what became clearer with time, for IRF mosfet on SIT board, size bigger heatsink is welcome
not exactly necessary, but for peace of mind
not exactly necessary, but for peace of mind
Choky,
As luck would have it, it looks like the 5k (no end-click in either direction) pot at P2 on the gain pcb is bad. Across R10 I have an unchanging 2.5KR, whereas on the on the other channel I can raise and lower across R10 easily. No way to set max neg. on Gate.
The drain of the SIT is the the SIT case?
As luck would have it, it looks like the 5k (no end-click in either direction) pot at P2 on the gain pcb is bad. Across R10 I have an unchanging 2.5KR, whereas on the on the other channel I can raise and lower across R10 easily. No way to set max neg. on Gate.
The drain of the SIT is the the SIT case?
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triple check what's with trimpot/R10
all trimpots I'm packing are checked in Magic Chinese MeasureItAll Gizmo, but of course, I'm not checking their rotation
and this one would be first Dodoroto, of hundreds I sent
yeah, case D, thin pin G, fat pin S
all trimpots I'm packing are checked in Magic Chinese MeasureItAll Gizmo, but of course, I'm not checking their rotation
and this one would be first Dodoroto, of hundreds I sent
yeah, case D, thin pin G, fat pin S
just for the record - some multiturn trimpots are giving audible click on both ends, some at just one, some not at all
in all these years I never found consistency in that ......... every time I had some quantity of same (whatever brand), just when I was thinking I gotchya, these all are behaving the same, 31st or 51st prove me silly
so, trust in DMM, ignore ears, in case like this
Choky, turned P2 until hand said no more, both directions. I’ll try again….
All ready to go otherwise and will be greedy boy with SITs playing Miles Davis soon.
All ready to go otherwise and will be greedy boy with SITs playing Miles Davis soon.
I believe that you did, of course
just saying - ignore clicking per se
if DMM sez it don't work, that's it
pull it out, check it just for fun, replace it
Choky,
I'm sure that when it left Ancient Basch Empire it was working. I use Wiley Coyote heat when I solder. I pulled it and it was shunted, so, I probably did that with massive heat. I do have a 10k on hand.....
Going forward you can call me shunty, or flame 😛
I'm sure that when it left Ancient Basch Empire it was working. I use Wiley Coyote heat when I solder. I pulled it and it was shunted, so, I probably did that with massive heat. I do have a 10k on hand.....
Going forward you can call me shunty, or flame 😛
it seems аll soldering Irons at your side of Big Splash are having just two settings:
now you know why my forehead is sweated on this pic:
....... bummer, I can't find that pic, Mighty ZM Omnisoldering at Pa's bench; he did promise!!!! separate Workshop for next ZM visit
- measly (everything squishy melted even if not soldered)
- Papatemp (damn hot, you really need to know what you're doing)
now you know why my forehead is sweated on this pic:
....... bummer, I can't find that pic, Mighty ZM Omnisoldering at Pa's bench; he did promise!!!! separate Workshop for next ZM visit
Playing some Kinda Blue right now. No noise and hot as enchiladas as expected, so it’s a singing bonfire.
Thank you Papa, Choky, Ben Mah and Randy Thatcher.
Thank you Papa, Choky, Ben Mah and Randy Thatcher.
Choky,
I'll see if I can post a video on YT of it making sweet music. First channel is cooking on bench, and I mean cooking. Voltage across drain and source has dropped to 450mv.....so I need to see-saw Iq again, but of course, that is still fine.
I'll see if I can post a video on YT of it making sweet music. First channel is cooking on bench, and I mean cooking. Voltage across drain and source has dropped to 450mv.....so I need to see-saw Iq again, but of course, that is still fine.
