Comments on: Moorhead labs and Western Electric Vacuum Tubes

By: denshisan

denshisan — Sun, 14 Mar 2010 06:04:32 +0000

I feel nostalgic for an initial vacuum tube.

By: AllAmericanFiveRadio

AllAmericanFiveRadio — Sat, 13 Mar 2010 20:50:42 +0000

Thanks. I think these are the earliest vacuum tubes I have. I have friends who own earlier tubes like a Lee de Forest Audion. An amazing part of radio history.

By: ess1898

ess1898 — Thu, 11 Mar 2010 12:19:54 +0000

I would love to see the radios the signal corps used in WWI
I don’t see any keying on these tubes, how do you tell which way to put it in the socket?

By: AllAmericanFiveRadio

AllAmericanFiveRadio — Thu, 11 Mar 2010 07:01:14 +0000

It would be amazing to see one of those receivers. The key is a small pin on the side of the base of the tube. The tube sockets have a metal sleeves with a one vertical slot. The pin fit down the slot and then you turn the tube to lock it in. I have two videos on a 1925 Magnavox radio, I think you can see the tube sockets there. Thanks.

By: KC2PIZ

KC2PIZ — Mon, 08 Mar 2010 02:36:37 +0000

Wow, those are really nice! I have a VT-1
also but the filiment is open. Is 203 A the same as 01A

By: BadEditPro

BadEditPro — Fri, 05 Mar 2010 10:48:41 +0000

Like you said, where have those tubes been for the last 90 years… What roads have they gone down to find you In NC? No way to know… Fascinating. JC

By: AllAmericanFiveRadio

AllAmericanFiveRadio — Wed, 03 Mar 2010 05:49:58 +0000

For the VT-1/203A the filament voltage is 2.5v @ 1.1A
The 01A has a 5v filament. I am not sure what the pin out is of a VT-1, have to look it up.
Thanks.

By: AllAmericanFiveRadio

AllAmericanFiveRadio — Mon, 01 Mar 2010 07:44:41 +0000

It would be very interesting to know who the original owns were, to late to dust for prints. Thanks.

By: Lockemeister

Lockemeister — Fri, 26 Feb 2010 02:04:58 +0000

Thank you for showing this early tube history. The photographs are excellent. I wonder what the S on the bottom of the Moorhead tube means.

By: AllAmericanFiveRadio

AllAmericanFiveRadio — Thu, 25 Feb 2010 05:13:48 +0000

That ‘S’ may be the manufacture of the bakelite base, maybe? I’ll keep looking or maybe another YouTuber will know. We are looking back, close to the beginnings of all electronics. And tube audio amplifiers sound the best still today. Thanks.