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Forgot to add... [message #31902 is a reply to message #31896]

Sun, 18 June 2006 17:42

Damir
Messages: 1005
Registered: May 2009

Illuminati (2nd Degree)

...that I tried a resistive load, too. With B1+ of 400-410V and Ra=22k (25W Dale wirewound), C3g tube "draws" about 10,1mA (with Rk=280 Ohms, bypassed), and A=44,4 times.
That means rp=3,27 kOhms for the tube with µ=51 in this OP, and Rout = Ra//rp = 2,85kOhms.
With 2x red LED bias, Ia was about 9,8mA and A=43,4 times.
Similar sound then CCS version, a little "warmer" - can be usable, for sure, but I prefered CCS...

Currently working on the final (in chasis) version...

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[Message index]

		SE 300B Project, Part 12 - C3g driver By: Damir on Sun, 21 May 2006 08:10
		Re: SE 300B Project, Part 12 - C3g driver By: Wayne Parham on Mon, 22 May 2006 15:47
		Why would C2 be so "critical"? By: Old Brown Eyes on Tue, 23 May 2006 07:56
		Re: Why would C2 be so "critical"? By: Damir on Tue, 23 May 2006 11:18
		Do you think it is possible... By: Old Brown Eyes on Tue, 23 May 2006 12:32
		Re: Do you think it is possible... By: Damir on Tue, 23 May 2006 14:28
		C3g driver update By: Damir on Sat, 03 June 2006 11:41
		Forgot to add... By: Damir on Sun, 18 June 2006 17:42

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