I need help.
I am finally putting together my first tube-based system. I have initial budget of approximately $1000 CAD for an amp. In my area there are two amps that I like (but haven't heard). One is a nicely updated but mostly stock Dynaco ST-35 with new boards/components, new tubes, new...
Here is the non-technical artistic version of the ST-70 amplifier restoration video for all to enjoy edited from the several full length videos that made up the original restoration. I make several of such videos a year for larger projects.
This is the beginning of what is the second phase of a greater project going back several years, that being the initial salvaging of this amplifier after being found stored in a Florida attic for over 40 years. For this effort a complete video series exists where the amplifier was brought to a...
I have a PAS-3X that my father bought sometime between 1966 and 1970. It was his preamp throughout my childhood and holds a lot of sentimental value for me. It works but is in obvious need of a proper restoration. Jacks are loose, I doubt the tubes were ever replaced, it sounds muddy and the two...
In this video I will demonstrate harmonic distortion testing of my Dynaco ST 70 amplifier using all Heathkit tube gear from the 50's and 60's. This demonstration will show the THD produced from this amplifier at 2KHZ using three different power inputs.
The equipment used includes:
Heathkit...
A Dynaco PAS2 repair turned into a rebuild. Seeing as I am going to make it as good as possible I looked up an article by Mr. Carole (CAE) about improving the RIaa equilization. Now I am going to ask a question. Is anyone willing to stick with me on this because what I am finding is what he...
This thread will document my repairs to the PAT5 Pre-amplifier as a spinoff of my other AMP thread http://audiokarma.org/forums/index.php?threads/st70-7199-6gh8a-amplitude-vs-frequency.694384/
This is my solid state preamp for the ST70. Which naturally, doesn't work correctly.
My other is the...