Valve preamp.

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Valve preamp.

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Mark Hennessy

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Location: Worcestershire

#14

12-12-2019, 12:59 PM

(12-12-2019, 12:09 AM)Terry Wrote:
(11-12-2019, 08:41 PM)Mark Hennessy Wrote: I note that the input impedance of this amp is rather low, at just 1k.

And that 100pF input capacitor is hardly likely to produce a broadband response!

I appreciate that's probably humour, as it's clearly a µ, and is drawn as a polarised cap. And you can see it on the photo of the completed boards.

Andy, let me know if you feel we should start a new thread for Tracy's amplifier Thumbs_up

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Messages In This Thread

Valve preamp. - by Diabolical Artificer - 07-06-2019, 04:32 PM

RE: Valve preamp. - by Diabolical Artificer - 15-06-2019, 06:12 AM

RE: Valve preamp. - by Diabolical Artificer - 10-12-2019, 06:15 AM

RE: Valve preamp. - by Diabolical Artificer - 10-12-2019, 03:33 PM

RE: Valve preamp. - by BusyBee - 10-12-2019, 05:19 PM

RE: Valve preamp. - by Diabolical Artificer - 11-12-2019, 07:32 AM

RE: Valve preamp. - by Kalee20 - 11-12-2019, 12:36 PM

RE: Valve preamp. - by BusyBee - 11-12-2019, 07:02 PM

RE: Valve preamp. - by ppppenguin - 11-12-2019, 01:20 PM

RE: Valve preamp. - by Kalee20 - 11-12-2019, 05:42 PM

RE: Valve preamp. - by Mark Hennessy - 11-12-2019, 08:41 PM

RE: Valve preamp. - by Terry - 12-12-2019, 12:09 AM

RE: Valve preamp. - by Mark Hennessy - 12-12-2019, 12:59 PM

RE: Valve preamp. - by Terry - 12-12-2019, 02:37 PM

RE: Valve preamp. - by BusyBee - 13-12-2019, 04:42 PM

RE: Valve preamp. - by Mark Hennessy - 13-12-2019, 07:19 PM

RE: Valve preamp. - by Diabolical Artificer - 12-12-2019, 06:35 AM

RE: Valve preamp. - by Diabolical Artificer - 12-12-2019, 03:29 PM

RE: Valve preamp. - by BusyBee - 16-12-2019, 07:09 PM

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