[Boatanchors] D-104 for DX-100 crystal or dynamic and what impedance?

[Brian Harris]

Indeed, IFF (if and only if) the element is good.  

Sent from my iPhone

> On Mar 12, 2017, at 9:02 PM, Rob Atkinson <ranchorobbo at gmail.com> wrote:
> 
> you'll get a zillion different answers.  Go with a D104 crystal
> element and put a 10 meg resistor on the grid of the input triode and
> you'll be okay.  Crystal elements need high Z and 10 meg will give you
> the full frequency response of the element which is a 20 dB rise from
> 100 cps up to 3 kc and a 20 dB roll off from 3 kc to 5 kc.  You can't
> beat the D-Wonderful when it's got a 10 meg load.
> 
> 73
> 
> Rob
> K5UJ
> 
>> On 3/12/17, Howie WA3MCK <wa3mck at gmail.com> wrote:
>> Group,
>> 
>> I'm preparing to put my old (but refurbished) DX-100 on the air as soon as
>> possible.
>> I do not have a microphone but I do remember that almost EVERYONE utilized
>> an Astatic D-104.
>> 
>> What I don't remember is:
>> 1.  What element is preferable? Crystal or dynamic, and
>> 2. What impedance should I go with?
>> 
>> It's been about 40 years since I've had her on the air and I have forgotten
>> quite a bit about this rig.
>> 
>> For the past five or six years I've had my highly modified (600 ohm
>> balanced audio input) DX-60 on AM with a fancy studio mike, processor, and
>> other embellishments.
>> 
>> Recommendations, advice, and references solicited.
>> 
>> 73 de Howie WA3MCK
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