[Milsurplus] Vibrator Replacement

[Paul Kraemer]

Ken et al
I uploaded folder with 6 pages pertinent to FET vibrator to Google drive
https://drive.google.com/open?id=0ByOIsJkiry7Sb1NERU9pS3R2M2c
Enjoy!
Paul K0UYA
-----Original Message----- 
From: Kenneth G. Gordon 
Sent: Wednesday, April 05, 2017 11:55 AM 
To: Paul Kraemer 
Cc: Milsurplus 
Subject: Re: [Milsurplus] Vibrator Replacement 

On 5 Apr 2017 at 11:48, Paul Kraemer wrote:

> Ray BTDT, made a four FET synchronous vibrator replacement for the old
> Heathkit vhf am transceivers. Used a 555 oscillator driving a divide by
> two chip to ensure perfect square wave drive. Worked so fantastic I
> experimented with other circuits and came up with a two FET
> "autotransformer" to convert 12v source to 24v.  Awesome simplicity
> and no ripple. As you mention FETS are the choice for power switching
> due to the very low on resistance Paul K0UYA 

Could you post a schematic of your circuit?

Ken W7EKB

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