Struggling to find info - needing assistance

[Dave Edwards]

Mike... I have several Graymark unbuilt kits. A bunch of 510's and a couple 
of 506C's
They were kits for educational purposes. The manuals always had a lot of 
spooky mumbo-jumbo about how things work, and why oscillators oscillate (or 
not). Way more information than Heathkit needed to provide.
I bought mine years ago...when tube stuff was junk, before it became 
collectors items. I thought if I ever got married and had kids..We'd build 
them together. Well, my first is now 7 years old, so it won't be long now!!!
Anyway, my assembly manuals say that Graymark was a division of Lab-Volt 
Ltd.
Graymark was in Los Angeles, and Lab-Volt was a Canadian firm. They seem to 
still be around, and have a web 
page.....http://www.labvolt.ca/i1/i11/ia11.html
You might give them a try. They still have Graymark downloadable 
documents....just a couple decades newer than our tube-type kits.
Good Luck!!
....Dave
----- Original Message ----- 
From: "Mike Miller" <ka9rqw at MCHSI.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Monday, July 18, 2005 12:03 AM
Subject: OT: Struggling to find info - needing assistance


> Hey all,
>    Having problems, and can't think of a more knowledgeable place to turn 
> for information-
>
>    In cleaning out my garage, I came across an old (and not yet completed) 
> kit I can't seem to find the instructions for or the tube listing for. 
> It's a Graymark 505b transmitter, still in the original (though very 
> shopworn) box, with some of the original parts still packaged inside. 
> It's partially assembled, and appears as though someone has tried, 
> although unsuccessfully, to apply power to it.  I've considered restoring 
> it and completing it, since the board's not going to be in pristine 
> condition anyway, most likely, due to the damage to it from the power 
> applied (there may likely have been a wiring error that caused it to arc 
> when power was applied, I can't tell without a schematic, but that would 
> be my guess).
>
>    I'm looking for any information I can find for this unit...schematics, 
> parts list (though, obviously, I could generate that from a schematic), 
> assembly instructions, etc.  Any help or assistance would be greatly 
> appreciated.  I've already checked my usuals (BAMA, eserviceinfo, mods.dk, 
> and so forth) already, with no luck, so those are exhausted.  I've also 
> googled for what I would consider the obvious (graymark, graymark 505, 
> graymark 505b, graymark transmitter), with no luck either.  Anyone got any 
> other suggestions?
>
> Apologies for directions away from the green.  Thanks!!
>
>       --Mike, KA9RQW
>
>
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