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In Reply to: RE: Dynaco SCA-35 replacement boards problem... posted by gkargreen on May 06, 2017 at 18:55:36
Spending a few extra bucks and buying the board from the "REAL" designer pays for itself in two ways.
Most importantly you have support from the seller/designer. Besides the vast pool of knowledge of those that have used, tweaked and modified those boards - with success!!!
Don't support ebay. Support those that have taken the time, effort and true love of building these boards - the right way.
I've said my piece and now I'll move out of the way.
Charles, tubes4hifi sold many a VTA70 board on Ebay. Also, I've seen the Bob Latino sell his kits there as well.
Yes, but they are the original designers selling THEIR products. Not a knockoff.
That was my poorly phrased point. Compensate the people that DID the work.
But if Dave Gillespie was selling his boards, or Jim McShane were selling tubes on ebay I wouldn't hesitate to buy from either one of them.
You do have to know what you're doing though, and buying these boards in question from a Chinese seller is a risk. As gkargeen found out, there's little to no support offered, and as I speculated in another reply, there's the likely potential for counterfeit components to be installed.
Still, for some who don't have the soldering skills, or are in a rush, the Chinese products prove to be too tempting to resist.
So, where ebay is concerned, you're certainly correct in cautioning, "Caveat Emptor"
I am not like most people whose posts I have read here. While not quite up there with Dave, Eli, Mikey, etc., I do know my way around a circuit and which end of a soldering iron to hold. My main issue with these boards was that they moved the balance control input position, once I checked the circuitry I figured out what had been done and how to properly use these boards, which I feel are fine products, maybe not as good as Dave's, but not some piece of shit either, I could see that from the pics on ebay. To dismiss ebay as some junk shop of parts is extremely ignorant, I have bought and sold many pieces with no issues at all, and that includes Chinese and Russian parts. Caveat Emptor is certainly valid in ANY dealings in life, particularly with businesses as a customer (oh how they screw us!) to being an employee of most businesses. That doesn't mean you don't use one, just use caution.
I'm sorry if you felt put upon by my post.
Some of my impressions of the quality of the (and the risk of counterfeit) components, on these Chinese ebay boards came from a post on the Tube DIY Asylum which I read about five years ago (link below) where the poster said he had to replace all the capacitors which his ST-35 boards came stuffed with to get it to sound good.
As for dismissing ebay as "some junk shop", I wasn't the one who did that, but you're implying it by saying it in your reply to me. To repeat what I said, ebay can be fine to purchase from, but one has to use caution, know what they're buying, and who they're buying it from.
That said, I'm glad you got your issue sorted out.
shovel, I wasn't totally throwing you under the bus here, that post was mostly directed towards airtime, who has this habit on AA of making comments with little technological reasons to back it, i.e., uninformed responses. You, OTOH, had something solid to offer (although you did come off a bit strong on the anti-ebay thing) an that is appreciated. There was a post that was deleted by airtime right after posting that was incredibly, ah, less than attractive, he realized that and quickly removed it to his credit. In my two previous rebuilds I rebuilt the PC10 boards and believe them to be better than these new boards due to component quality, that being said, these boards are not junk and I would use them again if pressed. Dave's boards I believe are a better design and would go that route first, I can also control parts quality. The costs would be the same, but stuffing the boards would add several more hours to the project and thus cut into my profit on these repairs/restorations, which is something I need to keep in mind. Thanks!
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