[Boatanchors] [Glowbugs] WTB - REAL FT-243 80 Meter crystals

[D C _Mac_ Macdonald]

My suggestion would be to use the "modified Pierce" oscillator circuit of grid and screen of a 6AG7!  Put 105 or 150 Volts regulated (0C3 or 0D3) on the screen and take the output off the plate.  The Walter Ashe WAT-25 circuit is a good example.  Supposedly VERY gentle on crystals.  You can find the circuit with a Google search.  Plenty enough to drive a 6L6! 
 
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk hotmail com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
* * * * * * * * * * * 
 

 
> From: holden7471 at msn.com
> Date: Sat, 29 Aug 2015 11:31:21 -0700
> To: bcarling at cfl.rr.com
> CC: boatanchors at mailman.qth.net; qrp-l at mailman.qth.net; cwopr at embarqmail.com; tetrode at googlegroups.com
> Subject: Re: [Boatanchors] [Glowbugs] WTB - REAL FT-243 80 Meter crystals
> 
> Just a caveat on the "stuffed" FT-243 crystals: they DO NOT work in higher current xtal circuits! They drift badly, and will most likely fail quickly from the current. Later (late 50's and 60's) circuits should be ok but beware if you are going to try and use them in early crystal circuits! From dismal first hand experience with a couple of different transmitters! 
> 
> Howie WB2AWQ
> 
> Sent from my iPhone
> 
> On Aug 29, 2015, at 11:24 AM, "Bry Carling" <bcarling at cfl.rr.com> wrote:
> 
> > Hope to hear ALL of you this fall and winter on 3579!! The much rumored new "COLORBURST COMMANDOS" GROUP is poised to spring into action soon!!!
> > 
> > Keep watching for more updates!!
> > 
> > Best regards - Brian Carling
> > AF4K Crystal Co.
> > http://af4k.com
> > 
> > Tel: 321-262-5471
> > 
> > 
> > 
> > 
> >> On Aug 29, 2015, at 1:56 PM, Bill Stewart <cwopr at embarqmail.com> wrote:
> >> 
> >> Howie, I have found, that the 'stuffed' FT-243 holders from AF4K work fine in about
> >> all of my BAs...less pricey than eBay too. If you are able to make some hamfests, keep
> >> an eye out for 'em there too. And, the HG-10B vfo works well with the DX-60. I also
> >> expect the little 'color burst'...think that's what they are called...xtals would probably
> >> work fine and usually they are on eBay real cheap...and other places as well. 
> >> GL...73 de Bill K4JYS
> >> 
> >> From: "Howard Weinstein" <wa3mck at gmail.com>
> >> To: "QRP-L Mailing List" <qrp-l at mailman.qth.net>, "Glowbug Tetrode" <tetrode at googlegroups.com>, "Boatanchor group" <boatanchors at mailman.qth.net>
> >> Sent: Saturday, August 29, 2015 12:31:58 AM
> >> Subject: [Glowbugs] WTB - REAL FT-243 80 Meter crystals
> >> 
> >> Gang,
> >> 
> >> Getting ready to get on 80 CW as the weather cools. I'd like to purchase several REAL FT-243 80 Meter crystals to use with my DX-60 HR-10B station. No specific frequency - just close to the bottom of the band.
> >> 
> >> Prices on that "watery place" are out of control... 
> >> 
> >> Thank you
> >> 
> >> 73 de Howie WA3MCK