Fabio Eboli wrote:
Hello, Bruce
Using saturated transistors as switches in the current source and
elsewhere isn't conducive to fast switching.
The traditional arrangement using current mode switches is much
faster and more predictable.
This is something I'd like to understand better.
I'm
Il 2012-12-23 11:36 Bruce Griffiths ha scritto:
The simulation indicates that the TAC capacitor charging current is
far from constant whilst charging.
This is due to the use of saturated switches rather than current
steering switches.
The capacitor charging current is poorly controlled.
So in
Merry Christmas everyone!
I have taken some PIX of a disassembled HP 5065A optical unit for your
pleasure!
Tom Van Baak is hosting them at
http://leapsecond.com/corby/5065a-optical/
Enjoy
___
time-nuts mailing list -- time-nuts@febo.com
To
Thank you so much for sharing! This is the cherry on top of the cake for
HP-5065 lovers ;o)
I treasure the goodwill to share. This is how the learning process has taken
place for centuries.
Happy holidays from Mexico.
Sincerely yours,
Edgardo Molina
Dirección IPTEL
www.iptel.net.mx
T
I agree with the previous comment and will be ready to jump into my 5065
when it has trouble. (I hope never) Thanks.
Paul
WB8TSL
On Sun, Dec 23, 2012 at 12:09 PM, Edgardo Molina xe1...@amsat.org wrote:
Thank you so much for sharing! This is the cherry on top of the cake for
HP-5065 lovers ;o)
Il 2012-12-23 07:42 Bruce Griffiths ha scritto:
The classic TAC using current mode switching is similar to the
attached circuit schematic.
Bruce I tried to replicate the circuit
you attached, the pic was low resolution
so I tried to figure the values.
This is the circuit asc text
