rsÊpã¹Ãpp»ÃpÔsàp’ÞÌp¡§Îp@hÎp=ÛØpêŽÉp Pulse Induction, "Parts List"

Pulse Induction, "Parts List"

 

Minor Revision made: 09/09/2002

 

IMPORTANT NOTES:

 

 

Substituting an LM317 for the REG1117A will work OK for a Bench Test, But it

is "NOT A GOOD SUBSTITUTE" on the final project. It will cause instabilities

as the battery voltage drops to 12 volts! This will result in poor control

of the unit and require more adjustments. Also possible, "False readings"!

The REG1117A is a Low Drop OUT REGULATOR. The LM317 has a 2.5 volt drop

across it.

 

A 1N4148 in place of the 1N4937 will also work for short term, but will

probably fail later. Its Too low of a current rating.

 

 

PCB *** Make your own, or order one from me at "chemelec@hotmail.com"

 

 

R1    110    All resistors 1/4 watt.

R2    750

R3    47K

R4    47K

R5    15K

R6    4K7

R7    3K3

R8    68K

R9    4K7

R10   68K

R11   150

R12   680

R13   150

R14   680

R15   1k5 (is "J1" on the schematic) Use for Single coil design. Do not use R16

R16   470 (is "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

R32  470K

R33   68K

 

VR1   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

 

C1      1 Mfd tant.  @ 35 volts

C2     10 Mfd Tant.  @ 10 Volts

C3     10 Mfd. tant. @ 10 Volts

C4     10 Mfd. Tant. @ 25 Volts

C5    100 Mfd. Electrolytic @ 25 Volts

C6      1 Mfd. Tant. @ 10 Volts

C7      1 Mfd. Tant. @ 10 Volts

C8     10 Mfd. Tant. @ 10 Volts

C9      1 Mfd. Tant. @ 10 volts

C10     1 Mfd. Tant  @ 10 Volts

C11      .1  @ 63 Volts   Philips Mylar Caps. MK Series

C12      .01 @ 100 Volts     "

C13      .01     "           "

C14      .01     "           "

C15      .001    "           "

C16      .01     "           "

C17      .01     "           "

C18    10 Mfd. Tant. @ 10 Volts

C19      220 Pf disk

C20      .01  @ 100 Volts  Philips Mylar Caps. MK Series

C21      .01     "           "

C22      220 Pf. Disk

C23      500 Pf. Disk (Freq. Comp. -- May be reduced in value or omitted)

C24      500 Pf. Disk (Freq. Comp. -- May be reduced in value or omitted)

C25      .1 @ 63 Volts  Philips Mylar

C26      .1       "

C27    22 Mfd Electrolytic

C28      .1  @ 63 Volts   Philips Mylar

C29      .01 @ 100 Volts     "

C30      .22      "

C31    10 Mfd. Tant. @ 10 Volts

C32    Error, This Part Doesn't exist

C33    10 Mfd. Tant. @ 10 Volts

C34   470 Mfd. Electrolytic @ 10 Volt

 

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

 

IC1    REG-1117A  (Surface mount "SOT-223" Package. Mounts on copper side.)

     (Possible Sub. "MC33269ST-ADJ"  "SOT-223 Package" Adjustable version.)

IC2    LT1054-CN8 -- (8 pin dip)

IC3    78L05   T0-92

IC4    79L05   T0-92

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 acceptable

 

Q1     IRF640  (Can cut off heat tab if you wish to reduce height.)

Q2     IRF640  (Can cut off heat tab if you wish to reduce height.)

Q3     2SK30A or 2N3819

Q4     2N4125 PNP transistor

 

M1     200 Ua. Meter (or 100 Ua. or 50 Ua., But need to change R31)

       For Extreme sensitivity, use a 200 Ua. Digital Panal Meter.

 

SPKR   Any speaker or headphones with a "Good Low Frequency Response".

 

LI     Aprox 40 turns, square, round, Or Whatever! More info to Come!

L2     Same as L1 if used!

       See other Write-ups on the coils and coil forms.

 

BI     12 Volt, 1.2 AH Sealed Lead Acid Battery, Or Whatever at 12 Volts!

       DO NOT operate this unit at a supply voltage of less than 11 volts

       when calibrating unit. Operating voltage must be greater than 10.5

       volts, or unit becomes unstable.

 

I believe all the Semi-conductors are available from Digi-Key.

Phone: 1-800-Digi-Key

 

 
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