[HomeBrew] Grid-dip Meter Rebuild

[Dieter Mayr]

Jeff,

Solid state dip-meters often have too less output power to drive
a antenna bridge. I dont have a GDO, but my Monacor solid state
meter delivers too less power to dirve my antenna bridge directly.
There was a article in QST, describing a little amplifier for these
application. If you are interested, i will search out, in wich issue
it was.
Maybe you have the chance to try it out with a solid state dip meter,
if the delivered power is enough for your bridge, so you would not need any
aditional amplifier.
Have fun and good luck with rebuilding your dip meter.

73
 Dieter, OE2CDM

----- Original Message ----- 
From: <n2lxm at juno.com>
To: <homebrew at mailman.qth.net>
Sent: Monday, March 21, 2005 10:51 PM
Subject: [HomeBrew] Grid-dip Meter Rebuild


> ** Please do NOT cross-post messages when posting to HOMEBREW **
>
> Greetings All,
>
>
>  Dose any one have any thoughts on converting and old tube type Grid-Dip
> meter to Solid State?. I have a Millen 90651 GDO that I purchased back in
> High School, it still works well and I use it often on the bench. But now
> with the weather turning warmer I want to be able to use my Millen
> Antenna Bridge out side. And I am getting tired of pulling an AC
> extension cord out every time I want to play with the antennas. I
> purchased another 90651 from the " E " place, it has a bad power
> transformer, but I knew that went I purchased it. My idea is to strip it
> down, clean it up and rebuild it along the lines of the Millen 90652. I
> have found plenty of information on the 90652, schematic and parts list.
> It seems that the tuning capacitor is the same in all the Millen series.
> Any thoughts and idea's will be welcomed.
>
>                                          Jeff N2LXM
>                                           American
>                                             Patriot
>                                 Amateur Radio Operator
>                          Proud Father of Two U.S. Marines
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