Ernstmach wrote:Thanks Everyone!
Frank111, I am looking to assemble the M125's. Currently I'm having an Aretha preamp built. Should arrive soon. Is there a thread detailing your build of the M125's?
deepee99, Also interested in reading about your M125 build. Any thread?
Hi, Bob, no thread for my build. (It would be embarrassing.) What caused me the most grief was the crappy cheap Weller soldering iron I was using. The instructions are quite straight-foward and Bob includes a pictorial.
My cheap Weller was too hot for small connexions such as to the circuit board, and woefully inadequate for multi-wire ground lug hook-ups. Drove me nuts, and I melted a tube socket and some wire insulation in the process.
CircuitSpecialists.com make a very nice soldering iron kit, good temperature control, and some handy bells and whistles (pump, brass tip-cleaning dish, etc., etc.) for about $70. Even comes in a Plano tool box. I am very pleased with mine and wish I'd had one before I started assembly. Others here will have their own favourites; I got mine on the recommendation of somebody here on the board.
Avoid any of the new politically-correct solders with too-low lead content. Skizo has a favourite real 60/40 solder made by Cardas. I just used basic Ace Hardware 60/40 but he makes a good case for the Cardas.
Something else you could do in advance of receiving and building the kits is buy a can of De-Oxit D5 spray (Amazon, etc.) and when you're done building them, squirt a bit on each of the tube socket-holes before installing the tubes.
As for tubes, Jim McShane at www.mcshanedesign.net is my favourite source for new Russian-made output tubes (KT-120s, KT-88s and the like). I'd consult with Bob L. on the driver tubes.
Last edited by deepee99 on Tue Sep 01, 2015 2:19 pm; edited 1 time in total (Reason for editing : A little added misinformation . . .)