o have a military counter based on them, nixie display,
>>
>> Bill Hawkins
>>
>>
>> -Original Message-
>> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
>> Behalf Of J. Forster
>> Sent: Saturday, January 09, 2010 4:49 PM
>
I should have kept that pokie machine I made with three uniselectors,
lamp arrays and a whole bunch of relays way back when I was 17,
perhaps I could have made a fortune with it now.
Cheers,
Steve
2010/1/10 Bob Camp :
> Hi
>
> Maybe a system using a rotary electrical machine synchronous to the po
2010/1/10 Magnus Danielson :
> Steve Rooke wrote:
>>
>> 2010/1/9 Tom Clifton :
>>>
>>> http://transistorclock.com/ has a very interesting (though a bit
>>> expensive) kit for sale. A 10" x 11" circuit board sporting nearly 200
>>> transistors and 600 diodes to drive six seven-segment displays. S
m
To subscribe to the fun with tubes group send an email to,
funwithtubes-subscr...@yahoogroups.com
- Original Message -
From: "Chuck Harris"
To: "Discussion of precise time and frequency measurement"
Sent: Saturday, January 09, 2010 5:09 PM
Subject: Re: [time-nuts
Discussion of precise time and frequency measurement"
Sent: Saturday, January 09, 2010 4:27 PM
Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
p...@phk.freebsd.dk said:
That is what was known as a "synchronous clock". Tom has one running
off his atoms
--
From: "Don Latham"
Sent: Saturday, January 09, 2010 7:29 PM
To: "Discussion of precise time and frequency measurement"
Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
Hp kinda stole the idea from the old General Radio syncro clock
Hp kinda stole the idea from the old General Radio syncro clock (I have
two of these). In the longago time, we had a homemade version that
generated 1 sec ticks to drive clocks in our research tower lab at New
Mexico Tech. It ran for a number of years.
Don Latham
Chuck Harris
> Sing is an understat
riginal Message-
> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
> Behalf Of J. Forster
> Sent: Saturday, January 09, 2010 4:49 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
&g
4:49 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
>
> How about using ring counters? No decoder/drivers needed. A tube ring
> counter, driving a Nixie directly.
>
> -John
>
>
>
As an undergraduate at a technical school, there were guys who were
utterly hardware clueless in the dorms. The roomie of a friend was such a
guy.
Over winter vacation, I took his GE clock appart and flipped the magnet
structure over so it would run backwards.
He came back, dug out some EE books
Sing is an understatement!
The motor is essentially a stepper motor that is being run with
a 2 phase excitation. It is driven with 1000Hz, and whines pretty
good... Fortunately it is in a thick aluminum case that is both air
and water tight.
It is considerably quieter if you make sure the ball
, 2010 4:49 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
How about using ring counters? No decoder/drivers needed. A tube ring
counter, driving a Nixie directly.
-John
HP made one with a sync motor running a Veeder Root counter. Something
like a 115A. Runs off 100 KHz from their crystal oscillator. Neet unit.
It does "sing" a bit.
-John
> In message <15f711f4-5f3d-4cb3-8745-34806a416...@cq.nu>, Bob Camp writes:
>>Hi
>>
>>Maybe a system using
How about using ring counters? No decoder/drivers needed. A tube ring
counter, driving a Nixie directly.
-John
>
> On 1/9/10 12:09 AM, "Steve Rooke" wrote:
>
> 2010/1/9 Tom Clifton :
>> http://transistorclock.com/ has a very interesting (though a bit
>> expensive) kit for sale. A
In 1979 I went to the People's Republic of China with a delegation and a
Data General Nova 1200 computer. In Shanghai, I was proudly shown a
Chinese clone of the Nova, but the boards were huge (much bigger than the
Nova's 15" x 15").
The Chinese had taken all the MSI in the 'puter and broken it do
p...@phk.freebsd.dk said:
> That is what was known as a "synchronous clock". Tom has one running
> off his atoms on his web-page...
When I was a kid, I took apart my share of clocks and/or clock radios.
They all had the same basic mechanism. It was a shaded pole motor with a
semi sealed unit
In message <15f711f4-5f3d-4cb3-8745-34806a416...@cq.nu>, Bob Camp writes:
>Hi
>
>Maybe a system using a rotary electrical machine synchronous to the power line
>driving a system of gears. and pointers on a dial
That is what was known as a "synchronous clock". Tom has one running
off his atoms o
Max Robinson wrote:
Steve wrote.
Bah humbug! Stupid modern day design, it'll never be any good, you
need to use valves to make real gear :-)
Amen brother, but it would sure heat your house in the winter.
Sure thing, while we are having cold winter for a change (-14,0 C
outside the kitchen wi
s.com
- Original Message -
From: "Steve Rooke"
To: "Discussion of precise time and frequency measurement"
Sent: Saturday, January 09, 2010 2:09 AM
Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
2010/1/9 Tom Clifton :
http://transistorclock.co
On Jan 9, 2010, at 1:26 AM, Poul-Henning Kamp wrote:
> In message <8256bb1c-7284-44f9-bba5-e2e8e014d...@gmail.com>, Scott Burris
> write
> s:
>
>> I have just the divide by 60 down to 1Hz done. It works now that I
>> found that one diode I put in backwards.
>
> Is there any sign of a 50Hz o
I've actually got an EPUT with the prescaler good to 1GHz. Complete with
manuals.
Too many BA's, not enough time..
Bob Camp wrote:
Hi
I *think* I still have a case of gas filled dual triodes sitting in the shed.
The Beckman EPUT meter used them in the decade divider / display sections. I
don
Hi
I *think* I still have a case of gas filled dual triodes sitting in the shed.
The Beckman EPUT meter used them in the decade divider / display sections. I
don't have any of the meters any more, but I do have the spare parts for them.
Go figure
They actually make pretty good low speed l
At 7:30 AM -0800 1/9/10, Lux, Jim (337C) wrote:
I can't help wondering if you go do better than the 4 bit
counter:4-10 decoder:10-7 decoder. Yeah, simple diode matrices in
an AOI configuration are easy, but surely a bit of work (as in
digging up archaic designs) could find a "lower part coun
Hi
Maybe a system using a rotary electrical machine synchronous to the power line
driving a system of gears. and pointers on a dial
If the transistor clock is worth $200, I should be able to sell something like
that for $400. Throw in the alarm buzzer feature and it could go for $600...
Off t
Poul-Henning Kamp wrote:
In message <4b48686a.9713f30a.4f7b.4...@mx.google.com>, Raj writes:
Poul,
You can get 60Hz from this xtal circuit
http://www.wiparat.com/60hz-clock-pulse-generator-by-ic-mm5369/
But that would really spoil an all-transistor clock, wouldn't it ? :-)
True.
50 Hz sh
Steve Rooke wrote:
2010/1/9 Tom Clifton :
http://transistorclock.com/ has a very interesting (though a bit expensive) kit for
sale. A 10" x 11" circuit board sporting nearly 200 transistors and 600 diodes
to drive six seven-segment displays. Suitable for framing... As delivered runs on 60h
On 1/9/10 5:01 AM, "Rex" wrote:
> Steve Rooke wrote:
>> Bah humbug! Stupid modern day design, it'll never be any good, you
>> need to use valves to make real gear :-)
>>
>> Steve
>>
>>
>
> Being an Amurkan myself, by valves, I assume you are talking about a
> hydraulic clock. Yep. That's
On 1/9/10 12:09 AM, "Steve Rooke" wrote:
2010/1/9 Tom Clifton :
> http://transistorclock.com/ has a very interesting (though a bit expensive)
> kit for sale. A 10" x 11" circuit board sporting nearly 200 transistors and
> 600 diodes to drive six seven-segment displays. Suitable for framin
Hi
It looks like it's a pretty simple circuit. A jumper across one of the flip
flops in the divider ring counter should convert it from 60 Hz to 50 Hz pretty
easily.
Bob
On Jan 9, 2010, at 4:26 AM, Poul-Henning Kamp wrote:
> In message <8256bb1c-7284-44f9-bba5-e2e8e014d...@gmail.com>, Scott
to 1 and 2 to 1 ratios as the page
>> above indicates.
>>
>> Stanley
>>
>>
>>
>> - Original Message
>> From: Bob Camp
>> To: Discussion of precise time and frequency measurement
>> Sent: Fri, January 8, 2010 8:10:34 PM
>> Subject
2010/1/10 Rex :
> Steve Rooke wrote:
>>
>> Bah humbug! Stupid modern day design, it'll never be any good, you
>> need to use valves to make real gear :-)
>>
>> Steve
>>
>>
>
> Being an Amurkan myself, by valves, I assume you are talking about a
> hydraulic clock. Yep. That's pretty "old school". Bu
Steve Rooke wrote:
Bah humbug! Stupid modern day design, it'll never be any good, you
need to use valves to make real gear :-)
Steve
Being an Amurkan myself, by valves, I assume you are talking about a
hydraulic clock. Yep. That's pretty "old school". But we could step back
to sundials o
In message <4b48686a.9713f30a.4f7b.4...@mx.google.com>, Raj writes:
>Poul,
>
>You can get 60Hz from this xtal circuit
>
>http://www.wiparat.com/60hz-clock-pulse-generator-by-ic-mm5369/
But that would really spoil an all-transistor clock, wouldn't it ? :-)
--
Poul-Henning Kamp | UNIX sinc
Poul,
You can get 60Hz from this xtal circuit
http://www.wiparat.com/60hz-clock-pulse-generator-by-ic-mm5369/
I don't know if the chip is still available, I remember building a few of them
some 3 decades ago. My dad was impressed by the digital clock but kept
commenting that his 25 year old Om
2010/1/9 Morris Odell :
>
> From: Steve Rooke
> Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
> To: Discussion of precise time and frequency measurement
>
>
> 2010/1/9 Tom Clifton :
>> http://transistorclock.com/? has a very interestin
In message <8256bb1c-7284-44f9-bba5-e2e8e014d...@gmail.com>, Scott Burris write
s:
>I have just the divide by 60 down to 1Hz done. It works now that I
>found that one diode I put in backwards.
Is there any sign of a 50Hz option ?
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@f
From: Steve Rooke
Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
To: Discussion of precise time and frequency measurement
2010/1/9 Tom Clifton :
> http://transistorclock.com/? has a very interesting (though a bit
expensive) kit for sale.??A 10" x 11"
2010/1/9 Tom Clifton :
> http://transistorclock.com/ has a very interesting (though a bit expensive)
> kit for sale. A 10" x 11" circuit board sporting nearly 200 transistors and
> 600 diodes to drive six seven-segment displays. Suitable for framing... As
> delivered runs on 60hz but there i
Easy, make a jig, preform and cut the leads to length, solder everything
from to top side.
Or use tape-and-reel and an auto-inserter.
But, the IC-less clock is not nearly as cool as the clock that just uses neon
bulbs for the logic... don't need no stinkin' transzippers.
---
On 1/8/2010 6:27 PM, time-nuts-requ...@febo.com wrote:
You must see it to believe it!
I won't buy one until it comes in surface mount.I *hate* flipping
PCBs over and clipping leads.
;-)
-ch
___
time-nuts mailing list -- time-nuts@febo.co
I'm building one mostly for the nostalgia factor -- that plus it's a
good use for that roll of 1000 1N4148 diodes I won at auction!
I have just the divide by 60 down to 1Hz done. It works now that I
found that one diode I put in backwards.
Eventually I'll have to tie it to my Thunderbolt
ssage
From: Bob Camp
To: Discussion of precise time and frequency measurement
Sent: Fri, January 8, 2010 8:10:34 PM
Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
Hi
It seems like the diode to resistor ratio is a bit off in that design.
In order to go into further detail, I
- Original Message
From: Bob Camp
To: Discussion of precise time and frequency measurement
Sent: Fri, January 8, 2010 8:10:34 PM
Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
Hi
It seems like the diode to resistor ratio is a bit off in that design.
In
time and frequency measurement
Sent: Fri, January 8, 2010 8:10:34 PM
Subject: Re: [time-nuts] Digital Clock kit - no Integrated circuits!
Hi
It seems like the diode to resistor ratio is a bit off in that design.
In order to go into further detail, I would have to admit to starting out in
th
Hi
It seems like the diode to resistor ratio is a bit off in that design.
In order to go into further detail, I would have to admit to starting out in
the pre-integrated circuit logic era
Bob
On Jan 8, 2010, at 8:07 PM, Tom Clifton wrote:
> http://transistorclock.com/ has a very inter
In a message dated 09/01/2010 01:37:39 GMT Standard Time, scot...@yahoo.com
writes:
and even THAT doesn't stop me from still wanting one...:)
My brother-in-law is in an electronics tech program at the local community
college. I'll have him put it together for me. I'm sure that he coul
> Even more unfortunately, that still doesn't stop it being
> useless expensive crap :-(
and even THAT doesn't stop me from still wanting one... :)
My brother-in-law is in an electronics tech program at the local community
college. I'll have him put it together for me. I'm sure that he could
The real touch of class is the zip tie holding the cap in place!
gandal...@aol.com wrote:
In a message dated 09/01/2010 01:08:06 GMT Standard Time, kc0...@yahoo.com
writes:
http://transistorclock.com/ has a very interesting (though a bit
expensive) kit for sale. A 10" x 11" circuit board
In a message dated 09/01/2010 01:08:06 GMT Standard Time, kc0...@yahoo.com
writes:
http://transistorclock.com/ has a very interesting (though a bit
expensive) kit for sale. A 10" x 11" circuit board sporting nearly 200
transistors
and 600 diodes to drive six seven-segment displays. Suit
http://transistorclock.com/ has a very interesting (though a bit expensive)
kit for sale. A 10" x 11" circuit board sporting nearly 200 transistors and
600 diodes to drive six seven-segment displays. Suitable for framing... As
delivered runs on 60hz but there is a note about conversion to 50
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