CCS for tubes/valves: PCBs

SY · 27th January 2006, 05:30 PM

Since there's been a lot of interest lately in constant-current sources/sinks for use in tube amps and preamps, a few of us have been working behind the scenes to design a set of boards suitable for a wide variety of uses. The format will be a break-apart set of six circuits, both NPN and PNP. The design is a cascode bipolar, similar to the circuits shown in Morgan Jones's "Valve Amplifiers" and discussed at length in several recent threads.

The hard work has been done by our own Pinkmouse. Mr. Jones was kind enough to make some suggestions. And I'm the poor shmoo who has actually laid out the money to get them made.

We'll be announcing the prices and availability shortly. The boards are scheduled to arrive here in mid-February.

disclaimer: I am strictly doing this non-profit. Any portion of the price coming to me will be donated in full to the forum.

leadbelly · 27th January 2006, 05:44 PM

That's great! You can count me in for some.

pinkmouse · 27th January 2006, 05:54 PM

Teaser pic

JamesHill · 27th January 2006, 06:50 PM

I am interested to!

Jim

yagas · 27th January 2006, 08:22 PM

right place, right time !!
I'm interested too

Mic

planet10 · 27th January 2006, 09:29 PM

maps

Original Burnedfingers · 27th January 2006, 09:50 PM

Put me down for some also.

leadbelly · 27th January 2006, 10:31 PM

Quote:

Originally posted by planet10
maps

Those aren't the classic M. Jones circuit. One resistor morphed into an LED.

SY · 27th January 2006, 10:56 PM

Mr. Jones didn't object.

No-one will call the police if you stuff a resistor into that space instead of an LED.

Original Burnedfingers · 28th January 2006, 12:36 AM

SY,

Ever think about doing your input board?

27th January 2006, 05:30 PM	#1
SY diyAudio Moderator Join Date: Oct 2002 Location: Chicagoland Blog Entries: 1	CCS for tubes/valves: PCBs Since there's been a lot of interest lately in constant-current sources/sinks for use in tube amps and preamps, a few of us have been working behind the scenes to design a set of boards suitable for a wide variety of uses. The format will be a break-apart set of six circuits, both NPN and PNP. The design is a cascode bipolar, similar to the circuits shown in Morgan Jones's "Valve Amplifiers" and discussed at length in several recent threads. The hard work has been done by our own Pinkmouse. Mr. Jones was kind enough to make some suggestions. And I'm the poor shmoo who has actually laid out the money to get them made. We'll be announcing the prices and availability shortly. The boards are scheduled to arrive here in mid-February. disclaimer: I am strictly doing this non-profit. Any portion of the price coming to me will be donated in full to the forum. __________________ If there's a sucker born every minute, where do the rest of them come from?

27th January 2006, 05:44 PM	#2
leadbelly diyAudio Member Join Date: Dec 2002 Location: Calgary, Alberta	That's great! You can count me in for some. __________________ Aerodynamics are for people who can't build engines. Enzo Ferrari

27th January 2006, 08:22 PM	#5
yagas diyAudio Member Join Date: Sep 2004 Location: Athens	right place, right time !! I'm interested too Mic __________________ Mic

27th January 2006, 10:56 PM	#9
SY diyAudio Moderator Join Date: Oct 2002 Location: Chicagoland Blog Entries: 1	Mr. Jones didn't object. No-one will call the police if you stuff a resistor into that space instead of an LED. __________________ If there's a sucker born every minute, where do the rest of them come from?

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27th January 2006, 06:50 PM	#4
JamesHill diyAudio Member Join Date: Nov 2003 Location: Bristol	I am interested to! Jim

27th January 2006, 09:50 PM	#7
Original Burnedfingers diyAudio Member Join Date: Nov 2002	Put me down for some also.

28th January 2006, 12:36 AM	#10
Original Burnedfingers diyAudio Member Join Date: Nov 2002	SY, Ever think about doing your input board?

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