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W8TEE Pricing for Foreign Orders
Jack Purdum
There's been some confusion about foreign orders. The weight of the boards is such that I can send up to 4 boards for the same mailing cost. Therefore, in an effort to try and save you some cash on multiple boards, use this schedule of (US$) prices:
? ?Number of Boards ? ? ? ? ? ? ? ? ? ?Cost ? ? ? ?1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? $15.00 ? ? ? ?2 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? $22.50 ? ? ? ?3 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? $30.00 ? ? ? ?4 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? $37.50 Clearly, if you have friends who want a board, bundle the order together to save a few dollars. Jack, W8TEE |
W8TEE TFT /VFO BOARD Features?
Jack,
Thanks for the latest releases.... ?
I have been going over the new manual ?and have the board nearly all done..
Just waiting for some chokes and some 78L08..
?
I have a few questions:
?
1. In the manual, on the display there is sw1 sw2 sw3 ? what is that?
?
2.How do I select USB /LSB? I use the digital modes such as jt 65
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3. Is there a vfo option - more ?than one vfo? vfoA / vfoB etc or freq storeage so one can jump to saved locations.?
?
4. When putting the bitx in tx is there tune option ?(a carrier for the tuner tuneup)?
?
Joe
VE1BWV |
Re: TFT/VFO Code and PCB Update
Jack Purdum
Just sent the parts list out. Jack, W8TEE From: N8DAH <Dherron@...> To: [email protected] Sent: Saturday, June 10, 2017 7:20 PM Subject: Re: [BITX20] TFT/VFO Code and PCB Update Order sent I need to get a BOM can't find one or do I pull it from the Manual?
?
?73
? Now I need to get a bitx
David ?N8DAH
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Re: BITX40 package size
The good news is that D7 blowing makes a whole lot more sense.
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The bad new is that it blows if the power supply leads to the Bitx40 are reversed. I'm having a hard time imagining any other reason for it to blow, except maybe a faulty diode to begin with. I suppose it could have been stuffed backwards, though a quick power-up at hfsigs should have caught that. Jerry, KE7ER On Sat, Jun 10, 2017 at 04:33 pm, <mattcarus@...> wrote: Based on the picture (I don't have the board with me now) it's actually D7 that has blown, not D6. ? |
Re: BITX40 package size
L3 is fully isolated for DC by the three caps around it, so shorting L3 to C130A1 should not have done much.
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Make sure both wires of L3 are still soldered to the board or receive will be deaf and transmit dumb. Are you sure it was D6 (into Q6 collector) that was fried? ? If so, this is all very puzzling.? Any other hints as to what was happening when D6 blew? D6 is only powered when the rig is transmitting, when it blew the TX rail likely had power on it for some reason. If the IRF510 is only powered by 12v or so, it's probably fine even if it was transmitting into no load. If it did blow, they are very cheap and easy to replace. ?The damage would be confined to the IRF510. At any rate, so far so good. I have no reason to think you did serious damage. Jerry, KE7ER On Sat, Jun 10, 2017 at 02:41 pm, <mattcarus@...> wrote:
Right, taken another look at the board and the good news is that I didn't reverse the polarity! There are no obvious solder bridges or damaged tracks etc either which is good, however I did notice that one of the inductors (L3) was bent over and resting against the relay side of C130A1 (photo hopefully attached). I assume that this isn't good but my expertise doesn't stretch to knowing exactly how bad it is. Probably also worth mentioning that there was no antenna/dummy load attached so maybe the L3/C130A1 short put the board into transmit but there was no load? ? |
Re: TFT/VFO Code and PCB Update
¿ªÔÆÌåÓýHi Bill,I¡¯d like to take a board if you get a couple, 73s? John VK2VOL
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Re: TFT/VFO Code and PCB Update
¿ªÔÆÌåÓýHi Jack I think a little
more clarification on the international order cost would be
helpful. "4 boards go for the price of 1" That suggests that 2 or 3 boards? could also go for the price of 1. If that is so, what would be the total price be for 2 boards ..... $15.00 for first +$7.50 for the second, $22.50 in total? $30.00 total for 3, $37.50 for 4? By the way, my earlier offer to act as a VK/ZL group distributor, at cost, stands although I fully understand if you prefer to use the direct mail approach you have outlined.. Bill, VK7MX On 11/06/2017 3:32 AM, Jack Purdum via
Groups.Io wrote:
All: |
Re: Raduino V1.01 vs V1.14 Birdie at 7.200
As mentioned already please try v1.14.1
Please also make sure you're using the correct SI5351 library. It MUST be v2.01 (later versions are known for strong tuning clicks). If it doesn't work for you you can always try earlier versions with less functionality. All earlier releases are available at For example v1.04 supports 10-turn tuning pot, but it doesn't have all the extra functions yet. 73 Allard PE1NWL |
Re: BITX40 package size
Right, taken another look at the board and the good news is that I didn't reverse the polarity! There are no obvious solder bridges or damaged tracks etc either which is good, however I did notice that one of the inductors (L3) was bent over and resting against the relay side of C130A1 (photo hopefully attached). I assume that this isn't good but my expertise doesn't stretch to knowing exactly how bad it is. Probably also worth mentioning that there was no antenna/dummy load attached so maybe the L3/C130A1 short put the board into transmit but there was no load?
Would appreciate someone with more knowledge than me assessing how extensive the damage is likely to be? Many thanks! Matt 2E1HNK |
Re: Keeps getting better Bitx40
philip yates
Its the VK3YE AGC circuit, available videos in 3 parts from youtube.? https://www.youtube.com/watch?v=IQ5JEPRiPoM&t=263s BC548 diagram? Sometimes its the simple things that trip us up, Used to spend hours with OC71 & OC81 transistors, but that was years ago.... Cough cough..... 40+ years ago, mind forgets things. Phil - G7BZD On Sat, Jun 10, 2017 at 9:54 PM, Joe <joeman2116@...> wrote:
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Re: Keeps getting better Bitx40
Do you have a picture of the schematic with the corrected transistor pinout? thanks Joe VE1BWV On Sat, Jun 10, 2017 at 10:58 AM, philip yates <phil@...> wrote: Thought I would add the VK3YE AGC. |
Re: Raduino V1.01 vs V1.14 Birdie at 7.200
OZ9AEW
there is only VFO, Cal. Button and Mic. connected in my Bitx40, I am only going to use it on LSB !
I have a lot of 7MHz CW Rigs from about 200mW to 750mW and there is a Regen set on workbench for CW ( 7.000 to 7.100 MHz ) in two version..... one for about 2 W and one for 30 W |
Re: Voice automation
if only i knew the beast this would unleash.... :-D - f On Sun, Jun 11, 2017 at 1:22 AM, Larry Smith <815cpu@...> wrote:
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Re: Raduino V1.01 vs V1.14 Birdie at 7.200
Joe Puma
¿ªÔÆÌåÓýDidn't know 1.14.1 was released. So many emailed go flying by on this group. It's hard to keep up. I'm gonna try that because I downgraded to 1.13 because the ticking sound when it's just sitting idle.? Thanks, Joe KD2NFC Sent from my iPhone On Jun 10, 2017, at 4:02 PM, Allard PE1NWL <pe1nwl@...> wrote:
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