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March 29, 2020


John Dunn

This essay seems to have conveyed the impression of my being involved with repairs and/or distribution of ventilators. I am not!

I have merely taken note of news items and from them. I have drawn a disturbing conclusion which I hope to make as widely known as possible.

Fred Bassali

Typical/commonly used electrolytic capacitors can be replaced with solid tantalum electrolytic capacitors which are much more durable.

It might be an easy permanent fix. Someone needs to look into this!

John Dunn

Tantalum electrolytic capacitors, whether wet slug or dry slug, cannot deliver as many µF as aluminum electrolytic capacitors can. For example, I can't imagine putting 20,000 µF worth of tantalum parts where aluminum parts have been used.

Secondly, those supposed thousands of ventilators will already have aluminum electrolytic capacitors in them. My fear is that many of their capacitors may be deteriorated beyond reclamation and that those ventilators will need servicing.

Douglas R Carrier E.E.

It seems that suitable replacement of compromised electrical parts is a simple solution. Rather a negative response, a proactive plan begs initiating. The problem is real, the solution appears simple. Get on it.

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