Re: ERA-02 as a multiplier
Andy, I just happened to have two separate 723’s on a piece of veroboard that came with a W1GHz simple personal beacon for 10GHz. (bought at a uW MRT many years ago) Each one was used to control the bias on the Multiplier MODAMPS.
Just seemed handy to use ! I will of course use something more appropriate like an LDO1117 adj. Or similar when I lay out the PCB.
Colin de ‘LBS.
Sent from Mail for Windows 10
From: Andy G4JNT
Sent: 24 January 2021 22:30
To: UK Microwaves groups.io
Subject: Re: [UKMicrowaves] ERA-02 as a multiplier
Still using the 723 regulator?
That thing is so complicated to connect up compared with an LM317. And, I believe, a lot noisier.
Isn't it so old that the reference inside it is an actual Zener? If so, no wonder it's noisy.
I formally learnt about them in 1976 - remember it well.
On Sun, 24 Jan 2021 at 22:26, Colin Ranson <g8lbs@...> wrote: