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ironinthepath · 17th November 2009

I and a partner recently designed a mic-preamp for a college design project. We started with breadboards for just about everything (except it was tough to stabilize our discrete opamp b/c of parasitic capacitance and we moved that to a small PCB early on), we even had our power supply circuit (used a transformer/a standard regulated DC supply, +/- 24V and 48V for phantom, this may have been dangerous) on a different breadboard...we just connected them all together. For low-noise design it has its drawbacks because of grounding issues.

Later, everything went to PCB.

Anyway, we learned a ton and I totally recommend tooling around with solderless breadboards for relatively low-voltage circuits. Especially battery powered stuff.

We used (several of) something like this:
Jameco Electronics Electronic Design: JAMECO VALUEPRO: WBU-206-R

-Chris

17th November 2009	#7
ironinthepath Gear interested Joined: Mar 2006 Posts: 29	Breadboards I and a partner recently designed a mic-preamp for a college design project. We started with breadboards for just about everything (except it was tough to stabilize our discrete opamp b/c of parasitic capacitance and we moved that to a small PCB early on), we even had our power supply circuit (used a transformer/a standard regulated DC supply, +/- 24V and 48V for phantom, this may have been dangerous) on a different breadboard...we just connected them all together. For low-noise design it has its drawbacks because of grounding issues. Later, everything went to PCB. Anyway, we learned a ton and I totally recommend tooling around with solderless breadboards for relatively low-voltage circuits. Especially battery powered stuff. We used (several of) something like this: Jameco Electronics Electronic Design: JAMECO VALUEPRO: WBU-206-R -Chris