[ARC5] ARC-5 circuit

[Mike Hanz]

zeno wrote:

> In the schematic for these transmitters, the Xtal is shown with only 
> two connections, as would be expected for a regular Xtal, however the 
> metal-housed Xtals in these units plugs into an octal socket and has 
> wiring underneath to more than two pins. What is up with this?


"Some socket pins are being used as solder lugs..."  :-)

> How do I understand the schematic which only shows two pins being 
> connected. What are all those other pins on these Xtals? 


NC - no connections.  See 
http://members.cox.net/aaf-radio-4/DC-8-H_crystal_holder.jpg for an 
internal look.

> Also what is that little handle like knob on the top of these ARC5 
> Xtals, is that simply for pulling them out?


Yup.  Sometimes I wish they had attached those little handles to the 
vacuum tubes as well - especially in the receivers.

You're batting a thousand so far...keep it up!

73,
Mike