That was amazing, Allard! I will be passing that on to some friends. Thanks for sharing that with us! N5KNG

Hi Tom, Is it possible for you to provide a sketch of the circuit, so we can be sure to understand what you've done and get it right when we hook it up on the board? If not, then perhaps a little

Dear Konstantinos, We need about 4 months of lead time to change the circuitry, given the lead times for the PCBs, availability of the SMD pick and place, etc. Instead, we are looking at what we can

I do not see any issues with the EEPROM. Everyone protects the first 32 bytes as "stock" delivered from factory. All calibration routines place new values there. Maybe the factory should store a

Hello folks, could anyone describe where to connect those wires form the AGC circuit to the BITX40 pcb? Photos would also help a lot. I just got mine BITX40 recently and now I'm in the process of

Ha! I was wondering what happened. I must have done this by accident as well! Thanks!

Except you forgot the switch! Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner –

That is my favorite reverse power protection circuit. I add a kickback diode across the coil as diodes are cheap. Allison

It will be easier to switch between different firmware if there's an easy way to set different offsets to the EEPROM address region each flavor of firmware uses. For example, Farhan's stock firmware

Why? I believe the answer is yes, but cooling is still an issue and the higher power is barely twice. That said I have a backup amp that runs a pair of IRF510s at 28V that has proven reliable though

Someone asked for a better schematic. Ask and ye shall receive. I don’t know how to insert an attachment directly into the text body of the email. You will have to click on it to open it.

I like features of both. I have found it to be a simple process to load either one when I want. One possibility someone may be able to implement is an on-board micro SD card reader and the ability

That’s the best one yet. Regards. Max K 4 O D S. I've Never Lost the Wonder. Antique Electronics Site: http://www.angelfire.com/electronic/funwithtubes/

Hi Marco I just upgraded and Yes that solved most of my problems. Very little clicking and overall better performance.Thank for pointing me inthe right direction Frank

Thanks David, but I'm looking for pics of the Microphone or the Key jack. This is a vanilla install kids. I'll add a note about adding a fuse in the power line. Or yo know it is a wiki... hint hint.

THANKS! Can you please upload a higher resolution version of the diagram? Also the yellow wire is very hard to see against the white backgrond. Perhaps a darker yellow or a light grey background?

I prepared my uBitx for it by wiring up a double throw switch.

Ashhar, I am fully in favor of Dr. Lee's software and developments. When I first got uBitx and fired it up, I was fully disappointed with the poorness of its firmware. Just to mention the stock Split

Update: Did more experimenting . . . problem goes away when bypassing output filters/relays. Connecting antenna directly to pin 5 of T11 works perfectly - gives me 10W key down at 7.050mhz, and about

You could try forcing the USB chip into the reset state by holding the reset\ line low (FT232RL - pin 19, CP2102 - pin 9). Test it out by connecting a 100 ohm resistor from ground to the reset pin.