I was just looking at them. They don't match. C13 and C14 on the board are C16 and C17 in the schematic.
Tnx. Got a little confused there for a moment.
I read in the honeybadger thread that mjl21193/94 are too slow for the EF3 amp. I was planning to use those transistors from a hk690 (ef3?) in this build. Are they a no go or will they work for music?
I read in the honeybadger thread that mjl21193/94 are too slow for the EF3 amp. I was planning to use those transistors from a hk690 (ef3?) in this build. Are they a no go or will they work for music?
Borys valve IPS+Slewmaster
Testing this combination.
Testing this combination.
Attachments
I'm trying to get Kypton V up and running. Something seems to be very wrong. None of the leds light up. If I disconnect NFB, one of them light up.
Any suggestions where to start troubleshooting?
Any suggestions where to start troubleshooting?
-0.665v with NFB disconnected. -0.445 with NFB connected.
Drop across it is 1.314 in both conditions.
Drop across it is 1.314 in both conditions.
This one's a bit of a nightmare to figure out by just staring at the schematic. You should have twice as much current flowing through R9. I think Q3/4 aren't drawing enough current.
I'll sit down and double check all values with the schematics. I suspect that there can be a wrong value resistor somewhere.
This input is very similar to Valery's TubSoMo. I had one of those operating the same. I fought with it for a couple days, then threw it behind the tire of a loader as it backed up.😡
I'm trying to get Kypton V up and running. Something seems to be very wrong. None of the leds light up. If I disconnect NFB, one of them light up.
Any suggestions where to start troubleshooting?
Me and Thimios shot back and forth many times on the V. We finally
came up with the V2 (below).
The V is VERY picky about compensation (R6/C3 - R12/C13).
He said (and showed) it worked , said it was one of the better sounding IPS's.
OS
Attachments
Hello Boss🙂Me and Thimios shot back and forth many times on the V. We finally
came up with the V2 (below).
The V is VERY picky about compensation (R6/C3 - R12/C13).
He said (and showed) it worked , said it was one of the better sounding IPS's.
OS
Wish that I found that earlier. I guess I'll start swapping resistors. 😉
I think the CCS is going to run higher current with the LED in place of Q4.
Hello Boss🙂
Hello , Thimios.
I am almost sure my posted "V2" is where you had it "singing" 😀 .
Right ??
I did update the R13 (servo FB) to coincide with the other
servo'ed IPS's (symasui/spooky) 5.6K Z allowed for millisecond settling.
Both my Symasui and spook settled to .1mv within <100mS with this
value.
OS
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