[Elecraft] OT: Astron linear PS regulation issues

[Ron Genovesi]

Maybe they were bought out by MFJ   ;-)

     Ron Genovesi
           N3ETA
Sent from my iPhone

> On Feb 25, 2019, at 10:07 PM, Jim Brown <jim at audiosystemsgroup.com> wrote:
> 
> YES!  This is a chronic problem with Astron supplies -- I've never seen one that didn't have this problem!  I first discovered and documented this issue almost 10 years ago.  In one supply, the two clam-shell sections of the chassis were also insulated from each other by paint!  This failure could easily cause instability!
> 
> http://k9yc.com/PowerSupplyBondingAndAudioDistortion.pdf
> 
> 73, Jim K9YC
> 
>> On 2/25/2019 6:24 PM, Bob McGraw K4TAX wrote:
>> I have personally found several instances in power supplies I either own or have repaired where the green power wire lug is firmly attached by the bolt and nut.   It however was nicely insulated by the paint!.     Visual inspection is the best way to determine if an issue exists.  Do take time to remove the bolt and nut securing the wire lug to the chassis.   Clean the area to bright shining metal where the lug would come in contact with the chassis.  Then reattach the green wire and lug with the original nut and bolt.
> 
> 
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