What is pro and cons for Z-out vs ordinary Out on CCS?
I know that impedance will be lower on Z-out but is there any negative side of using this output vs ordinary out?
I know that impedance will be lower on Z-out but is there any negative side of using this output vs ordinary out?
The attenuator after my #26 preamp is an TVC (S&B TX102, 400H primary), so moderated output impedance also necessary.
few 10M45s are on my hand.
How are the gain and Z-out if 10M45 is in plate loading for 26 tube ?
Does anyone compare this CCS to output tranny on sound quality ?
Tks,
How are the gain and Z-out if 10M45 is in plate loading for 26 tube ?
Does anyone compare this CCS to output tranny on sound quality ?
Tks,
Can I use Jung CCS? for voltage regulation I'm using VR150 tube.
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Combined with the rest of SSHV2 yes, the question is if I can use before VR150 tube regulator without the SSHV2?
SSHV2 can't work doing the Jung CCS mod, my question is if I can use the Jung CCS alone togheter the OD3 / VR150 tube regulator?
You mean Jung CCS as you have posted can work in HV mode...??
Is the mod. better than without??
Is the mod. better than without??
Jung CCS in place of SSHV2 CCS don't work in combination with the rest of SSHV2.
I don't know, I ask before to try with the tube regulator without SSHV2.
I don't know, I ask before to try with the tube regulator without SSHV2.
Felipe, the measurements are OK.
But if you want to make the 2 sides better matched, you could increased the bias resistor on the side that draws more current.
Try adding 0.68 ohm wirewound 5W in series with the 10 ohm bias resistor, to reduce the anode current of the 6.5mA side to make it nearer to the 5.7mA side.
But if you want to make the 2 sides better matched, you could increased the bias resistor on the side that draws more current.
Try adding 0.68 ohm wirewound 5W in series with the 10 ohm bias resistor, to reduce the anode current of the 6.5mA side to make it nearer to the 5.7mA side.
Thanks Rod, another question: isn't too high 970mA & 990mA? have to be both channels the same current?
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Normal current is 1050mA, but this is only a guide. The voltage of 1.5V across the filament is more important.
Some constructors use low current (starved filament) to reduce microphonics). But do not do this unless you need to, as the lifetime of the DHT may be reduced.
If you reduce the current (adjust the regulator for lower voltage across filament), you must increase the 10 ohm bias resistor to get the anode current back to about 6mA. Just use Ohm's Law.
I set both filament regs. to have 1.5V across filaments, I look for in my stash if I have 0R68 5W.