[Boatanchors] Re: [Heathkit] DX-100
Duane Fischer, W8DBF
dfischer at usol.com
Wed Apr 18 22:17:43 EDT 2007
Bob,
When you get final answers to your questions, would you please do some
editing. Then cut/paste the Q/A into an e-mail and post it here on the list
for all to view. This will cause it to be placed into the list archives Bob.
Then anyone who goes to the HHI web site to find such information, clicking
on the search features for exploring the various QTH.NET archives, will
easily find your Q/A and enjoy the wonderful dialogue. Very helpful and
doing this also keeps the information stored and makes locating it
convenient. Thank you sir.
Note: If 'all' of you who post a question here, or on any QTH.NET list,
would do this, the archives would be loaded from tube socket pins to
filament heater with invaluable material!
Duane Fischer, W8DBF/WPE8CXO
dfischer at usol.com
HHI: Halligan's Hallicrafters International
http://www.w9wze.net
HHRP: Historic Halligan Radio Project
hhrp.w9wze.net
----- Original Message -----
From: "Bob Young" <youngbob53 at msn.com>
To: <heathkit at mailman.qth.net>; <boatanchors at mailman.qth.net>;
<rharrington at killingly.k12.ct.us>
Sent: Wednesday, April 18, 2007 8:47 PM
Subject: [Heathkit] DX-100
> Two questions:
>
> Some of you probably remember I bought a DX-100 and fired it up a few
> months ago and couldn't get more than about 100 ma of plate current, and I
> couldn't set the clamp control because nothing registered on the meter
> when I put it to an empty crystal position (stayed below 0 plate current).
> Someone mentioned setting it with the transmitter in operation (Glen Zook
> I think and probably others). I hooked it up to a Marconi 100 watt dummy
> load-wattmeter and was getting about 56 watts max. with my usual 100 ma. I
> then turned the clamp control clockwise and the plate current advanced, I
> stopped at about 250 ma and the Marconi meter was pegged, in fact this was
> on pos #8 it was still putting out about 100 watts on 6 I think.
>
> My first question is, is this a good way to set this control, in other
> words is it set close enough or should I check it some other way? When I
> got to about 250 ma it seemed to stop advancing or at least at the same
> rate it had been.
>
> Also the Marconi is a TF1020A/1 and when I bought it it was advertised as
> a 75 ohm load, on the front it says 50 ohms and also measure 50 ohms on a
> multimeter, is anyone familiar with this unit?
>
> Bob Young
> KB1OKL
>
>
> _______________________________________________
> List Administrator: Duane Fischer, W8DBF ** For Assistance:
> dfischer at usol.com ** $$ See the vintage area on the HCI web site -
> http://www.w9wze.org $$ Heathkit mailing list
> Heathkit at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/heathkit
>
>
>
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