Maybe they were bought out by MFJ   ;-)

     Ron Genovesi
           N3ETA
Sent from my iPhone

> On Feb 25, 2019, at 10:07 PM, Jim Brown <j...@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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