Ten-Tec_1056_user.pdf

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1、RESIS.TOR 0 REFRESHER Multiply both digits of first 2 bands by 3rd Band: black 0 o x 1 brown 1 1 x 10 red 2 2 X 100 orange 3 3 X 1000 yellow 4 4 x 10,000 green 5 5 x 100,000 blue 6 6 x 1 ,ooo,ooo violet. 1 1 gray 8 8 Wblte 9 9 DDkl -X 0.1 Examples . reel-reel-gold = 2.2 n rea-red-black = 22 o red-re

2、el-brown = 220 o red-red-red = 2200 0 12.2KI ALL ABOUT THOSE red-red-orange = 22K Disc cap Numbers! 4th Band= mfrs roterance. 101 = 100 pF Gold= 5% sliver = 10% 102 = .001pF Some Ham Band :c Highlights c WARC Bands 10.100 10.150 18.068. 18.168 24.890 24.990 National calling Frequencies !Simplex!. 29

3、.600 FM 50.110 SSB OX 50.200 USA SSB 103 = .01 pF 104 .;, .1 pF want more? 221 = 220 pF 222 = .0022 pF 223 = .022 pF 331 = 330 pF 332 = .0033 pF 471 = 470 pF 472 = .0047 pF 473 = .047 pF 474 = 7 Got the Idea ?17 51.700 Packet .-.,-., 52.525 FM MAKE your Antennas! 144.20 sse 1/4 wavelength Un FEEn 14

4、6.52 FM = 234 +. FREQ In MHZ 222.10 CW-SSB use 238 tor radials 2;13.50 FM FOR VHF. vou cari use 2808 432.10 CW to (le 1:4 A In INCHES II! 446.00 FM E1SY QRP CW 7.040 10.106 14.060 Easy Space to Earth 29.357 RS10 series satellite cw beacon 145.55 FM SAREX :h lower than resistors in your kit. values a

5、re In :H tmlcrone!lnesl, to 1000 pH per resistor coae, with 3rd silver band = x .01. Examples: red-red-silver 122X.011 = 0.22 ;.H red-reel-gold 1 X 0.11 = 2.2,:H red-red-black I X 11 = 22 pH red-red-brown IX 101 = 220 pH brown-black-red = 1000 11H FOR SURE! we ALL know this E volts = 1 amps X R 6hms

6、 R = E/1 I= E/ R P watts= E x I They used to make BULLETS . bY dropping melted lead way down Into cold water. Thats how some folks make excellent cold solder joints - . by melting solder with the iron so It blobs onto the board, looking like deformed buckshot. PLEASE . heat the connection Itself so

7、IT does all the melting, forming a shiny cone, not a dirtY blobl A super SOLDER BRIDGE Is built with that extra solder clinging to the Irons tiP that we didnt need anyway. Just jiggle the soldering Iron, and we can bUild nifty bridges across 2, 3, 4 or more PC-board soldering points, especially DIP

8、ICS or sockets. oont try It: youll hate it I . 11itKif A Division of TEN-TEC, Inc. 1185 Dolly Parton Parkwav Sevierville, TN 37862-3710 Information 1-865-4537172 Fax 1-865-428-4483 Orders 1-800-833-7373 credit card orders only) I 1 l No. 1056 T-KIT Module Board 74306 CW-558. RECEIVER ANY BAND NE61 2

9、 Direct-Conversion desig with all parts for choice of 1 60-1 0 meter ham bands, plus variable . bandpass . : n1 01 oaOijl!l.lj ; ., elid l. . ;: ;: :;t! 1 . . ,.; I i:li!f, !i! 1:/jSJ, , - j u w . .J . i;L. Q . , , . :.u; w.9 .0 LJ ;: ; f-WJ u , . u- QL-J .n0 c. . . . :. w- . u . , : : rv. :r:.: . .

10、 .;or;:/ j I.Lj. , . 1-CD . 2; CN . . . 0. D! . .,_a: . -itt I 0 . .-,. u ;!. . . ,- E . ;!t T em rlD B!J. - : o:-; - . c: . . ,; . -: . :J b:J . o Q+o:Q . _t)o=G. I . . a: - _. 0 0! 0 u c:; lJ. a: 01! 1056-10 ,tJ . .1: a cg = 11)0 Oot- .-o Q) tJCD I I t-E U.!: Gl :I ti C cr I!U) UUICI ai E .5 10 .

11、-c Q) )(C:2 omo g,+- Q)U)Q) U) .c U) CliO .,!:C CIQ)O Ql :!: 0 m . :J._.Q) crcC U)IOO c.E . u-o 10 w c 01-10 .OoU) .t:! z Ql :JW C ul-= .!: Q) u.c- 1-.,.o -cE -a:l I U) 1-UI ._.,m :JC.:. o.: g! -a.- . c. CD w Ql u 1-mUI 0-c Z oro UIP Circuit Board Assembly Steps The basic assembly procedure will be

12、to install all parts common to all bands first, leaving the frequency-determining parts for last. The component outlines si/kscreened on the top side of the board make the location of parts reasonably obvious with minimal need for written explanations. There is no wrong order to stuffing the board,

13、as many electronics buffs like to do it, but it is quite common even for very experienced builders to make mistakes in parts values or in orienting one-way-only parts. Therefore, we encourage you to take advantage of the check blocks, parts descriptions and.other information in these construction st

14、eps. 0 0 1. Install C21, a 33 JJF electroytic capacitor. This is your one detailed reminder that all 8 of the electrolytics used in this circuit MUST be installed with correct polarity. The ( +) side is clearly marked on the top of the circuit board. The ( +) side of the. capacitor itself is the lon

15、ger of the two wires, and the (-) side is designated by the dark stripe. 0 0 2a. Insert U3, the TDA2611 A SIP audio IC. Before soldering, make sure that the front (imprinted) side faces C21 just installed, and that the IC pins are pressed into their boarg_ holes as far as they can go. (Notice also t

16、hat the banded end of the imprinted side of the IC corresponds to the notch on the board silkscreen.) 0 0 2b. Solder the 9 pins of U3 per 2a, taking care not to form solder bridges across the ICs pads. 0 0 3. Install C20, .001 JJF (marked 1 02). 0 0 4. Install C22, 4 70 pF electrolytic, with correct

17、 polarity. 0 0 5. Install C24, 470 JJF electrolytic, with correct poJarity. 0 0 6. Install C19, 10 JJF electrolytic, with correct polarity. 0 0 7. Install C 1 8, 1 0 JJF electrolytic, with correct polarity . To complete the audio output section of the receiver, install the following parts: 0 0 8. St

18、ereo Jack J 1 . 0 0 9. AF Gain (Volume) 1 OK potentiometer R18. 0 0 10. R19, 1 OK (brown-black-orange). 0 0 11. R20, 3.3 ohms (orange-orange-gold). 0 0 12. R22, 3.3 ohms (orange-orange-gold). 0 0 13. C23, . 1 JJF (marked 1 04). Pp. 12-13: Schematic. Assembly steps continue on page 14.: 1056-11 T-KIT

19、 No. 1056 Direct Conversion Receiver ANTENNA -;), at .rc:- WI 101( ! (Rr CAH( Cl 1.a-l.t 1000 3.5-4.0 110 7.11-J.J II tl 14.0-14.35 47 ILOI-18.17 . 21-21.4S ., 24.1t-2Ut JJ , . n-n.s J1 1: co 4100 - 410 410 220 110 Z 110 uo Ll Cl 110 150 110 100 47 u ., ll u .!.i- A r-tL_J4 -=CI:-3 . J J, u,. C5 4.7

20、1( ft7 4.71( CIO AOJl . 4.71( Ill 4.71( J en II 1110 2ZGIC .1. C12 ll0/2$ :rzoN 2 .II( 8 +912VDC + 12VDC L% lJ r r-;- 1121 120 C4 c:s Ll L% 110 ., 1.0 1.0 uo .01 1.0 1.0 lila . u 100 IS 2.1 , . ., IS u 2.8 JZ 10 1.3 , . ., 10 , I.) JJ 10 t.l u JZ 10 1.3 l.l LJ 41 8.2 - - - - - - - 8 :. j: j ; r v I

21、ai - ,r PROGRESS NOTE At this point, the audio outpl.t stage works, if all parts have been installed correctly per steps 1-1 3. If you enjoy keeping track of progress, use a highlight mtrker to color the portions of the schematic now completed. w 0 14. Install U2, the LM358 op-amp IC, making sure th

22、at its band, notch or dot is aligned per the board drawing, facing toward U3. Install the remaining electrolytic capacitors, being attentive to. correct polarity as explained in Step 1 . 0 0 1 5. C 1 7, 1 0 pF 0016.C12, 10pF 0017.C9,33pF Install these components of the M358 dual op-amp circuitry: 0

23、0 18. R1 0, 220K (red-red-yellow) 0 0 19. R1 f, also 220K 0 0 20. R14, also 220K 0 0 21 . C 11, 1 50 pF (marked 1 51) 0 0 22. C13, also 150 pF. 0 0 23. R12, 3.3K (orange-orange-red) 0 0 24. R17, also 3.3K 0 0 25. R21, 220 ohms (red-red-brown) . 0 0 26. R 13, 1 OOK (brown-black-yellow) 0 0 27. C14, .

24、01 pF film capacitor (marked 1 03) 0 0 28. C15, also .01 pF film 0 0 29. C16, also .01 pF film 0 0 30. R15, 680 ohms (blue-gray-brown) NOTE: The installation of jumper wires in stegs 31 and 32 presume you are setting up the board for us as a receiver only, not part of a transmit-receive combinatiorf

25、, and that you will use a single 12-volt DC power source. The JM2 MUTE jumper wire would be replaced by a shielded line to the T-R switching system of a transceiver or transmitter. The jumper JM 1 at + 12V provides flexibility in battery or power supply connections, which are discussed later in Powe

26、r Supply Considerations. 0 0 31 . Using bare wire nipped from a resistor already installed, make a staple-shaped jumper wire; install it at JM2 (MUTE). 0 0 32. As in Step 31, install a jumper at JM 1 ( + 12V). 0 0 33_. Install Bandpass Control R16, 1 OK potentiometer. 1056-14 Progress Test (Optional

27、): With all parts now installed except the NE612 with its RF input, oscillator, and AF output circuits, this is a logical point to check the operation of the full U2/U3 audio circuit, if you wish. To do so, follow this procedure: 0 Check first that Steps 1-33 have been completed correctly. 0 Connect

28、 stereo-headphones or speaker 0 Turn the Bandpass and AF Gain controls fully clockwise 0 Temporarily connect 12 volts DC, being careful about polarity. 0 Holding the shaft of a screwdriver (or a length of bare wire), touch the end of R19 nea.rest C19: you should hear a distinct 60 Hz AC buzz. 0 Rota

29、te the Bandpass control: you should har a distinct change in the pitch of the background hiss. 0 Disconnect the 12 volts DC wires. If you do-not observe these results, or if you get extra noises such as a howl, squeal or putt-putt, please double-check all parts installed before proceeding further. I

30、nstall the remaining 1 OK front panel controls: 0 a 34. R 1 , RF Gain 0 a 35. R2, Tuning 0 0 36. R3, Bandspread 0 0 37. Install U1; the NE612AN IC, making sure that its banded, notched end is oriented per the outline on the board. If you . choose to use an 8-pin DIP socket for U1, use the same care

31、in solderilig the. socket as you would for the IC itself. Install the R-C network between Ul and U2: 0 a 38. R6, 4. 7K (yellow-violet-red) Oa 39. R7, .4. 7K P 0 40. R8, 4. 7K 0 0 41: R9, 4.7K 0 0 42. C1 0, .0033 film capacitor (marked 332) 0 0 43. Install D1, the MV209 varactor diode. Let the diode

32、body seat firmly against the board before soldering, and be sure to orient the flat side of this transistor-shaped component per the outline on the board. P 0 44. Install the zener diode, D2, making sure that the banded cathode end is oriented with the stripe on the board outlne. 10.56-15 Install th

33、ese remaining parts common to all bands: 0 0 45. C6, .1 pF disc capacitor (marked 1 04) 0 0 46. C7, also .1 pF 0 0 47. C8, also .1 pF 0 0 48. R4, 1 OOK (brown-black-yellow) 0 0 49. R5, 1 megohm (brown-blijck-green) 0 0 50. R23, also 1 megohm 0 0 51. C25, 3 pF This completes installation of parts com

34、mon to all ba.nds. If there is no question in your mind about which band you wish to set up, final parts installation is only a matter of selecting the correct values for C 1-C5, L1-L3, and installing them in the normal way. If you plan to tinker with several bands before making a final choice, you

35、can make desoldering a bit easier on yourself by leaving an extra 1 /8 or so of lead length between capacitors and the board, and soldering only one of the two legs on thecoil shields. If you do change parts, be gentle so as not to damage the copper traces of the board, or the parts themselves. T -K

36、IT 1 056 Direct-Conversion Receiver GUIDE TO FREQUENCY-DETERMINING PARTS C1 C2 C3 C4 C5 l1 l2 L3 160 .001 .0047 180 180 .01 8.0pH 8.0pH 47pH 80 180 680 150 150 .01 .a.o 8.0 8.2 40 91 470 150 150 68 5.8 5.8 jumper 30 91 470 100 100 15 2.8 2.8 jumper 20 47 220 47 47 15 2.8 2.8 jumper 17 56 270 22 22 1

37、0 1.3 2.8 jumper. 15 47 270 47 47 10 1.3 1.3 . i_umper 12 33 180 33 33 10 1.3 1.3 jumper 10 27 150 22 22 10 1.3 1.3 jumper Complete identification data for the 1 056-LC Band Change Parts Kit is provided in the Kit Parts List on page 9. Before soldering the parts in Steps 52 through 59, write the cor

38、rect value in the blanks provided on the following page. 1056-16 I Install the following parts for the Meter Band: 0 0 52. C1, value 0 053. C2, value- 0 0 54. C3, value - 0 0 55. C4, value- 0 0 56. C5, value= 0 0 57. L 1, value marking 0 0 58. L2, value -marking - 0 0 59. L3, value=: color code _ _

39、A wire jumper MUST be installed at L3 if a coil is not required. First Connections The minimum connections needed to test the receiver are wires for DC power, an antenna or random wire, plus headphones or speaker. The normal color code for DC power is red for positive and black for negative. We reco

40、mmend using stranded hookup wire rather than the solid type: solid wire is prone to breaking easily. Before connecting 1 2VDC, it is worth the effort to go back over your work, checking for: 0 Quality of solder points 0 Completeness of soldering work (its easy to miss one) 0 All excess wire leads tr

41、immed 0 No wire scraps lodged between solder points Initial Tests, Adjustments Before applying DC voltage, place the finished and double- checked board on a clean, non-metallic work surface. If you are ready to do so, oscillator alignment will. go more smoothly if the board is already mounted to its

42、 intended chassis or panel, or clampedin a small vise. This is true especially for frequencies above 14 MHz, which can be affected by tiny capacitance changes of the board being moved around on another surface. Set the controls as follows: RF Gain-maximum (clockwise); Tuning, Bandspread, Bandpass-mi

43、d scale; AF Gain-as desired. Adjustment of coils L 1 and L2 must be made with a non-metallic alignment tool. If necessary, such a tool can be made easily. from a plastic shaft, wood dowel, etc. 1056-17 1 11 !j The oscillator coil (L2) is adjusted to the desired frequency either by listening for the

44、oscillator signal in a nearby receiver, or by tuning .the coil until you hear a desired reference signal with the 1056 receiver itself. That signal can be from a signal generator, VFO, QRP transmitter, or familiar activity on your favorite band. After getting L2 in the ballpark, adjust L 1 for maxim

45、um signal strength, reducing the RF gain as needed to hear the effect of adjusting L 1 . Use the Tune control and minor adjustments of L2 to ensure satisfactory coverage of the band. Final Assembly Enclosure, knobs, switching, connectors: selecting these yourself . is part of build.ing any T-KIT Mod

46、ule Board. If you want to use a T-KIT Enclosure-PLUS hardware/enclosure package, the 1 OOOC pak was designed with this 1056 receiver project in mind. DC Power Supply Considerations The ideal DC voltage source for the receiver is a 12 volt battery. A 12-15 VDC power supply with very good filtering ma

47、y also be used. Separate DC supply lines, normally connected by the jumper wire, are provided for audio IC U3 and the rest of the circuit, allowing you to experiment with the various power paks or batteries you have on hand. For exampl. a wall-plug-in DC power module may work fine for audio output b

48、ut introduces unacceptable hum or ripple to the receiver front end. Solution: try a battery for 12V-A and use the wall supply for 12V-B. Or, you may want to make the unit ultra-portable, using 8 or 1 0 AA alkaline cells: you may wish to ruri only the audio amplifier from the 12-volt battery pack, and use a separate 9V battery for the U1/U2 circuitry. The primary advantage of the dual voltage input is to increase the usef.ul life of the batteries. When the ba