IN-14 Nixie Tube Clock With Polished Aluminum Case

IN-14 NIXIE TUBE CLOCK IN SOLID
ALUMINUM CASE

Highly Accurate TCXO Timebase
Lithium Cell Backup
Software Release RTC-1.1

Forget about tinny, thin-gauge stainless 'cube-boxes' that are TIG welded and finished in a Chinese Sweatshop....This case is precision CNC milled from a solid 3lb bar of 6082 Alloy. The case is then hand-finished to a bright polish, so bright that you can see 12 nixie tubes and you only bought 6!

The clock features:


- Case machined from solid Alloy 6082.
- Hours, Minutes and Seconds display
- Timebase is a Temperature Compensated Crystal Oscillator (TCXO)
- Real Time Clock with Lithium Cell backup of time and all user settings
- Simple time setting using two buttons
- 12 or 24 hour modes
- Programmable leading zero blanking
- Five programmable neon colon settings (Flashing AM/PM indication, illuminated AM/PM indication, both flashing, both on, both off)
- Maintains time during setup mode, eg. When changing between standard time and daylight savings time
- Seconds can be reset to zero to make small adjustments / precisely set the time
- Infinitely programmable night time blanking period to save tubes
- Separate modes for colon neons during night time blanking
- Four display modes: Dim, Bright, Fading digits, Blanked
- Ten different possible fade speeds in fading digit mode

The case is machined from solid 6082 Aluminium Alloy
and finished by hand to a high polish

The use of a precision TCXO chip as the timebase gives supreme long-term timekeeping accuracy of +/- 1 minute per year. Every 64 seconds, the TCXO IC measures the temperature of it's in-built quartz crystal oscillator and adjusts the load capacitance to compensate for temperature effects. Ordinary quartz crystals usually keep 20ppm accuracy or special crystals can be found with 10ppm accuracy. However, this is a theoretical accuracy and PCB layout effects can significantly reduce the accuracy. The DS3231 IC integrates crystal, temperature compentation and real-time clock into a single IC to achieve true 2ppm accuracy over a wide use-temperature range of 0C to 40C (32F to 104F)

Component side of the pcb underneath the clock.
You can barely see the base as it is made of clear acrylic

The clock is fully inclusive, except for power supply:

Uses AC or DC power supply (9-12V, minimum 250 mA) This is not supplied - It is more economical for the winning bidder to buy a suitable adapter locally, suitable for local power outlet type. Full details of the power supply are provided in the comprehensive documentation, and it is very easy to obtain cheaply, including from ebay.

Typical power supply suitable for the clock

The two buttons have the following functions:

SW1: Set / Blank
SW2: Up / Reset Seconds

Setting the time:
Press and hold 'Set / Blank' button for 2 seconds until the minutes flash. Press the 'Up / Reset Secs' button to set the minutes.

Briefly Press 'Set / Blank' again and the hours will flash. Press the 'Up / Reset Secs' button to set the hours.

Briefly Press 'Set / Blank' again to revert to normal clock operation.

Display modes:
Briefly Press 'Set / Blank' button to toggle between display modes:

Dim ---> Bright --->Fading --->Blanked

Resetting seconds:
From normal clock operation, press and hold 'Up / Reset Secs' button for 2 seconds. Seconds will be set to zero, and held until the button is released.

Entering configuration menu:
Press and hold 'Set / Blank' button for 4 seconds.

Note About Feedback: Please leave me feedback when you have received your item and are happy with the transaction. I will do the same for you. If you have any concerns, PLEASE contact me first before leaving negative feedback. I will always try very hard to resolve any problems.

Note About Postage Costs: The delivery price charged is for handling, packing, postage. This is a very heavy item as the case is machined from solid. The postage cost is actually LESS than I pay at the post office. Should you wish, all my items can be collected from South Tyneside, UK by arrangement, with no handling or shipping costs.

Note About Delivery Time: I try to send your item as soon as possible, Normally no later than 2 days after payment is received.

If you have any questions: Please ask me a question, or email me - ebay@pvelectronics.co.uk

SPECIAL NOTE FOR BUYERS / BIDDERS IN ITALY: You are very welcome to bid on this item as it will be sent by a recorded or tracked delivery..