Sujet : Re: kids these days
De : jl (at) *nospam* glen--canyon.com (john larkin)
Groupes : sci.electronics.designDate : 01. Oct 2024, 01:38:44
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <hugmfj91o9i4p37suanbr9p49o12p131vs@4ax.com>
References : 1 2 3 4 5 6 7 8 9 10 11
User-Agent : ForteAgent/8.00.32.1272
On Mon, 30 Sep 2024 18:29:31 -0400, "Edward Rawde"
<
invalid@invalid.invalid> wrote:
"KevinJ93" <kevin_es@whitedigs.com> wrote in message news:vdev5a$2c45n$1@dont-email.me...
On 9/30/24 10:21 AM, Edward Rawde wrote:
"john larkin" <JL@gct.com> wrote in message news:7bglfjtll1os4g6pfqhf1i7jl0acmrvlqv@4ax.com...
On Mon, 30 Sep 2024 11:13:56 +0100, Cursitor Doom <cd@notformail.com>
wrote:
>
On Mon, 30 Sep 2024 05:15:02 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
>
On a sunny day (Sun, 29 Sep 2024 10:36:26 -0700) it happened john larkin
<JL@gct.com> wrote in <kb3jfjpejs47hqjd00fis20eog8de19ae8@4ax.com>:
>
I wouldn't hire someone who complicates a simple question into
paralysis.
>
>
I draw a 10 volt battery connected to two resistors, 9K in series with 1K.
>
The problem there is 'draw', no reality.
The battery will have an internal resistance, maybe discharged too.
>
What's the voltage across the 1K?
...
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Looks like an audio pre-amp with RIAA equalization for a moving coil pickup.
>
>
https://worldradiohistory.com/UK/Wireless-World/70s/Wireless-World-1974-12-S-OCR.pdf
Page 503 (pdf page 37)
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One thing I just noticed is that 2N4302 is n channel but shown as p channel.
>
Anyone know of a part I can still buy which is sufficiently equivalent?
>
You could bootstrap a collector resistor and get about the same
effect.
The Supertex depletion fets make nice constant-current loads too. They
are very repeatible, unlike jfets.
What's the expected current in the jfet?