14-04-2015, 07:47 PM
Many thanks for all that info and advice Mark, and the link to your op-amp primer!
Just looked at the IC in the kit and it's an LM358. According to the info at this link, it will work with a voltage range of 3 - 32V:
http://www.ti.com/product/lm358-n
With that in mind, I'll build and test it at between 7 - 9V, as it would experience if powered from a PP3. I can poke a sine wave into it and observe it on the scope to see the effects of a lower voltage.
Obviously the simpler the better - I'd prefer to avoid having to use two PP3s, or the added faff of a voltage regulator.
I'll report back when it's built!
Thanks once more.
Just looked at the IC in the kit and it's an LM358. According to the info at this link, it will work with a voltage range of 3 - 32V:
http://www.ti.com/product/lm358-n
With that in mind, I'll build and test it at between 7 - 9V, as it would experience if powered from a PP3. I can poke a sine wave into it and observe it on the scope to see the effects of a lower voltage.
Obviously the simpler the better - I'd prefer to avoid having to use two PP3s, or the added faff of a voltage regulator.
I'll report back when it's built!
Thanks once more.
Regards, David.
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
