Tom Hammond <[EMAIL PROTECTED]> made an utterence to the drakelist gang ---------------------------------------------------------------------- Hi Jim:
And many thanks for posting this info. If anyone is considering building this kit, I'd suggest you order your PLL ICs very soon! Before they're all gone. At about $4 each, they're not terribly expensive, and it might not hurt to buy a couple extras.
Fred (FAR Circuits) does NOT presently include this component (PLL) in the 'kit' of devices which he offers as an available order option with his PC boards for the Hageman Drake Xtal. Eliminator kit.
For those of you who have possibly been holding off building one of these kits, please allow me to say that I've now build three (3) of them and they work WONDERFULLY!
I had some problems with the first kit, but they were resolved. The quality of the initial run of PC boards was less than desired... because the Hageman boards were drawn to be manufactures with plated-thru-holes, which FAR Circuits cannot provide. As a result, the component pads were too small and when component holes were drilled, many of the pads were virtually "drilled out", leaving little or not copper to solder to. Additionally, the land widths were pretty small and some easy to lift during soldering.
I redrew the PC boards, using Hageman's component placement, but using wider lands and larger solder pads. FAR Circuits now uses my board layouts, which have proven much easier to build with. Additionally, FAR offers a display adapter board which allows you to plug-attach the display, rather than having to wire directly to it. See my documentation comments on the Hageman Drake Xtal. Elim. at www.n0ss.net for more info.
If you do decide to build this kit, either into am MS-4 speaker enclosure, or into a separate enclosure, such as the Hammond 1598D enclosure, I can supply printed vinyl front panel decals for these devices... I can also supply pix of completed front panels if you are interested. I have NO INTENTION of making $$$ on the sale of the decals, but I _do_ want to recover the printing/mailing costs.
73,
Tom Hammond N0SS
At 11:10 PM 4/28/05, Jim Pruitt wrote:
Hello fellow Drake fans.
I thought I would share this information with the Drakelist:
About 2 weeks ago I received a message from Digikey. They said that Freescale had notified them that the MC145170D2 is being declared obsolete and were notifying me because I had bought one of the parts from them in the past. As I read Motorola's spec the SOG layout is the same as the 16 pin SOIC (someone correct me if I am wrong). I then tried to place an order for the part from Digikey but they had placed a minimum quantity order of 2500 on the part (?)! I then went to Newark's web site and tried to order some of their 01C4669 for the Hageman Crystal Eliminator (FS4 Clone) from the June 2004 issue of QST. Newark's online order web site also specified a minimum quantity on the MC145170D2R2 was 2500. I called Newark and asked why I had been able to order a single one before. The gal said that they had 1300 of that device as loose parts and as long as they had loose parts the 2500 quantity order did not apply but that they had had that 1300 for a while. The order has to be made as a phone order though so it can not be tracked online. I asked her why I could not still place single quantity orders online like I had done a couple of months before but the gal did not have an answer.
The MC145170DT was not mentioned but that part is a 16 pin TSSOP layout and will not fit the board correctly.
This is just a heads up to anyone that is still thinking about building the Hageman crystal eliminator but has not yet ordered parts. The MC145170D2R2 may become hard to find very shortly. I do not see this part listed as being part of FAR circuits minikit for this part but Fred may have a few of thes parts on hand (I have not checked with Fred to find out if he does stock this part).
Thank you.
Jim Pruitt
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