Amps
[Top] [All Lists]

Re: [Amps] Pulls?

To: "amps@contesting.com" <amps@contesting.com>
Subject: Re: [Amps] Pulls?
From: RAY FRIESS <rayfrijr@msn.com>
Date: Thu, 8 Dec 2016 00:44:18 +0000
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Speaking of pulls ..   I was a broadcast engineer about 35 years ago and we 
would regularly pull tubes when they were down to about 90% of their rated 
readings in the transmitter.  We would throw them out and replace them with new 
ones, until I started saving the pulls and taking them home.

As a result, I have about a dozen 4-125 and 4-250 tubes which were primarily 
used in the modulator section of our 5 KW transmitter.   They have been in 
storage at my home ever since and are still, for all intents and purposes, 
brand new.  They look brand new even, considering that they were replaced when 
they were at 85 to 90% efficiency.  I kept them thinking they would work great 
for ham linears for anyone who was building a linear.


If there is any interest, let me know.....   Most of them I rewrapped in their 
original padding and put back in their original boxes and stored in a safe 
place.


________________________________
From: Amps <amps-bounces@contesting.com> on behalf of Catherine James 
<catherine.james@att.net>
Sent: Wednesday, December 7, 2016 9:50 AM
To: amps@contesting.com
Subject: Re: [Amps] Pulls?

And how do you find these deals when broadcast stations with older transmitters 
do a pull?

I hear a lot of discussion around how great pulls are as an affordable source 
of good tubes, but it is always vague and never tells us how we can get in on 
the fun.  Is this one of those "you have to know somebody" situations?

73,
Cathy
N5WVR

--------------------------------------------
On Wed, 12/7/16, Fuqua, Bill L <wlfuqu00@uky.edu> wrote:

 Subject: RE: [Amps] Pulls?
 To: "Catherine James" <catherine.james@att.net>
 Date: Wednesday, December 7, 2016, 4:25 AM

   Most pulls today are from broadcast stations using older transmitters. Also, 
from SK estates.
 73
 Bill wa4lav
 ________________________________________
 From:
 Amps [amps-bounces@contesting.com]
 on behalf of Catherine James [catherine.james@att.net]
 Sent: Tuesday, December 06, 2016 11:13 PM
 To: Amps Group
 Subject: [Amps]
 Pulls?

 Where do you guys get your tube pulls?

 I see many, many mentions of pulls from medical or other devices,
 but I have never seen these offered. Have they dried up? Or
 do they all go up on eBay at crazy prices?

_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
Amps Reflector - Contesting.com Ham Radio Mailing 
Lists<http://lists.contesting.com/mailman/listinfo/amps>
lists.contesting.com
Welcome to the Amplifier mailing list! This list is intended for the exchange 
of information on HAM RADIO Amplifiers related topics ONLY. Our goal is to keep 
...


_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps

<Prev in Thread] Current Thread [Next in Thread>