|
Hi all!
I finished my 5C5 Junkmaster a couple of hours ago and fired it up.
Much to my surprise it worked from the very beginning. Nothing burned, no smoke, no funny smells ('cept for me having spent all of yesterday night and today bent over the chassis soldering and wiring the amp) and turning the standby switch to "on", out of the speakers came S-O-U-N-D!!! Ahh, what a feeling!
Since I live in an apartment I have not been able to crank it yet to hear how it really sounds. Neither have I changed the 12AX7's in v1 and v2 for 12AY7's yet. But so far I am happy just to hear that the crap works!
I made some measurements. Here's what I got:
338-0-338 VAC (OT spec'd for 320-0-320 VAC...)
429 VDC B+ (SS recto)
360 VDC on the 6L6GC screen grids
79 VDC on v1's plates (measured on pins 2 & 5 after the 250k plate resistors)
87 VDC on v2's plates (measured as above)
183 VDC (v3a) and 189 VDC (v3a) on v3's plates respectively (measured as above)
Cheers!
A.
__________________
We shall not cease from modifying our amps. And the end of all our modifying will be to arrive where we started and know the circuit for the first time.
|