>I believe that Ameritron makes one as does Centaur called a 'Cricket'.
> John, W2CYA
>
Thanks for the tip, John. However, buyers need to be aware that there
are two types of pulsers: the audio-type and the keyer switch type. The
audio-type couples through the mic. jack. For a correct tune-up, it Must
generate a Pure sinewave. The switch type plugs into the CW key jack.
It alone is foolproof // strike that // virtually foolproof. .
>measures wrote:
>
>> >
>> >There have been a couple of recent references to the use of "pulsers" to
>> >assist in tuning final amps. I think I've heard these occasionally on the
>> >bands. At least I've heard some strings of rapid, short pulses that I took
>> >to be some kind of tuning aids; kind of a woodpecker sound.
>>
>> Some folks use keyers sending dits at c. 50wpm.
>> >
>> >How do these pulsers work,
>>
>> They switch on and off at around 30 times per second.
>>
>> >and where do you get them?
>>
>> You can easily build one. A 30% duty-cycle pulser diagram is on my Web
>> site. The circuit is not copyrighted, so if you want to go into the
>> buisness, have at it. Virtually all SSB amplifiers benefit from being
>> tuned up this way.
>>
>> cheers, Ron
>>
>> - Rich..., 805.386.3734, www.vcnet.com/measures.
>>
>> --
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>
- Rich..., 805.386.3734, www.vcnet.com/measures.
--
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