[R-390] Hot Rod R-390A

[Perry Sandeen]

Wrote: I don't recall seeing any discussion of how a Chuck Felton modded R-390A stacks up against a stock, properly tuned up, R-390A. Has anyone ever used one, or is it just too painful to think about?

Don and List,

Probably it would be painful for the owner of the “stock” R-390A.

I met Chuck about 6 years ago and then saw him at the same hamfest for several years in a row.  A very pleasant fellow.  He was kind enough to share with me the mods that he later published in the ER article.  At the last hamfest I saw him, he gave me permission to use his article in the Y2K-R3 version.

Chuck was and engineer at WWV in the Peoples Republic Of Boulder. He has authored at least one article when he was there but he never talked about being at WWV.

Chuck does his mods for a living.  If they were bogus I believe we’d have hear about it as he charges about $900 for his upgrades.

I would love to see a side-by-side comparison of a “stock”A receiver with the Felton upgrades and one with the "Competition-Grade" R390a that Ray Osterwald published in ER magazine done with real lab grade equipment.  My money would be on Ray’s and Chuck’s receivers.

Now I know at least Bernie in OZ disagrees.  I’d like to hear from someone BTDTGTTS.

Regards,

Perrier, still 404