Comments on: Simple IR audio link

By: Anish

Anish — Fri, 03 Feb 2012 09:42:35 +0000

Hi kiran,
Leave the base terminal(do not connect it in the circuit)

mcleja — Thu, 02 Feb 2012 11:27:20 +0000

I just made this and it works!

kiran — Sun, 29 Jan 2012 04:21:31 +0000

dear sir,
where should I connect the base of the Q2 photo-transistor?

thanks

mcleja — Sat, 24 Dec 2011 10:19:19 +0000

Thank you.

seetharaman — Fri, 23 Dec 2011 22:52:57 +0000

Hi Meleja you can use these transistor for all the transistors (Q1,2, 3&4)

mcleja — Thu, 22 Dec 2011 08:03:00 +0000

Hi, would these transistors work?

Im thinking that i will need them because i can only find 100ma 1.5v ir leds.

seetharaman — Wed, 21 Dec 2011 15:44:41 +0000

Hi Meleja yes they are 1.5 volt 20mA IR LEDs(IR emitters)

Aniket — Wed, 21 Dec 2011 15:34:09 +0000

thanx a lot sir !!!!!
u replyng so fast thats so great of u !!!!

mcleja — Wed, 21 Dec 2011 11:28:50 +0000

Are D1 and D2 1.5 volt IR emitters?

Seetharaman — Tue, 20 Dec 2011 01:03:50 +0000

Hi Aniket any one of the following can be used BPX43, BPW85, L14F1, BP103, BPW17, BPW20, BPW77, BPW78, BPV11,