[DSP-10] small TCXO's

[Duncan Smith]

Johan,

The ECS part is temperature Compensated, not temperature Controlled.  It 
has no oven.

You can see this in the power consumption:

ECS-39SM        4.5 milliWatts
HCD-71  4.5 WATTS at startup, 1.2W stabilized at 25C ambient

The TCXO's are great on power, where the OCXO is like key down on a low 
power HT.

Here is another page of specs:

http://www.hcdresearch.co.uk/71.htm

d

At 09:32 AM 8/26/04 -0700, you wrote:
>Hi,
>
>FWIW:
>
>Digikey has a number of possibilities at reasonable
>prices. I recently obtained a voltage-controlled
>oven-stabilized 10MHz SMT part (DIGIKEY X493CT-ND) at
>around $15. The idea is to build a second outer-oven
>for this tiny SMT module as part of a Brooks Shera
>10MHz standard system.
>
>I use a TEMEC 10MHz TCXO SMD part built into a tiny
>Hammond box to replace the 10MHz crystal in the
>DSP-10. Once warmed up, that stays within ~10Hz of my
>HP Z3801A standard. It's OK for SSB, CW, and FM QSO's,
>but not perfect for serious work.
>
>73,
>
>Johan, KC7WW
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