开云体育

Hi all, I had the intention to build this transceiver when a friend of me brought this Yahoo group under my attention. Too bad, now I spend all the time on reading all information instead of

Hi according to my diagram +V should be on pin 6 as mentioned .. looks like pins 5 and 6 need to be changed for each other as output must be on 5 and volts in on 6 Charles G4VSZ

Hi all. I have posted a pic, I hope in the photos section. This is my first attempt at using Press & Peel to create PCB's as I usually use the island method etc for my projects. I was so impressed

Anyone checked this - is +V on pin 5 correct? Should it not be on pin 6? Mark.

mark, check the corrected schematic on http://www.phonestack.com/farhan. the earlier circuit had a typo. - farhan

Dear forum, The IRF510 and 2N2218 is not available here in INDONESIA, -Could you suggest an alternative for 'linear amplifier module' ? -Can I just use: HF BANDS QRP LINEAR AMPLIFIER - 4WATT or TEN

Hi All, Actually, I think that the Manhattan in the QRP construction method really refers to the use of straight wires on a 90 degree grid. At least that is where the term originated. Typical

Mark & Hans, Many thanks for your replies. Small rectangular pads should work just fine, and those I can come up with - I don't know why it didn't occur to me. Thanks for your help, Bruce/nd8i

Many thanks Hans - my set of components arrived today! Payment was sent straight away by first class post. Keep up the excellent work! Duncan G4DFV

Mark, Bruce et al I don't think the difference between "ugly" and "Manhatten" methods is all that much. My method is a bit of a hybrid I suppose. Mostly ugly. But if I find a point needs to be

Bruce I bought a "Copper island Construction Kit" but they ceased trading a while ago, I found someone (and I can't remember who or find the e-mails) that sent me some replacement (re-stock) pads via

I've been using ugly-style construction, which has worked quite well. I've noticed a bunch of constructors have used Manhattan- style construction. Not being willing to leave well enough alone, I

It's definitely possible, I am a member of another group where the members do post pictures to the photos folder, and don't have to be administrator. Have a look at the folders on the group home

Hi! Has anyone attempted to list all BITX20 components? I haven't found any link on Ashan's page. Here is my attempt at listing all components, except for the IRF510 PA (had no time). Please warn me

G'day Troops, I note that one or two contributors have mentioned attachments (which do not appear). At the same time there are some photographs which CAN be accessed. Being a Bear of Very Little

Help please... I'm new to this forum thing, so I have to ask "How does one go about posting a schematic or picture of BITX related info"? I sent an attached file with one of my posts and now my email

yahoo groups doesnt not retain attachments. if you can forward the pictures to me, i canupload them on the folder. i am new ot yahoo groups. i don't know if you can directly upload the pictures

Mark, USB requires setting the carrier to the lower edge of the filter's passband and LSB requires setting the carrier to the upper edge. given that we are sourcing crystals from varied places, it

<AOL> Thanks Hans, all arrived safe and sound Jon H.

All I'm happy soldering here, but have a question: In the text for the BITX20 it says "If you are using this for 14MHz and above, the BFO will need a coil in series with the crystal". This is what