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Old 19th October 2011, 09:55 PM   #6931
Salas is offline Salas  Greece
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Quote:
Originally Posted by RCruz View Post
Yes please.
Done.
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Old 19th October 2011, 10:29 PM   #6932
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ARG and now what do I do...

Panic panic panic

Could you post a link ?
Preaty please that is.
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Old 19th October 2011, 10:59 PM   #6933
Salas is offline Salas  Greece
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Sure. From this link below, the Reflektor idea begun. Then on there are the tryout posts amongst some general ones for the other types.
From post#4471 there, you can read what OT moved from here.

The simplistic Salas low voltage shunt regulator
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Old 19th October 2011, 11:01 PM   #6934
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Foundit tanks.

PCB tomorow maybe?

2N4003 with collector curents of 500 mA

Realy needed?
got stash of BC56* sometink pnp any good (sorry at work at present me fink PNP566 not shure)

Last edited by Bksabath; 19th October 2011 at 11:04 PM.
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Old 19th October 2011, 11:06 PM   #6935
Salas is offline Salas  Greece
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Better the 4403 as they are confirmed low noise switching spec BJTs.
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Old 19th October 2011, 11:33 PM   #6936
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Tanks Salas
Going to order a few tomorow.

I can get Multycomp current gain 100
Or On semy current gain 200 (2N4403G)

Do the transistors need matching?

And how?

Ops Sorry just realised this should be on the Power suply forum.
Maybe for continuity sake may be worth moving the SCH there?

Last edited by Bksabath; 19th October 2011 at 11:42 PM.
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Old 19th October 2011, 11:35 PM   #6937
Salas is offline Salas  Greece
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Read that link above describing how the circuit works and talks matching sensitive ones too. Get OnSemi.
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Old 19th October 2011, 11:55 PM   #6938
Salas is offline Salas  Greece
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Quote:
Originally Posted by Bksabath View Post
Tanks Salas
Ops Sorry just realised this should be on the Power suply forum.
Maybe for continuity sake may be worth moving the SCH there?
Your 24V recommended after voicing tweaks schematic is already here on post #6926
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Old 20th October 2011, 01:08 AM   #6939
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OK found most probably the beghining of it The simplistic Salas low voltage shunt regulator


Tanks Salas
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Old 20th October 2011, 03:39 AM   #6940
kerux is offline kerux  United States
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Unhappy troubleshooting one channel

I got my salas riaa built but it is not working. I am using the Salas 1.1 bib as the regulator and I am measuring 25.1 volts. I am trying to build the Salas Simplistic NJFET Riaa Version 1.0 PDF(MM or MC High version) not the most current PDF version 11.02.F0

The leds are powered on but I am getting no sound or hum on one channel. My other channel isn't working either and is in worse shape.

From reading some of the thread there is mention of measuring the drain to ground voltage so I think I measured these correctly.

Q6 - 24.9 volts
Q3 collector - 15.65 volts
Q1 drain - 7.16 volts
Q2 drain - .961 volts
Q5 drain - .443 volts

Compared to recent PDF
Q6 is Q5
Q3 is Q4
Q5 is Q3

Any help is appreciated.

Kerux
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