Reply to "Thoughts on buiding a Lionel whistle activation board/circuit?"

iakobosOGR Forum Member

OK, I've gone back through Mouser and Digi-Key and priced out all the parts.
'If' I have the correct parts this time, here is what we have.

Mouser

Darlington TO-92 NPN Transistor $.16

1mF 50V Capacitor $.06

470mF 35V Capacitor $.25

1N4001 Rectifier Diode $.08

75K Resistor $.07

10K Resistor $.05

Sub-total $.67
Est. Shipping $4.95 USPS Commercial Address (Cheapest possible) or $6.95 USPS Residential
Total $5.62
-------------------------------------------------------

Digi-Key

Darlington TO-92 NPN Transistor $.55

1mF 50V Capacitor $.18

470MF 35V Capacitor $.44

1N4001 Recifier Diode $.25

75K Resistor $.08

10K Resistor $.08

Sub-total $1.58
Est. Shipping $2.56 USPS Commercial or Residential Address
Total $4.14

Assuming shipping stays the same, if I only build 1-2 boards Digi-Key is cheaper, and 3 or more Mouser is cheaper.

1/1/129:09 PM

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