[TenTec] In praise of older technology AM transmit with Ten Tec rigs

[bob barnes]

well i have a pair of 4-1000s there really is not that much involved i did not run mine of am i have seen amps ran that way. my pair of 4-1000 probably weighs in around 300lb but i dont have a modulation transformer or a choke in mine.  mine will run on a circuit of 30a i have never seen the lights dim with it but i have 5 huge capacitors on the bottom with the plate transformer.  it runs about 6500v on the plates.  i use a piece of copper pipe tied to a broom stick handle to drain the caps when i want to work on it.

whatever output i ran i always got fine reports.  primarely on 75 mtrs as on the other bands its just too much.  it is an entertaining amp let me say that and it is so fun to watch those plates on the 4-1000 get cherry red but never burn up.


bob k0wtz


all things are possible in Christ Jesus our savior

--------------------------------------------
On Tue, 2/25/14, Tony <va3dwi at gmail.com> wrote:

 Subject: Re: [TenTec] In praise of older technology AM transmit with Ten Tec rigs
 To: tentec at contesting.com
 Date: Tuesday, February 25, 2014, 3:27 PM
 
 Probably dimmed the lights in a block
 radius too hi...hi.
 
 Tony VE3DWI.
 
 Sent from my BlackBerry 10 smartphone on the Bell network.
   Original Message  
 From: Mike Bryce
 Sent: Tuesday, February 25, 2014 13:40
 To: Discussion of Ten-Tec Equipment
 Reply To: Discussion of Ten-Tec Equipment
 Subject: Re: [TenTec] In praise of older technology AM
 transmit with Ten Tec rigs
 
 Oh, yeah!
 
 I’ve heard those guys. 
 
 I remember one guy telling the group that his plate
 modulation transformer had to be lowered into the basement
 with a fork lift. They needed to cut a hole in the floor for
 the it to fit. 
 
 He sounded like WDBM.
 
 He ran a pair of 4-1000s, modulated by a quad set of 813.
 
 The guy was a retired radio engineer from a radio station.
 most of the audio stuff he got when the station he worked
 for retired it.
 
 I bet when it fired it all the way up, you cold see it
 leave!
 
 Mike, WB8VGE
 SunLight Energy Systems
 The Heathkit Shop
 http://www.theheathkitshop.com/
 J e e p
 o|||||||o 
 
 A man with one clock knows what time it is. A man with two
 clocks is never sure. 
 
 
 
 On Feb 25, 2014, at 1:10 PM, bob barnes <k0wtz at yahoo.com>
 wrote:
 
 > mike you have never heard a pair of 4-1000s driven by a
 kw on am have you? illegal yes but oh so fun! i knew the
 guys in our group that had that capability and you never
 heard anything just like it. it sounded like kmox st. louis
 and you know what their audio is. fantastic!
 > 
 > bob k0wtz
 > all things are possible in Christ Jesus our savior
 > 
 
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