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Blackburn ST70 on Craigslist
Posted:
Tue Mar 17, 2009 9:43 pmby Quad
In case anyone is interested, I saw a ST70 for sale on
CL with a Blackburn board.
As far as I can make out, it looks like he has a newer PT with
the taller laminations stack, and Russian caps on the board.
http://knoxville.craigslist.org/ele/1053145087.html
Prasad
Posted:
Wed Mar 18, 2009 5:33 amby burnedfingers
Well, its not the Blackburn PC board but a hand wired one probably by the seller. I have some personal experience with the board because I have a working unit. The circuit isn't anything to write home about as its so-so at best. Is it worth the asking price? Well, a new transformer is what..$139 plus the value of the output transformers at say $150 and the chassis if its in good shape at $60? for a total of around $350 So it would put someone into a Dynaco for a somewhat reasonable price.
Posted:
Wed Mar 18, 2009 1:23 pmby TerrySmith
I built it! Matt was out of the boards so I hard wired the driver circuit. It does have a Triode PT and outputs of unknown origin, but sound as good as stock. every other part is new except the chassis.
Posted:
Wed Mar 18, 2009 7:59 pmby burnedfingers
Quote:
I built it! Matt was out of the boards so I hard wired the driver circuit. It does have a Triode PT and outputs of unknown origin, but sound as good as stock. every other part is new except the chassis.
And you did a nice job on it. Just pointing out its worth the money. The components alone are probably worth the asking price and thats not even figuring your time. There is nothing wrong with wiring point-to-point as it was good enough for those that developed a major amount of the circuits out there.