• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

VFD tube clock

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baudouin0

Member
Joined 2019
#1
I am going to build a clock with IV-11 Nixie VFD Tubes. Now I understand I need 25V or so for the tubes and 1.65V for the heaters. The problem is I wish to use the 60KHz MSF signal to synchronize the clock. This requires a quiet supply. So looking for some suggestions on generating the supply voltages. If I use a switching supply if it runs higher than 60KHz will that still generate noise at 60KHz or should it be completely linear. I would also like the display to dim at night. I am not going to multiplex the display as that will create noise. Dimming would be be either reducing the HT supply or change the grid voltage. This is the RX and contains a 60KHz crystal as filter and a ferrite rod antenna.

https://www.amazon.co.uk/60kHz-Atomic-Clock-Radio-Receiver/dp/B01KH3VEGS
 
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