R1 110 All resistors listed here are 1/4 watt, metal film types.
R2 750
R3 47K
R4 47K
R5 5K1
R6 4K7
R7 3K3 or 1K8
R8 68K
R9 1K5
R10 68K
R11 150
R12 680
R13 150
R14 680
R15 1k5 ("J1" on the schematic) Use for Single coil design. Do not use R16
R16 470 ("J2" on the schematic) Use for Dual Coil design. Do not use R15
R17 470
R18 680
R19 10K
R20 330
R21 820
R22 47K
R23 220
R24 1K
R25 1M5
R26 51K
R27 51K
R28 2K2
R29 2K2
R30 18K
R31 8K2 (or 270 ohms for Expanded Meter.)
R32 470K
R33 68K
R34 1K2 for Expanded Meter.
25K Phier PT10V Trimpot (DC Offset for IC9) Vertical Adjust style.
VR2 50K DC Offset for IC10 (Beep Null)
VR3 1K Volume
VR4 5K Meter Zero
VR5 Optional Pulse Width Control (10K) This is "R5A" on the Schematic.
VR6 Optional Dead Time Control (5K) This is "R7A" on the Schematic.
VR7 Optional Recieve Time Control (5K) This is "R9A" on the Schematic.
S1 Optional Rotary Switch, Your Choice on Positions.
C1 1 uF tant. @ 25 volts Min.
C2 4.7 to 10 uF Tant. @ 10 Volts Min.
C3 4.7 to 10 uF. tant. @ 10 Volts Min.
C8 4.7 to 10 uF. Tant. @ 10 Volts Min.
C4 10 uF. Tant. @ 25 Volts Min....ok mange
C5 100 uF. Electrolytic @ 25 Volts... ok 9 stk
C6 1 uF. Tant. @ 10 Volts Min.
C7 1 uF. Tant. @ 10 Volts Min.
C9 1 uF. Tant. @ 10 volts Min.
C10 1 uF. Tant @ 10 Volts Min.
C11 .1 uF Metalized Polyester Film Cap.
NOTE: If you use the Optional Frequency Control Switch
and Capacitors "C11a to C11e", Than OMIT C11.
C11a These Values are Your Choice, Metalized Polyester Film Caps.
C11b These Values are Your Choice, Metalized Polyester Film Caps.
C11c These Values are Your Choice, Metalized Polyester Film Caps.
C11d These Values are Your Choice, Metalized Polyester Film Caps.
C11e These Values are Your Choice, Metalized Polyester Film Caps.
C12 .01 @ 100 Volts "
C13 .01 " "
C20 .01 @ 100 Volts Metalized Polyester Film Caps
C14 .01 " "
C21 .01 " "
C16 .01 " "
C17 .0047 " "
C15 .001 " "
C19 47 or 100 Pf disk, depending on your requirements.
.C22 47 or 100 pf Disk, depending on your requirements.
C25 .1 @ 63 Volts Metalized Polyester Film Caps.
C26 .1 "
C27 22 uF Electrolytic @ 10 Volts
C28 .1 @ 63 Volts Metalized Polyester Film Caps.
C29 .01 @ 63 Volts " " " "
C30 .22 or .18 @ 63 volts " " " "
C31 4.7 to 10 uF. Tant. @ 10 Volts Min.
C33 4.7 to 10 uF. Tant. @ 10 Volts Min.
C18 4.7 to 10 Mfd. Tant. @ 10 Volts Min.
C34 470 uF. Electrolytic @ 10 Volt Min.
D1 1N4937 "High Speed diode."
D2 1N4937 "High Speed diode."
D3 1N4148 or 1N914
D4 1N4148 or 1N914
D5 1N4148 or 1N914
D6 1N4148 or 1N914
D7 1N4148 or 1N914
D8 1N4148 or 1N914
D9 1N4148 or 1N914 for Expanded Meter
D10 1N4148 or 1N914 for Expanded Meter
IC1 REG-1117A-adj (Surface mount "SOT-223" Package. Mounts on copper side.)
OR a MC33269ST-ADJ ("SOT-223 Package" Adjustable version.)
On Both these IC's, it is Not Recommended that you solder the Centre Lead.
Just solder the Two Outside leads and the Heat Tab.
IC2 LT1054-CN8 -(8 pin dip) "Substitute a ICL7660ACPA", it is much cheaper)
ICL7660.....SEE NOTE AT BOTTOM!
IC3 78L05 T0-92 pkg.
IC4 79L05 T0-92 pkg.
IC5 555 8 pin dip (C-mos version is acceptable)
IC6 555 8 pin dip (C-mos version is acceptable)
IC7 555 8 pin dip (C-mos version is acceptable)
IC8 555 8 pin dip (C-mos version is acceptable)
IC9 TL081 or TL071 8 pin dip
IC10 TL081 or TL071 8 pin dip
IC11 555 8 pin dip (C-mos version is acceptable)
IC11 555 8 pin dip (C-mos version is acceptable)
Q1 IRF640 or IRF740 (You can cut off heat tab if you wish to reduce height.) Q2 IRF640 or IRF740 (You can cut off heat tab if you wish to reduce height.) Q3 2N3819 or 2SK30A(Check PINOUT, Before Installing) Q4 2N4125 or 2N3906 or almost any PNP type signal transistor will work.
Aprox 40 turns @ 6" OD, 30 Turns @ 8" OD, 25 Turns @ 12" OD. square,
round, Or Whatever! I recommend around 20 AWG Wire (.032" or .8mm)
L2 Same as L1 if used!
See other Write-ups on the coils and coil forms!