[Heathkit] DX-100

[Tim Kass]

Well good luck with that, I totally agree with Jim on this, I have a DX-100 
as well, got it for a song last year, powered it up but no output ....  
gonna break it back out and find the problem with it hopefully.  I will be 
using either a Hammarlund HQ-145AX or a SuperPro 210X .... any suggestions 
about a TR switch?

73, Tim
K8WBL


>From: "James M. Walker" <chejmw at acsu.buffalo.edu>
>To: "Bob Young" <youngbob53 at msn.com>,"heathkitlist" 
><heathkit at mailman.qth.net>
>Subject: Re: [Heathkit] DX-100
>Date: Thu, 16 Mar 2006 16:29:27 -0500
>
>Howdy Bob,
>First off before you go changing components and such.
>If you have a variac available I would make sure the rig
>is not in transmit mode, and after doing a visual check
>top and bottom, try bringing it up to around 60 VAC
>and letting it just sit for a bit while monitoring for smoke
>or smells etc. The visual inspection should tell you quite
>a bit, since you have the manual, you want to look for
>obvious differences from what the manual says it looks
>like. Once you're satisfied that everything seems in the
>right places, then bring it up to 60 and give it a chance
>to come up to close to operating temperature. Check that
>pilot lamps work, all tubes light up, and things like that.
>
>Once you are comfortable, that nothing is obviously wrong
>bring it up to full voltage (115 VAC) and again let it sit in
>standby for a while. The do a few voltage checks. High voltage
>is one also check the filament volts to the tubes, screen supply volts
>and bias to both the 6146s and the 1625s. If all is well then yes
>you can load it up into a light bulb (100 watts or so). If it loads OK
>then you want to see where it is frequency wise, have a receiver
>you can listen to the VFO/OSC in the receiver when you put the
>rig in CW mode and with it in standby.
>
>At this point you may want to try a little AM with it if all else is
>A-OK. While using it into the light bulb, you will see the bulb
>brighten a little, if you have your mike level to high.
>
>If you get stuck fire off an email, I am usually around the lists,
>especially this one. Time is usually not a problem, day time,
>night time, anytime. I usually check on the hour.
>
>Oh and enjoy the new rig, I enjoy mine, got 4 here for various
>applications.
>Jim
>WB2FCN
>http://eshop1.chem.buffalo.edu
>
>----- Original Message -----
>From: "Bob Young" <youngbob53 at msn.com>
>To: "heathkitlist" <heathkit at mailman.qth.net>
>Sent: Thursday, March 16, 2006 11:45 AM
>Subject: [Heathkit] DX-100
>
>
> > Hello everyone, this is my first post. I just bought a DX-100 
>transmitter
>
> > which is all there and in decent cosmetic shape and expect to take both
> > tech. and general licenses soon, also got a nice old Astatic mic on a
>little
> > stand. I haven't powered this up yet, what precautions should I take
>beside
> > the obvious testing of the tubes and checking the circuitry (it is
>supposed
> > to work although I don't know how long it has been). Change the filter
>caps?
> > Is the old 100 watt light bulb trick still an OK way to check them to 
>see
>if
> > they work?. I have a manual with it. I've been into boatanchors and
>consoles
> > for a long time and have had some electronic training in the past but 
>have
> > never owned a transmitter. Any advice would be appreciated,
> >
> > Bob Young
> > Millbury, Ma
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>
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