DVD-Software.info

[Ruud Broens]

"Paul D. Spiegel" <pds@ktb.net> wrote in message
news:cqt9ln$m3t$1@dns.ktb.net...
: Paul D. Spiegel <pds@ktb.net> wrote:
: >
: > Not only did it fit, but the 6021 was a nice, clean sounding triode.
: > Here's how I configured it:
: >
: > Grid resistor = 100K
: > Cathode resistor = 125
: > Cathode bypass = 100mf
: > Plate resistor = 17.5K
: > Plate supply = 250v
: >
: > This gives a current of about 8ma, grid voltage of 2v, plate voltage
: > of 110v, and a plate dissapation of about 0.86w. The amplification
is
: > about 25x and the output impedence is about 4.7K.
:
: Here's an update to my own post. The grid voltage is really zero, of
: course. The cathode resistor sets the cathode voltage at about 1v, so
: the effective grid voltage is -1 in reference to the cathode.
:
: I didn't want to mislead anybody who might use this model for their
own
: project.

Thanks Paul, we gathered that. May I suggest you try a 150 Ohm
Cath.res.
for a little more headroom, a little less dissipation ?
cheers,
Rudy