Author Topic: PCB design job  (Read 7022 times)

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Offline rhbTopic starter

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PCB design job
« on: June 02, 2023, 11:42:21 pm »
I'd like to commission an OSHW PCB layout for Chris Trask's crystal tester:

https://www.moarlabs.com/moarlabs/resources/subjects/circuits/analog%20circuits/oscillators/oscillators%20-%20crystal/crystal%20test%20set%201.pdf

I want to make a few minor changes such as the use of a MOSFET switch and a GPIB interface based on the AR488 to flip the MOSFET switch.  This will allow me to use my HP 5386A  frequency counter to measure crystals and fill out a spreadsheet with me only numbering and inserting crystals on cue.

Pleased send me a PM if you're interested.

Reg
 

Offline rhbTopic starter

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Re: PCB design job
« Reply #1 on: June 06, 2023, 02:21:38 pm »
have filled this.
 

Offline Sniper1

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Re: PCB design job
« Reply #2 on: June 14, 2023, 04:54:41 pm »
Interesting circuit.
If you dont have any offers i can try to slowly do it (not sure how much free time i will have but ill do it reasonably fast after i understand how it works , in order that i know how to properly chose the FETs
 

Offline rhbTopic starter

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Re: PCB design job
« Reply #3 on: June 16, 2023, 02:55:04 am »
I've completely abandoned this method in favor of an HP 8593A for ease of programming.

It is very interesting and I spent a good deal of time playing with Butler oscillator.
 


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