I made a clock with those tubes few years ago and I can confirm they do not
fail as quickly - they are still fine. Colour of the discharge suggests
there was more mercury used than in regular tubes. Great replacement for
IN-1, but I would pick different tube if I was to make a new clock - the
Tape the tube to a wooden dowel, like a closet rod, and pin one end on a
carpeted surface so that you can smack the entire length of the dowel (with the
taped 7971) against the carpeted floor. This will transfer the shock to the
full height of the 7971 and separate the overlapping segment
I’m not heard of the wooden dowel method. Is that just hitting the tube?
In the dark
IanV
> On 26 Aug 2021, at 15:56, Robert G. Schaffrath
> wrote:
>
> $1 for a B-7971?!?! Incredible. The best price I ever saw was late
> 1970's/early 1980's when they were still common. As I mentioned in the
The imaginary Nixie tube: IN-i
> On Aug 27, 2021, at 9:08 AM, Yohan Park wrote:
>
> Which tube isn't? ;)
>
> On Thursday, August 26, 2021 at 12:31:14 PM UTC+2 Bill Notfaded wrote:
> These tubes are better than the IN-1 tubes for sure!
Terry Bowman, KA4HJH
"The Mac Doctor"
New models are LEDs but at least they used a nice color. Spendy little
clocks!
On Friday, August 27, 2021 at 6:18:03 AM UTC-7 Dekatron42 wrote:
> Davtron has the specifications:
> https://www.davtron.com/product-detail.php?M877-17 !
>
> Seems to cost around USD $480 at some places. Half price
Davtron has the specifications:
https://www.davtron.com/product-detail.php?M877-17 !
Seems to cost around USD $480 at some places. Half price at eBay:
https://www.ebay.com/itm/Davtron-Chronometer-M877-/164283847188?_ul=IL
/Martin
On Friday, 27 August 2021 at 14:56:55 UTC+2 martin martin
Which tube isn't? ;)
On Thursday, August 26, 2021 at 12:31:14 PM UTC+2 Bill Notfaded wrote:
> These tubes are better than the IN-1 tubes for sure!
>
> Bill
> On Wednesday, August 25, 2021 at 9:11:06 PM UTC-7 gerritde...@gmail.com
> wrote:
>
>> I am currently trying to figure out if the LC-516
Since transformers isn't my best area, I only have basic understanding of
the intricacies but I have experimented some with different transformers in
different cases like when driving Trochotrons and Dekatrons I decided to
ask an acquaintance who has worked with transformers. His name is Ed
