Paulo,

Just wait a week. I am almost done with the write up

On Wed, Jun 15, 2022, 4:30 PM Raj vu2zap <rajendrakumargg@...> wrote:

Paulo,

Connect Q11 collector to the junction of R45 and R48.

Connect the open end of R51 to TX line.

In 602 the OUT-B is pin 5

Audio is for phones only.

Raj

On 15/06/2022 4:12 PM, Paul Allison wrote:

Hi,

I'm building "allanalog" with 1206 smd components on a ? cnc milled pcb ( Easyeda, Flatcam, very old? cncusb , all freeware )

All the circuit except BPF, LPF and power rf section are on a 86x66mm pcb, ( VFO 32x16mm) non the smallest possible,

but I'm a 66 y. o. amateur, not 007......Some questions:

really collector of Q11 is not connected? Why?

On SA602 there are two pins named "2" I suppose non connected are pins "5": right?

On audio output is there enough power for a loudspeaker or only for an headphone?

I do not have a 3d cnc, only a cnc milling machine: are toroid made of plastic? Dimensions?

2.15uH are 32.8T......2uH 31.6T....1.6uH 28.3T ?

Will someone sell the 3d cnc part of the VFO ?

Thank you

Paolo from Italy

Il 03/06/2022 12:57, Raj vu2zap ha scritto:

Q11 collector not connected Farhan.

Raj

At 03/06/2022, you wrote:

Pete and others who requested the circuit, here it is:
1. The circuit is still to evolve into a CW/SSB transceiver, at present it is only SSB.
2. The relay used to switch the crystal and low-pass filters can be replaced with some tricky but simple electronic T/R. I just took the simple route out.
.3 The PA + driver are the only places? where bifilar transformers are used, I will eliminate that as well.?
The write-up is still being edited on? , I publish it on when I am done.



On Fri, May 27, 2022 at 2:12 AM Pete Eaton <zx97lite@...> wrote:

Hi Farhan,

Any luck finding the Daylight Radio schematic.

Thanks!

Pete?? WB9FLW

On Tuesday, May 24, 2022, 07:29:08 AM CDT, Pete Eaton <zx97lite@...> wrote:

No problem Farhan, appreciate you doing this for me.

Have a safe trip home.

Pete?? WB9FLW

On Tuesday, May 24, 2022, 07:04:41 AM CDT, Ashhar Farhan <farhanbox@...> wrote:

Pete,

I will, my thinkpad is acting up and I guess I will have to wait until I reach Hyderabad to fix it.

- f

On Mon, May 23, 2022, 5:14 AM Pete Eaton <zx97lite@...> wrote:

Hi Farhan,

Are you still going to send the Circuit Diagram.

If not I totally understand and will wait for the FDIM Proceedings to get here.

Thanks!

Pete?? WB9FLW

On Saturday, May 21, 2022, 04:12:21 PM CDT, Pete Eaton <zx97lite@...> wrote:

Thanks, that would be *Great*

Pete

On Saturday, May 21, 2022, 04:06:38 PM CDT, Ashhar Farhan <farhanbox@...> wrote:

I guess I can send you the circuit diagram all the same

On Sat, May 21, 2022, 4:20 PM Pete Eaton <zx97lite@...> wrote:

Hi Farhan,

I was on Zoom so I was taking notes as fast as I could during your talk.?? Also took a mental snapshot of the Schematic.

Look forward to getting the Proceedings and your Paper.

Thanks for all you do!

Pete?? WB9FLW?

P.S.? Big Cosby, Stills & Nash Fan here as well !

On Saturday, May 21, 2022, 03:02:42 PM CDT, Ashhar Farhan <farhanbox@...> wrote:

Pete,

Thank you for summing it up.?? "Daylight Again" is a cosby, still and nash song about the losses and memory. I thought it was appropriate for dayton after 2 years.

The bandpass filter as well as the crystal filter is shared.

I wrote the paper for thr FDIM. We will have to wait for them to publish it first.

- f

On Sat, May 21, 2022, 2:44 PM Pete Eaton <zx97lite@...> wrote:

Hi Nigel,

Quick intro name is Pete, call WB9FLW, qth Maryville, IL USA.

For several years now I have wanted to build a BITX Rig from scratch. The Picture you put on of your 40 Meter Transceiver back in 2017 really caught my eye.

Farhan gave a wonderful presentation at FDIM on Thursday that really got my attention. His talk was on a new Analog Rig called "The Daylight Radio" (not really sure were the name came from).

Key Points:

* Hight Performance 7 MHz 5 Watt SSB Transceiver?

* Draws just 24 ma of Current

* 90 dB Dynamic Range, 80 dB close-in Dynamic Range

* 3 D Printed Rock Stable, Low Noise PTO

* Uses 3D Printed Air Core Toroids!

* Junk Box Parts

* Cost Less than $20 to Build

* Simple to Assemble

* Undo the Love - who needs 50 Ohms

* Uses 5 MHz QER Filter

* VFO is at a very low frequency of 2 MHz, able to decode FT8 Signals no Problem

* Receiver Mixers are pairs of JFET 310 in Cascode

* Active Devices 2n2222a, J310, IRF510

* IC's 5532A, NE602

* Uses a PTO, No Air Variable Caps or Vernier Dial Needed!

* PTO is Linear

* It is no more complicated that the BITX Rigs

This is *not* a Bi Directional aka BITX Rig. Only thing shared is the Crystal Filter. One can build the Receiver first, get it operating before constructing the Transmitter.

He finished the Rig just a few days ago and wrote the Paper on the Flight coming over here, it should be posted on in a few days.

I thought I would contact Folks that I thought might me interested thus this Email to you.

When I get any more info from Farhan I will forward it to you asap.

Will try to stir up some more interest.

Best Wishes,

Pete?? WB9FLW

Mail priva di virus.