had tubes shaped like that, it was German I think. I was a teenager the last time I saw bulb shaped. If it is American, then it is more antique than Eddie.

It's a Tung Sol ts227 marked tested good in 1934 :)
PA5COR
10-07-2018, 03:46 PM
See? long before i was born...


It's a Tung Sol ts227 marked tested good in 1934 :)
WZ7U
10-07-2018, 08:02 PM
What does a Tung Sol ts227 go in? Audio or rf application?

Not having any luck with a search engine finding that particular tube.
suddenseer
10-07-2018, 08:38 PM
See? long before i was born...yeah, Eddie probably used those back in the 30's lol.
KD8TUT
10-07-2018, 09:39 PM
What does a Tung Sol ts227 go in? Audio or rf application?

Not having any luck with a search engine finding that particular tube.

It's a type 27. Many manufacturers made them under license from possibly Westinghouse. I think from what I've read this would be used as an audio preamp. Was introduced in the 1920s.

http://vinylsavor.blogspot.com/2015/06/tube-of-month-27.html
WØTKX
10-07-2018, 10:20 PM
http://vinylsavor.blogspot.com/2015/06/tube-of-month-27.html

http://1.bp.blogspot.com/-vpGKok6Lvn8/VYrc8XojeSI/AAAAAAAALPU/OAf3hwfGgdA/s400/RCA-UY227.jpg


(http://vinylsavor.blogspot.com/2015/06/tube-of-month-27.html)
KG4CGC
10-07-2018, 10:39 PM
A wise man once said, "You only ever get one 1L6 in life."
WØTKX
10-07-2018, 10:55 PM
I rebuilt a Hammarlund Super Pro, it used these old fashioned form factor tubes...

Was a great experience. the "27" is listed as an audio amp, also used as an RF detector

Wonder if you could make a regenerative one tube receiver with that, might be amusing
N8YX
10-08-2018, 08:54 AM
Just wait until the audiophilesphools discover these...