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Re: blown LM 386 ?
perhaps one needs to replace with 1 amp diode? - preferably one like 1N5819 and manage to park it on the smd board sarmaOn Fri, Jul 14, 2017 at 12:49 PM, Raj vu2zap <rajendrakumargg@...> wrote: Check voltage on both sides of D18, mine had a similar problem and the diode was blown! --
Regards
Sarma ? |
Re: blown LM 386 ?
Check voltage on both sides of D18, mine had a similar problem and the diode was blown!
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Raj At 14/07/2017, you wrote:
rewire my Bitx40 today and now there is no audio ! |
Re: Bitx 40
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Re: Bitx40 no RX
Als u Gmail gebruikt, hoef je niet eens te kopi?ren / plakken, gewoon op de "vertalen" knop. Ik hou van deze multi language thread. haha Dan. 2017-07-13 20:07 GMT-05:00 RCC WB5YYM <curtis03@...>:
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Re: Bitx40 no RX
Still won't help you pick up chicks at a hooka bar in Rotterdamn, though :) 2017-07-13 21:07 GMT-04:00 RCC WB5YYM <curtis03@...>:
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Re: Bitx 40
I think at that price I might as well order the entire kit and have a spare raduino for $14. There's probably a reason they don't advertise this option, like it's a loss leader.? On a side note - and this may make me a sadist - I wonder if there's an option to order a completely unassembled kit. Imagine the challenge (agony) of soldering your own SMTs, and the bragging rights if it work! On Thu, Jul 13, 2017 at 8:30 PM, ekelley <ekelley828@...> wrote:
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Re: AGC Boards
Thanks! DuWayne good stuff. Anyone that wanted a board like the red one posted above I did reorder more and will again offer at cost. The last price was best guess from just an envelope and a stamp so pending no crazy stuff at the Post Office price will remain the same. Please keep in mind I am not a store so hold all requests until the new batch is posted. They will be like the red ones above and not the updated silk like DuWayne posted. ?Should be about 2 weeks 73 ?Happy building ? David |
Re: Bitx 40
¿ªÔÆÌåÓýNo, DHL is extra and most have had a bad experience with DHL.Its not that much faster and 45 does include standard shipping. Ed On 7/13/2017 6:07 PM, Andrew Krause
wrote:
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Re: AGC Boards
I did this board layout after the AGC mod first came out. ?They were just for me, so I did not bother with parts layout.
Seeing the interest after David offered up his extra boards, I updated the files and added a parts layout PDF to the dropbox files at https://www.dropbox.com/sh/pg3otf9cwtekkoo/AADGvAfmP_E96njuNP5UX_Y9a?dl=0 I also uploaded this as a shared project at OSHPark.com . ?Boards can be ordered from them, and I know they will ship to DX. Their price is about $12 for 3 boards including shipping to the US. ?Don't have any idea what shipping to a DX location would be. The link is ? -- DuWayne? KV4QB |
Re: Re[Bitx20] Spare Raduino Boards and PCBs
¿ªÔÆÌåÓýI also have a Complete Raduino Board I designed.? It has lots of features better than original. RaduinoX *I2C connector for controlling more I2C, like another SI5350 or I2C LCD. *Spare I/O pins brought out.? D0 and D1 too! *Rotary Encoder Connector with Pull-ups and De-Bounce Caps, makes it a lot easier to go Rotary. *Much better PS conditioning. *Nano mounts in Sockets and on Back for easy removal. *USB faces to edge of box side. *Contrast Pot accessible. *All Arduino outputs brought out to connectors. *Level Shift? for SI part to operate per specification. *Completely compatible to Original Raduino .? Fits LCD perfectly. Here is a Picture of RaduinoX. Bare PCBs are $9, shipping included. I will ship them to US (48 St.) USPO with Nano $38 without $34.? I have been bit on Paypal charges, so $2 for paypal.
I have several built and tested.? Privite email me if you are
interested.? "MotDog at Verizon dot net". Bare PCBs are $9, shipping included. 73, Mike, WA6ISP-- Mike Hagen, WA6ISP 10917 Bryant Street Yucaipa, Ca. 92399 (909) 918-0058 PayPal ID "MotDog@..." Mike@... |
Re: Still Not Working
Vince Vielhaber
I never thought about it 'cuze I have a sig gen.
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Vince. On 07/13/2017 06:10 PM, Arv Evans wrote:
Curt and others.... --
Michigan VHF Corp. |
Re: AGC Boards
Vince Vielhaber
Ok, internet's back up so the payment has been sent!
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Thanks! Vince. On 07/13/2017 05:01 PM, N8DAH wrote:
No worries if I reorder which I may I will get ya another. --
Michigan VHF Corp. |
Re: Still Not Working
Well guys, things just took a turn for the worse. In an effort to see if RV1 and R136 made a difference before I got in and took some voltage reading and plotted them on the voltage reading chart I put my QRP power meter on the Bitx and started to adjust both of these pots. I had the QRP meter connected to my Fluke meter like I do on a nearly daily basis with my FT-817 while I'm adjusting the power down to 200mW for WSPR using the SignaLink. I was using a Spectrol insulated screwdriver. Neither pot seemed to make a difference.?
When I looked down at the display I noticed that the top row of the display had solid black blocks. Nothing that I did inside the radio was shorted out by me. I cycled the power a few times and the blocks didn't go away. I disconnected the power supply and plugged in the Arduino to my laptop. The laptop no longer communicates to the Raduino.? The only differnce was that I used my 13.8v Samlex power supply instead of the 12v wall wort that I had been using. The power supply was turned on first, the radio was plugged in and then turned on. It's not like I had the radio on and then turned on the power supply.? So I'm at a turning point. I have a defective board and now what appears to be a defective Radrio. I either cut me losses or buy a new kit. Buying a new won't break me but spending more money with these guys is the struggle.? The anount of equipment that I've worked on in my line of work would be mind boggling to most. I've really never had one product that gave me this many problems. I'm sure many people will think "you had to do something for this to happen". I don't see it that way.? I'm not going to start another rant. Surely I can't be the only person that's had this type of experience. I'll leave it at that.? |
Re: Bitx 40
Does that figure include DHL shipping? On Thu, Jul 13, 2017 at 6:27 PM ekelley <ekelley828@...> wrote:
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Re: Bitx 40
¿ªÔÆÌåÓýI bought the board without the raduino just send them the $45 to hfsignals@...via paypal. You also get all the extras, mic, volume, connectors etc. Ed On 7/13/2017 11:52 AM, George
McClelland Jr wrote:
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Re: Still Not Working
Curt and others.... I am surprised that one of the programming types has not yet configured the 3rd output of an Si5351a synthesizer to serve as a signal generator for testing their BITX-40.? That is sort of like gazing at one's navel, but it might actually work. Arv? _._ On Thu, Jul 13, 2017 at 4:04 PM, Curt M. <Kc3hjp@...> wrote: Hi Al, thanks for your input. It didn't transmit prior to being able to hear myself and my 100 watt rig was set for 5 watts using an outdoor antenna with no antenna on the Bitx. I'm going to try and get some voltage readings tonight and log them on the chart that someone sent me with the known good voltages. That's about all I can do until I can get with my friend that has a scope and signal generator.? |
Re: Still Not Working
Hi Al, thanks for your input. It didn't transmit prior to being able to hear myself and my 100 watt rig was set for 5 watts using an outdoor antenna with no antenna on the Bitx. I'm going to try and get some voltage readings tonight and log them on the chart that someone sent me with the known good voltages. That's about all I can do until I can get with my friend that has a scope and signal generator.?
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