[Boatanchors] Pair of Crystals needed

[Bill Cromwell]

Hi Bob,

You could use them in a solid state oscillator maybe with a SS buffer to 
drive a tube.

I have some of those and an itch to play. If I get a round tuit before 
the weekend is over I'll post the results.

73,

Bill  KU8H


On 03/09/2014 12:21 PM, Robert Nickels wrote:
> On 3/9/2014 9:21 AM, Bill Cromwell wrote:
>> Crystals don't pull very far and the amount they will pull is a small 
>> percentage of the operating frequency. 
>
> True, but ceramic resonators can be pulled a lot and they are actually 
> cheaper than "a dime a dozen" - one Thailand ebay seller is offering 
> 50 pcs for $3.99 shipped. Search for "455 resonator".
>
> These are not precision devices (typical spec: Frequency Deviation: 
> ≤±0.4%) - so you will definitely have to provide a trimmer capacitor 
> or other means for setting each resonator on the desired frequency. 
> I've only used them in solid state circuits but if the voltage and 
> current in your oscillator is kept low, I'd bet they will work in tube 
> circuits as well. Cheap enough to experiment and find out!
>
> 73, Bob W9RAN