I bought this as a kit from a little hi-fi shop in Berkeley, California for $79.95 and built it myself in the early 1970s.
I bought this as a kit from a little hi-fi shop in Berkeley, California for $79.95 and built it myself in the early 1970s.

7 users commented on " Dynaco Mark III (updated) "
Follow-up comment rss or Leave a TrackbackIs it an amplifier? A radio? I don’t know enough about electronics to be able to tell.
$79.95?! I didn’t have $79.95 to spend on *anything* in the early 1970s!
Of course, I was only elementary school age in the early 1970s.
Spiffy!
I think these old tube amps are so elegant.
Try not to let it fall into the wrong hands. Hands of the hairy tattooed arm with Dudley Doowright wrist-watch and flexy brcelet.
Mark, I just added three pictures today. This is an audio amplifier and I still use it. For stereo you would need two amplifiers. These came out in the late 1950’s and were considered to be quite high end and somewhat less expensive. I modified the circuit slightly by adding an extra capacitor in the power supply. You can see the extra capacitor (orange cylinder) in one of the pictures.
i have one still in the the box dont know were the one transformers are but i would like to sell it i seen what some are going for or just the screen was going for it
I realize the extra capacitor in the power supply would probably be better if it was installed after the choke coil, rather than right at the cathode of the 5AR4 rectifier tube.
You are so cool! I don’t suppose I’ve truly read
something like that before. So nice to discover someone with a few original thoughts on this subject matter.
Seriously.. thank you for starting this up. This
website is something that is needed on the web, someone with some originality!