hello Jim hey I got your check yesterday and the tubes will go out on monday!!
I'll get it fixed somehow.. I don't discourage too easily!! R ---------- Original Message ----------- From: "Jim candela" <[EMAIL PROTECTED]> To: "Discussion of AM Radio" <[email protected]> Sent: Sat, 21 Aug 2004 10:50:22 -0500 Subject: RE: [AMRadio] Eico 722 VFO dial slippage > Ronnie, > > I recall a similar mechanism in the Heathkit VF-1 VFO. These tend > to slip over time, and I was not too successful at fixing mine, in > fact I chunked it! If yours is similar, and yet not meshing > together; man, maybe it never worked, and was built with the wrong parts?? > > A rather odd thought occurred to me regarding this, and maybe some pulleys > from an Erector set, and a suitable sized O-ring would do? You can > also get a Vernier drive somewhere, and make that work. Sounds like > a challenge... > > Good Luck with that VFO! > > Regards, > Jim Candela > WD5JKO > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of James M. Walker > Sent: Friday, August 20, 2004 10:02 PM > To: Discussion of AM Radio > Subject: Re: [AMRadio] Eico 722 VFO dial slippage > > Ronnie, > I run a 722/720/730 combo on 40 meters. Been using the 722 for about > 4 years now. A question, do you have the full manual for the 722, it > might shed so light on the dial problem. As for stability, mine is > very stable after a ten minute warm-up, if I am going to use the rig > I turn it on when I go in the shack, go get a coffee and come back > then it is stable. > > I also ordered crystals for the 720, but I found they are high/low in > frequency, go figure, 7290 xtal is at 7291.5 and 7295 is at 7297.5, hum. > Good luck with the VFO hope you get it worked out. > Jim > WB2FCN > > "ronnie.hull" wrote: > > > > well if you ever get an opportunity to pry it out of its case, you will > see > > that the dial mechanism is very simple. The knob is hooked to a brass > shaft > > that goes straight back, and has a grooved spot on back. Obviously, > looking > > at mine anyway.. the edge of the dial itself rides in that groove and that > is > > what turns the dial, when you turn the knob. Mine is not riding in that > > groove, nor can I see any way to make it go back there. > > > > thanks > > > > Ronnie > > > > ---------- Original Message ----------- > > From: "Merz Donald S" <[EMAIL PROTECTED]> > > To: "Discussion of AM Radio" <[email protected]> > > Sent: Fri, 20 Aug 2004 14:25:52 -0400 > > Subject: RE: [AMRadio] Eico 722 VFO dial slippage > > > > > I have one of these but I have not seen this problem. Mine is not > > > stock--it has a tube change and some modifications around the > > > changed tube (from QST if I remember right--I have the mod article). > > > It is quite stable after warm up and completely useable for AM. You > > > don't hear much about the Eico but I like mine. > > > > > > 73, Don Merz, N3RHT > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] Behalf Of ronnie.hull > > > Sent: Friday, August 20, 2004 1:38 PM > > > To: [email protected] > > > Subject: [AMRadio] Eico 722 VFO dial slippage > > > > > > I recently became the proud father of a Eico 722 VFO. This little > > > rig is very very stable for its age. Hell Im impressed!! Looks good > > > on the scope too. No A/C ripple in the p/s though it has original > > > caps. I'm going to change them out just cuz.. > > > > > > the only problem is has is that the dial adjust knob on the front > > > will not turn the dial. The dial is edge driven by a spring loaded > > > brass shaft that has a groove in it that I presume the edge of the > > > dial sits in. Trouble is, it doesn't. I don't know if its possible > > > that the dial has shrunk? But..its about 1/32 away from touching the > > > shaft. > > > > > > I can manually turn the dial, and the dial string will move the > > > variable cap and move the frequency of the unit. > > > > > > Does anyone have experience with this rig? and this problem? > > > > > > thanks in advance > > > W5SUM - Ronnie > > > ______________________________________________________________ > > > AMRadio mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/amradio > > > Help: http://mailman.qth.net/mmfaq.html > > > Post: mailto:[email protected] > > > > > > The information contained in this e-mail may be confidential and is > > > intended solely for the use of the named addressee. Access, copying > > > or re-use of the e-mail or any information contained therein by any > > > other person is not authorized. If you are not the intended > > > recipient please notify us immediately by returning the e-mail to > > > the originator.(A) > > ______________________________________________________________ > > > AMRadio mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/amradio > > > Help: http://mailman.qth.net/mmfaq.html > > > Post: mailto:[email protected] > > ------- End of Original Message ------- > > > > ______________________________________________________________ > > AMRadio mailing list > > Home: http://mailman.qth.net/mailman/listinfo/amradio > > Help: http://mailman.qth.net/mmfaq.html > > Post: mailto:[email protected] > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > --- > Incoming mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.742 / Virus Database: 495 - Release Date: 8/19/2004 > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.742 / Virus Database: 495 - Release Date: 8/19/2004 > > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > ------- End of Original Message -------
