[RndTbl] transistor wall-clock

Gilbert E. Detillieux gedetil at cs.umanitoba.ca
Mon Oct 19 09:45:08 CDT 2015

As long as you're going to pay too much for retro technology, why stop 
at transistors & 7-segment LED's?...  Go for his Nixie tube clock!

On 17/10/2015 4:36 PM, Trevor Cordes wrote:
> Off-topic, but cool:
> http://www.transistorclock.com/?imm_mid=0da80b&cmp=em-prog-na-na-newsltr_20151017
> A guy selling kits to make a all-parts-exposed digital wall clock that
> uses *no ICs* and *no crystals*.  You build it yourself, 1250 parts to
> solder onto a custom board.  Too pricey for me, otherwise I'd love to put
> one together.
> ICYW, I dug around the FAQ and he is cheating a bit: he's using the 60Hz
> of the AC as a timer source.
> Hmm, since it plus into AC, does that mean touching some parts of the
> exposed circuits might give you a nice zap?

Gilbert E. Detillieux		E-mail:	<gedetil at cs.umanitoba.ca>
Dept. of Computer Science	Web:	http://www.cs.umanitoba.ca/~gedetil/
University of Manitoba		Phone:	(204)474-8161
Winnipeg MB CANADA  R3T 2N2	Fax:	(204)474-7609

More information about the Roundtable mailing list