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Hi all Looking for some help here. Testing the RX today, AF amp clearly OK, the simple tests in the text work out fine i.e. Touch base Q4 static, Q3 more static, Q2 less static. Trimmers with L1,2 &

That wire is large enough that it should not have fractured within its enamel coating. For L1 - 3, an ohmmeter will confirm continuity. For T1 and T3 -- this is worth asking -- did you use

This is really Cool, thanks very much :-) Regards, John ============================================= email: k5jhf@... photos: http://photos.yahoo.com/k5jhf@... files:

BITX'ers, DEADLINE: 12:00 UTC THURSDAY 01-JUL-04 (TOMORROW!) Paolo, Farhan and myself are investigating the possibility of a complete kit of all parts for the project, including resistors,

Hello, I just measured the resonance frequency of ten 10 MHz crystals. I found a set of four within 30 Hz and another set of four within 45 Hz. How does this compare to other peoples

found a How do you do that? Figure out the shape that is? Tnx N3Ted

Hi, I build some parts of the transceiver and tested every part individualy. The LF parts works fine (a pitty the schematic is not corrected with the voltage/output of the lm386). If I add a sinus

the correct schmatics are now at www.phonestack.com/farhan. i have run out of bandwidth on http://farhan.net.co.nr. ther is no way i can access those files now. just before i ran out of bandwidth, i

crystal the shape is easy to figure out if you already know the crystal parameters. the crystal parameters are easier to measure now thanks to the G3UUR method. i have outlined it at

Thanks for the additional information. I checked again http://www.phonestack.com/farhan/bitx.html and found out that point 5 and 6 are stil wrong (not in accordance with the data sheet, as noticed

- farhan wrote: i am convinced that we need to add detailed test measurements for the transceiver on the site. i have most of them in my log book. i will post them soon. I would welcome test

Here are my measurements in ascending order: 9,994,677 9,994,704 9,994,733 9,994,747 9,994,799 0 9,994,811 +12 9,994,821 +22 9,994,829 +30 9,994,874 9,994,887 You can see the chosen 4,

Hi All I rather agree with Mark - I have done a lot of construction in the past and the absence of such info takes a long time of searching for a fault. AND It will make great testing and fault

Please I do not have the 10MHz crystals to make the filter, but I have 5 pieces of 8MHz crystals with this 8MHz crystals is possible to make the filter with new values of resistor and capacitor?And

Note that I have 20 spare 10MHz crystals, from my components order. Price is ?2.23 for 10 crystals, plus postage at cost. 73 Hans G0UPL http://www.HansSummers.com

The order for the 2nd round of components is now in. With any luck, they arrive tomorrow and I despatch them to you tomorrow. Due to a shortage of 2N2219 at Viewcom I ordered the real 2N2218 from

Hi, to this kind of filter can be made with several x-tals. For SSB usualy x-tals above 10 MHz are used, however, lower is also possible. The lower the x-tal frequency, the smaller the capacitors

BITXers There are several alternative ways to build various parts of the BITX design. For my BITX40 I chose a PTO type oscillator for the VFO. This uses a layout similar to that done by Jom -

Ashtar, I have followed the link to your site:- www.phonestack.com/farhan and the schematic around the LM386 still looks the same as before. Duncan G4DFV

Felipe I first buiilt the BITX20 and am now working on a BITX40 version. That way I can compare DC voltages and RF & AF signals with a working unit as I complete the 40 Meter version. Here are some