"Arny Krueger" wrote in message
...
I did a little research and came up with the following:

Radio Shack part number 330-1109 3-Way Headphone Volume Booster. This
device runs off of 2 AA cells and provides 3 amplifier headphone jacks. I
ran some measurements on it and find that it has approximately 6 dB gain,
0.003% THD @ 1 KHz full output, approximately 90 dB SNR and frequency
response 20-20 KHz +0, - 0.3 dB. It sells for the princely sum of $22.95.


IME the best thing concerning the purchase of any Radio Shack branded
product is its no questions asked money back guarantee. (However with the
cost of gas these days it may not turn out to be a good thing at all.)