[time-nuts] HP10514B Mixer Terminations

[Bob Camp]

Hi

If you are just changing C1 when you go to 150 pf, the mixer is still pretty heavily loaded by R1 and C2. The mixer is only "close" to open circuit with R1 (or R1 plus a coil) at 500 ohms.

Bob

On Mar 30, 2010, at 7:55 PM, Brian Kirby wrote:

> Here's a block/schematic of the last version I reported on last night.
> 
> Brian Kirby - KD4FM - Guntersville, Alabama
> 
> EWKehren at aol.com wrote:
>>   Good morning Brian.
>> 
>>   What do you use as an OFF SET oscillator?
>> 
>>   Thank you
>> 
>>   Bert Kehren  Miami
>> 
>>  .
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