[Boatanchors] National Crystal Question

[Pete Lancashire]

The old saying

A picture is worth a 1,000 words

-pete

On Tue, Jan 5, 2016 at 11:10 AM, Al Klase <ark at ar88.net> wrote:

> Keith,
>
> Sounds like the IF filter crystal from an early HRO receiver. They're
> about 1 3/8" O.D. x 1 1/4 tall.
>
> Al
>
> Al Klase – N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
>
> On 1/5/2016 1:56 PM, Keith Densmore wrote:
>
>> I found a small cylinder, perhaps two inches long,  chromed,
>>
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>>
>>
>>   with the National logo on it. Two prongs on bottom, it looks like a
>> crystal
>> perhaps from calibrator. Any idea what set it might belong to. I can send
>> a pix
>> if that helps.
>> 73, thanks,
>> Keith ve3gem/ve3ts
>>
>>
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