The handiest thing for that remains the 'Huff and Puff' stabilizer which can lock down most PTO/VFOs.
http://www.holmea.demon.co.uk/Stab/Stab.htm http://www.antiqueradios.com/forums/viewtopic.php?t=145530 http://www.cumbriadesigns.co.uk/x-lock.htm I have the Xlock 2.0 VFO Stabiliser from Cumbria Designs mentioned just above-which I plan to add to my SN XXX3 Drake R7 (it was the 3rd production-prototype. Ed Tanton website: http://www.n4xy.com <http://www.n4xy.com/> All emails <IN> & <OUT> checked by Norton AntiVirus with AutoProtect -------------------------------------------------- Wag more / Bark less -------------------------------------------------- From: [email protected] [mailto:[email protected]] On Behalf Of K9sqg Sent: Tuesday, September 13, 2011 2:00 PM To: [email protected]; [email protected] Subject: Re: [Drakelist] FS-4 I have owned several FS-4s over the years but do not have any now. The FS-4 can be considered as stable as a crystal BUT it does not add anything to overall stability to the R4C, for example. Why? The main part that contributes to drift is the PTO so whether one uses and FS-4 or plug in crystal, the stability is basically unchanged. The FS-4 is handy for SWLing, WARC, etc. but at today's prices, only the rich can afford them... ///snip
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