vacuum tube digital clock model 1

Hand made with solid beech hardwood casing, proudly made in scotland. User can configure anytime the following features: - 12 or 24 hours time display format; - date in format DD:MM:YY or MM:DD:YY; - DST for US, Europe, Australia or disabled; - Hour for automatic shutdown; - Hour for automatic wake-up'
More details: - 4 IV11 VFD Tubes driven by dedicated chip; - Filaments are alternative current powered via local converter for even display brightness; - Stabilized step-up converter (40-60V adjustable) for anode voltage from a single universal 12V supply; - Timekeeping is based on a specialized extremely accurate Real-Time Clock with an integrated temperature-compensated crystal oscillator. Precision better than 1min/year! - Built-in calendar until 2099; - Backup battery included for maintaining accurate timekeeping when main power of the device is interrupted (CR2032 in socket), even for more than 3 years;  - Buyer should buy a battery - this is not allowed by airmail transportation; - ALARM function, can be disabled if not used; - For alarm and time setting, a single button is used - an user friendly knob - rotary encoder: push to select, rotate left/right to adjust, push when ready; - user manual in English (can be requested prior to buy); - Power supply needed is 12V/1A stabilized output INCLUDED (EU plug); - Spare tubes available ; - Further customization available if the buyer needs different options - please send me a message.

Decimal points usage: - PM indicator (for 12 hours format) is 1st decimal point; - Alarm indicator is 6th decimal point (on when alarm is set); - tubes 2 and 4 dots are used as decimal separators during date display mode.

Settings Setting are based on the Rotary Encoder. One single button, simple and intuitive, it is used for time, alarm and advanced parameters setting. Just push for select, rotate for up/down.