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DC Beeper kit - 05/21/2019 - now re-stocked

press the Add to Cart button to buy a $12 DC Beeper
press the Add to cart button at the left to put a $2 C&K 8121 momentary switch in your Paypal shopping cart
press the Add to cart button at the left to put a $2.50 CPE-6080 large piezo in your Paypal shopping cart
Please note that the postage/handling fee is added to the cart only after Paypal knows the shipment destination.
Need other parts ? Check the Switch and Parts store for some good ones at good prices !

The DC Beeper is a Morse code voltmeter / battery saver / DC switch kit. It offers:
[DC Beeper kit picture - 
click for larger version]

  • reads the supply voltage in Morse code, 20 mV resolution
  • code speed can be varied from 5 to 35 wpm in ARRL steps
  • use with supply / battery from 4 to 15 volts
  • battery saver: automatically shuts off power when voltage falls below a trip voltage
  • also, a timer can shut off power to a load at 10, 20, 30, 60 or 120 minutes
  • the load can also be switched manually
  • low power usage, normally micro-amps
  • all board mounted parts included, just add a piezo speaker, switch and your favorite battery connectors to complete the kit
  • new: TO-220 transistor and solder masked / silk screened board
  • price is $12 plus postage/handling

  • No printed docs included with kit, please download the DC Beeper manual, the schematic and the hookup diagram in Adobe Acrobat format.

    contact with your questions / comments

    Paypal avoiders: Print out a Kit order form to figure your order manually
    or try our: javascript order form to let your browser do the math!

    Paypal users:

    press the Add to Cart button to buy a $12 DC Beeper
    press the Add to cart button at the left to put a $2 C&K 8121 momentary switch in your Paypal shopping cart
    press the Add to cart button at the left to put a $2 C&K 8121 momentary switch in your Paypal shopping cart
    Please note that the postage/handling fee is added to the cart only after Paypal knows the shipment destination.

    Downloadable files for DC Beeper

    The Acrobat files of complex diagrams (like the schematic) may not view well on your computer screen - suggestion: use the magnifier to zoom in for better detail or print out the file.

    original docs:

    dcbeep2m.pdf (23k) - an Acrobat file of the DC Beeper manual

    dcbeep2.pdf (40k) - an Acrobat file of the DC Beeper Schematic diagram

    dcbeephu.pdf (24k) - an Acrobat file of the DC Beeper Hookup diagram

    dcbeeper.jpg (58k) - a JPEG picture of the DC Beeper kit

    Ham Radio KITS - TOP PAGE - Washington Island BOOKS