Re: CM11A hangup: Any better products?

[nobody@xxxxxxxxxxxx (Dave Houston)]

How do the two 1N4148 diodes affect the magnitude of the signal on pin 1?
Don't they clip at ±0.6V?

Joerg <notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote:

>Hello Dave,
>
>>      http://www.edcheung.com/automa/lm465.gif
>>
>> Could you use it to explain your procedure?
>
>Ok, it's been a long time but I'll try.
>
>I took a toroid of about 1" OD, 43 material. 77 material is probably
>better but I just had that on the desk. I wound about 20 turns bifilar
>onto it, insulated wires, about one twist every half inch. The secondary
>to a short coax which went into the scope's input, with 499 Ohms in
>series with the winding. Primary one side to module ground, the other
>side via a 5K resistor in series with a 100pF cap to pin 1 of the 78561.
>Could have been the other side of the 33pF cap, I don't remember
>exactly. Then I peaked the inductor while sending lots of commands on an
>unused code, to avoid clacking the relays too much.