[Amps] Pin Diodes

[R at contesting.com]

On Mar 8, 2006, at 9:11 AM, Ian White GM3SEK wrote:

> Somebody wrote (sorry, the direct message didn't arrive here):
>>> Do you have a schematic for such an "accelerator" circuit or can you
>>> point me at one in the published literature?
>
>
>> http://www.somis.org/D-a-07B.jpg
>>
>> Paul, W9AC
>
> There is also a circuit originated by K1KP, and publicized by K6XX,
> which does not need a high voltage rail. It works directly from the
> relay's existing supply rail.

What is the measured make time for a RJ-1A?

>
> This whole thing is a race against time to avoid hot-switching, so it's
> vital not to waste valuable milliseconds using a relay-driven PTT 
> output
> from the transceiver. It's got to be the fast solid-state output.
>
> The version of the K1KP/K6XX on my website includes a low-voltage
> interface that will work with even the wimpiest solid-state output.
> http://www.ifwtech.co.uk/g3sek/in-prac/best-of.htm#speedup
>
>
>
> -- 
> 73 from Ian GM3SEK
>
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>



Rich Measures, 805.386.3734, AG6K, www.somis.org