Hi,

I was waiting to see how long it would be before Steve offered a solution and as usual he is 'right on the money' ... and pretty damn quick too!!

As the goal of any Capacitor manufacturer would be to produce the lowest ESR components (a perfect capacitor) I am sceptical of the A.I. generated response ... as I am of anything generated by A.I.!!!

The LM317 appears a lot in Meridian Electronics and you only have to look at the number of large and small decoupling capacitors that generally follow them to question this.

Is it correct that both units are now performing in exactly this same manner or can you follow Steve's substitution suggestion, which is probably time consuming but undoubtedly your best bet?

I do hope you manage to locate the problem and I will be very interested to learn of the outcome.

Regards
Paul

Sceptical ... At First!