The AM Forum

I've got a very nice Crystaliner signal generator with all the crystals installed but no schematic.

Does anybody have a manual or schematic for this?

A quick Google found this:

http://www.jtauser.com/radios/201%20Crystaliner.jpg

Your 201 doesn't look like this one:

 (http://ic2.pbase.com/o2/08/578308/1/124182277.OZgkDB0y.sIMG_0951.jpg)

I believe that that one is a later model, it's got an attenuator on the output that mine lacks. They're all AC/DC transformerless units and I guess at least some of them used "curtain  burner" resistance cords.

I've pretty well searched Google but no real info has surfaced so far.

Some more info here:

http://www.radiomuseum.org/r/metropo_el_monitor_cristaliner_signal_generator.html

Here is a hand drawn schematic I got somewhere.
Cannot speak for it's accuracy as I have yet to compare it with the unit.

Bill,
KB3DKS

Bill,

That really helps, thanks!

I see that you've got the later model with the attenuator, and with this schematic I can install one in mine. I don't see how they get 400 cps modulation out of a xtal but maybe they're beating it against the reference osc. It'll be fun to see how this works out.

Thanks again

Greg

In looking at the tube pinout and the schematic I notice that the grid and plate are swapped. The pin numbers are correct but the grid and plate are in reverse order, in other words the RFCs go to the plates, not the grids. They are just three xtal osc. and the switch has to be open for the modulation to work, when it's closed it just shorts the grid to ground.

It'll be interesting to see how the xtals have held frequency.

Same schematic in the link I gave several days ago. He obviously opened the rig up and just followed the wires and drew the schematic.

Pete,
You are probably correct but the schematic will not show up on the link site unless you are a member signed in.
 I don't have that log in on this computer altho I am a member.
Bill

Bill:
It's just a link. http://www.jtauser.com/radios/201%20Crystaliner.jpg  You have to click it on; it takes you to the particular web site; and you view the schematic. You don't need to be logged in to "click a link".

To point to it and view it here in the body of a post, you would use the "img /img" command, but to view it this way, you have to be logged in.