Components used in the diagrams are listed here. Rf Parts Company, San Marcos California UNW Label Use this part Trimcaps Arco # (uuf) 1KV 500V mini stnd 7 - - 400 420 - (30) 45 - - 403 422 461 100 302M 302 407 424 463 255(280) 303M 303 407 426 464 800 306M 305 - - 4610 1000 307M 307 - - 4611 to 4614 ---------------------------------------------------------------------------- UNW Label Digikey Digikey Parts no longer used because of discontinued stock. ------------------------------------------------------------------ Most parts are now from EBay, usually from Happy Contented Worker Factory in China. ------------------------------------------------------------------ MASTER PARTS LABEL LIST FOR UNW SUPERHETS (160-40m). Mechanical details given in RF IF Transformers. Band T1 T2 T3 coil (trimcaps all ARCO 464 or 407), plug in, 6pin or KimKan 160 39uh (33uh) 75-80 10uh or 12UH 60 5.6uh * 40 3.3uh 30 and up homemade(see elsewhere) Note: There is a T3 (L1) that uses different values than above (Info on L1) Band L1 Osc Tune range 160M 32.7uh (2.25mc-2.45mc) 80M 10.8uh (3.95mc-4.4mc) 60M 8.16uh (4.5mc-5mc)* 40M 3uh (7.45mc-7.95mc) *T3 to tune BELOW Fo in 4.7mc region 60M also used with converters for bands above 40M. Due to use of 470KC I.F. some of the information for T3 may need to be modified. C1: CVW-4451 (which has its own trimcaps) Adj trimcaps on this to set high end; adj coil length to set low end. There is no Cp or Ct adjustment when using T3 (L1) version of HFO. Other verions of T3 using 2 coils (one being kathode feedback) use same coil as T2, adjust trimcaps Cp and Ct as follows: T3: CP adj for top of band C1 open CT adj for bottom of band C1 closed. Repeat til no further improvement. C1 will be normally any tuning capacitor from 100 to 365pf at full mesh. CP is going to make it smaller anyway.However, with T3(L1) C1 will be CVW-4451, a 75 and 180pf dual gang cap at A.E.S. T101, T102, T103, (T104....) (400-500kc zone) coil= 1mh trimcap = ARCO 464 or 407 BPF Info (Gnd Grid ckts and Low Z ckts) Band coils caps (fixed tuned) 160M 10uh 680pf 80M 5.6uh 330pf 60M 3.3uh 270pf 40M 3.3uh 150pf 10M 0.68uh 47pf The lower Q and normal +/- tolerances causes broad-band response enough to not require adjustment. Crystals #N+1 are 1.85kc higher than #N These are FT-241-A Signal Corp USARMY Western Electric in the 370-500kc region, Fo = 100kc steps, Fx=1.85185kc steps. N= channel number of your choice suiting availability, with #16 to #70 being best; #45, #46 being perfect (but least available.) Due to an EBay grab of a bagful of 470KC crystals, an I.F. of 470KC is being adopted. All further work on the SSB bandwidth filters has been abandoned since only CW is being used now. ------------------------------------------------------------- Digikey Components 3640KC Xtal X008-ND 3700KC Xtal X012-ND 455KC Ceramic Xtal X921-ND Other xtals in hambands also exist. 10.7MC Xtal filter X702-ND 12.5KC BW 10.7MC Ceramic Filter TK2307-ND 180KC BW 455KC Ceramic Filter TK2330-ND 8KC BW -------------------------------------------------------------- F O R R E F E R E N C E U S E O N L Y Digikey Coils (safe in tube ckts, Rx, low level Tx and under $3) Value Stnd V8, 1/4" Sealed 1/8" Hicurrent Radial 1uh M7010-ND M8013-ND - 3.3uh M73R3-ND M8019-ND - 5.6uh - M8022-ND - 8.2uh - M8023-ND - 12uh - M8026-ND - 15uh - M8027-ND - 33uh M7330-ND M8031-ND - 39uh - M8032-ND - 56uh - M8034-ND - 100uh - - M6019-ND (1.4A) 1000uh M7102-ND M8049-ND M6031-ND (0.5A) 2200uh M7222-ND - - 4700uh M7472-ND - - 100mh - - M5954-ND (65Ma) $3.50 Low Cost, sealed 1/8" (under $1.oo) 150ma limit 1uh M7813-ND 3.3uh M7819-ND 5.6uh M7822-ND 8.2uh M7824-ND 12uh M7826-ND 15uh M7827-ND 33uh M7831-ND 56uh M7834-ND 100uh M7837-ND 125ma limit 1000uh M7849-ND 41ma limit ------------------------------------------------- Vacuum Tube Criss-Cross sub chart For use in most audio, I.F. and some R.F. ckts on HF below 16MC. Performance and B+ used is based on the that tube of least ratings. RK suits them all. Tubes are grouped by pinout. Tube Type** Function% Notes 6F6 6K6 6L6 6V6 12A6 12V6 Audio 100-250V B+, RK=680 6AU8 6AW8 6BA8 6EB8 Audio & RF 100-135V B+, Pentode RK=180 6EA8 6GH8 6LM8 6U8 Audio & RF 100-135V B+, RK=180 6BK7 6BQ7 6BS8 etc. Audio & RF 100-135V B+, RK=220 6AF4 6T4 etc. RF 80-100V B+, RK=220 6EJ7 6JC6 AF, RF 100-135V B+, RK=180 6SK7 6SS7 6SD7 6SG7 RF, IF with AGC 100-250V plate RK=270 (and 12 volt versions) 100-125V screen Tie pins 3 and 5 together, treat as Cathode. 6AC7 6AJ7 AF, RF, OSC As above but RK=150 All tubes with base codes 6CC, 7BD, 7BK, 7CM tie pins 2 and 7 together and treat as Cathode. Use 90-125V B+ and RK=180. Will work as 6BC5 in function. Vacuum Tube crossover list (change socket and wiring) - go either way Based on similar specs 7 pin octal 6AQ5 6F6, 6K6, 6V6 e, 6L6 (6F6,6K6,6L6: use 680ohm RK) 6AV6 6SQ7 e 6BA6 6SG7 e 6BE6 6SA7 e 6AB4,6C4,6T4,6J6 (RF input) 6J5,6C5 (125v max B+) (gnd grid rf amp) 6J6 (audio) 6SC7 6AU6 6SH7 e, 6AC7, 6AJ7 (6CL6 - 9 pin) 6AG7 e e= exact same electrical spex or extremly close to 7 pin job % Oscillator, Mixer, Amplifier service below 30MC ** And all those with same base diagram. This includes "A"..."G" thru "GTB" etc. suffix too. ------------------------------------------------------------------------------------- More will added as time goes by. Tnx for pointing out typos. :)