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I generally manage with a 1K resistor or a single 1N4148 diode , with cathode facing ground. So far it has been working well for me. I do use model JHD162 modules. econjack@...> wrote:

Most have a square pot on the back of the display. Not so with yours? Jack, W8TEE To: [email protected] Sent: Saturday, February 4, 2017 8:16 PM Subject: [BITX20] adjusting the contrast on the LCD I

The four push buttons are used to control the frequency and its increment. One button allows you to move the cursor above the field that you wish to change. When you get it above the field that you

Only one of the groups.io out of 6 I belong to show the UPLOAD button. 73 Ken jgaffke@...> wrote:

A few weeks ago I uploaded LTSpice plots and schematics for other bands, 80m 60m and 20m. I finally got some time to build the 20m BPF. Even though the plot was good, the BPF did not work. I double

Seems the upload stopped around the latest Groups.IO update. Oh well. 73 Ken jgaffke@...> wrote:

Have been several folks complaining of not being able to upload files. ?Searching for "upload" in these messages, appears the problem started on Feb 1 somewhere between posts 21263 and 21280. ? Good

Yes, This really should be mounted on the other side of the board for cases like this. It would require a slightly different pattern, but it could be done as is. Ash? It shouldn't take much adjustment

I am trying to upload to the group files, but no UPLOAD button. 73 Ken VA3ABN

I had to replace the LCD that came with the radio.? The new LCD has its contrast set too high.? Does anyone know how to change this?? Is it the blue and white pot next to the arduino?

The stm-2 board with the modified Adafruit drivers are much faster. Here is a Youtube video showing the difference. https://www.youtube.com/watch?v=5mDnKBNl9sY After I get a couple of projects

Very much on topic for me, thanks! ?So getting sent to ACS is to be expected. ?Guess I'd better go check that mailbox. In my case, the final 4 zip digits may be a bit superfluous. ?A county of over

Rob Found it in my reference book. Thanks Art Sent from my iPhone

Gidday Randy Attached the circuit here. ?Audio not so scratchy and more mellow. Ugly construction is very fiddly but it works. ?Take the red lead off the volume pot and attach AUDIO IN. Attach AUDIO

Rob Initially just the 40 m version. I am looking down the road to a multiband at some later date. Thanks for the info. Time to get my reference book out to review. So with the switch closed vcc is

Yes, Raj, I think it is though I haven't heard that from him. Regarding the PLJ-6LD counter, there is an interesting video on YouTube examining and demo-ing the unit. Google it. I have found a web

Ooops should read pulldown as diagram. Most of the code at the moment is display stuff. The icon.h can be deleted I suspect as it was development penguin pic but i didn't spend time looking too hard

Noel Which AGC circuit did you use? Randy

OT. All foreign mail has no zip+4 code on it which is used for routing and delivery in the US. It is all routed (via image) to ACS for US routing. Each section of the country has a central database of

I have replaced the IRF510 and this what I found with a cheap Chinese ESR component tester. The original had C=388pf, Vt= 3.7. Replacement has C=1.13nF, Vt= 2.7. Upon the first key up, the speaker