I have finished the rebuild of my Dynaco Mark VI's. It took me a couple of months part time and waiting for parts, but they are finished.
I measured every resistor that I removed and nearly all were out of value. The resistors that were supposed to be within 1% were not even within 20%. I found some values of the carbon comps nearly double.
So I replaced them all, along with every film and electrolytic capacitor and the main b+ capacitors.
Had a couple of problems when I fired them up (sticky power switch and one shorted power tube) but they are now working fine.
Before
Nearly done here.
All the parts I removed.
I measured every resistor that I removed and nearly all were out of value. The resistors that were supposed to be within 1% were not even within 20%. I found some values of the carbon comps nearly double.
So I replaced them all, along with every film and electrolytic capacitor and the main b+ capacitors.
Had a couple of problems when I fired them up (sticky power switch and one shorted power tube) but they are now working fine.
Before
Nearly done here.
All the parts I removed.
Last edited by ricohman on Mon Feb 18, 2013 2:49 pm; edited 2 times in total