UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

TonyDuell · 1st Apr 2019, 4:22 pm

I think it was at least one edition of 'The Art of Electronics' that said that using monostables was the mark of a bad designer as the timing could drift and in complicated systems really mess things up.

I wouldn't go as far as that. I do however try to avoid them wherever possible. I have been known to say 'you should only use monostables when you know enough to use them correctly'.

In this case a monostable _would_ be OK because the exact timing is not critical. It doesn't matter if the output is on 1/16th of the time or 1/10th or 1/20th. It will still be a useable stroboscope. On the other hand the purely digital solution, to take outputs from the counter chain and AND them, is probably simpler. It's certainly how I would have done it if I was designing such a device.

1st Apr 2019, 4:22 pm	#65
TonyDuell Dekatron Join Date: Jun 2015 Location: Biggin Hill, London, UK. Posts: 5,224	Re: Turntable Stroboscope I think it was at least one edition of 'The Art of Electronics' that said that using monostables was the mark of a bad designer as the timing could drift and in complicated systems really mess things up. I wouldn't go as far as that. I do however try to avoid them wherever possible. I have been known to say 'you should only use monostables when you know enough to use them correctly'. In this case a monostable _would_ be OK because the exact timing is not critical. It doesn't matter if the output is on 1/16th of the time or 1/10th or 1/20th. It will still be a useable stroboscope. On the other hand the purely digital solution, to take outputs from the counter chain and AND them, is probably simpler. It's certainly how I would have done it if I was designing such a device.