Its a form of CE with a resistor in series with the emitter coupled with
transformer feedback from collector to base.
Production scheduling likely prevents substitution of alternatives to achieve a
faster delivery.
Assembly costs would likely increase if leaded parts are substituted.
Initial
Julien
Wow chunk of money is correct for a new tube if even available.
But shipping south will be very costly.
Regards
Paul
On Mon, Jun 25, 2018 at 2:52 PM, Julien Goodwin
wrote:
> Thanks for the on & off-list responses folk.
>
> Sadly I didn't have a usable RS232 adapter set when I first
Thanks for the on & off-list responses folk.
Sadly I didn't have a usable RS232 adapter set when I first powered this
on a month back. It's actually on a desk I'm borrowing in Sunnyvale[1]
(California), hoping to determine if it's worth the significant cost of
shipping it home to Sydney[2].
I
Doesn't the 5062 use M/N
Bert Kehren
In a message dated 6/25/2018 12:31:10 PM Eastern Standard Time,
rich...@karlquist.com writes:
On 6/24/2018 10:21 AM, cdel...@juno.com wrote:
> Hi,
>
> I've repaired a few 5065A A1 synthesizer modules recently and lets just
> say that they are not my
In message , "Richard (Rick
) Karlquist" writes:
>Did I miss the reason as to what was wrong with M/N?
I don't think there is anything wrong with M/N, but the A1 in
HP5065 suffers from dead/drifting/dying and obsolete components
in the divider.
I tried replacing the divider with a
To those who pre-ordered TNS-BUF boards:
We've had a delay due to parts availability -- a common transistor
(PZT3904) is apparently on worldwide back order with lead times quoted
of up to a year. Our contract manufacturer has finally found a source,
but they will not be delivered until
On Mon, 25 Jun 2018 10:46:54 -0400
Bob kb8tq wrote:
> Does UTC exist ( real time ) at the 1 ns level?
Currently, it does not. The clock comparison uncertainties are
still in the order of 1-3ns for short distances (several 100km)
and grow quite a bit once you go over something like 2000-3000km.
On 6/24/2018 10:21 AM, cdel...@juno.com wrote:
Hi,
I've repaired a few 5065A A1 synthesizer modules recently and lets just
say that they are not my favorite repair!
I decided to go back to a project I started a while back to try and
replace the A1 module with a DDS implementation.
I built up
Hi,
My purpose was to provide an inexpensive (<$30.00) and simple way to
replace a defective A1 without degrading the performance the original A1
gave.
The Chinese DDS allows this without having to solder all those tiny pins!
Both styles actually performed better than the original, and the same
Hi
On a Time Nut metaphysical note -
> On Jun 25, 2018, at 10:38 AM, Tom Van Baak wrote:
>
> Steve,
>
>> I need the rising edges of both the 10 MHz and 100 MHz squarewave outputs
>> to be aligned with the GPS 1 pps (UTC) to within 1 ns.
>
> Two comments.
>
> 1) If you divide 100 MHz -> 10
Steve,
> I need the rising edges of both the 10 MHz and 100 MHz squarewave outputs
> to be aligned with the GPS 1 pps (UTC) to within 1 ns.
Two comments.
1) If you divide 100 MHz -> 10 MHz -> 1 Hz then (with careful design,
calibrated layout / wiring) you can have all three rising edges within
On 6/25/18 6:05 AM, Dana Whitlow wrote:
A useful hardware demonstration of DDS phase truncation is to do step a DDS
through a long
series of frequencies at a relatively low stepping rate, and view the
output with an FFT-based
(real-time) spectrum analyzer set for spectrogram display. Watch
On 6/24/18 2:05 PM, Hal Murray wrote:
Poul-Henning Kamp said:
That's one of the reason I went with Bo's DDS (32bit0 instead of the eBay
modules (20-24 bit). Higher resolution mitigates the spur problem at least a
little bit.
I think it also moves the spurs closer in. But maybe if they are
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