PARTS LIST


** VCR or computer (like C-64) audio/video to Ch 3/4 "RF Modulator"
or other Ch 3/4  (~65 MHz.) source (as from camcorder) can be used to feed
the exciter audio and video.

NOTE: Depending on the modulator chosen, the video amp shown
      driving the modulator (sytems bd) may have to be "tweaked".


                    SYSTEM CIRCUIT  -  WB4QXE  ATV430
--------------------------------------------------------------------------

J1 ---------------- CAMERA CONNECTOR, 10 SOCKET **
                    ( HOSFELT  VTR-2 )

U1 ---------------- 7810 VOLTAGE REGULATOR  (DIGIKEY)
                    ( W/ SMALL HEAT SINK )

U2 ---------------- 78xx VOLTAGE REGULATOR  (DIGIKEY) **
                    ( xx - DEPENDS ON RF MODULATOR )

U3 ---------------- 741 OPERATIONAL AMP.

FB1, FB2 ---------- 2 TURNS THRU LG. FERRITE BEAD

SW1 --------------- SPST SWITCH, CAMERA ON/OFF

SW2 --------------- SPST SWITCH, POWER ON/OFF

SW3 --------------- SPDT SWITCH, XMIT KEY (MANUAL)

K1 ---------------- SPST (MIN.) RELAY, 12 VOLT COIL,
                    2 AMP CONTACTS

F1 ---------------- FUSE + HOLDER, 4 AMP TYP.

Q1, Q2,
Q4, Q5 ------------ 2N2222A, TRANSISTOR

Q3, Q6 ------------ 2N3053, TRANSISTOR

D1, D2, D3 -------- LIGHT EMITTING DIODE

D4 ---------------- 10 AMP, 50 V., AXIAL LEAD DIODE
                    (REVERSE POLARITY PROTECTION)
D5, D6,
D7, D8, D9 -------- 1N4001, DIODE

C1, C2, C3 -------- 100 pf, CERAMIC CAP.

C4, C5 ------------ 470 pf, CERAMIC CAP.

C6, C15,
C17, C18 ---------- 100 uf, 16 V., ALUM. ELEC.
                    ( LOW ESR TYPE )

C7, C8, C10, C11 -- 2.2 uf, 16 V., TANT. CAP.
C12, C13, C14

C16, C19 ---------- .01 uf, CERAMIC (SMALL)

C20 --------------- 330 pf CERAMIC

R14 --------------- 500 OHM, MINI POT.

R12 --------------- 5K OHM, MINI POT. (EXACT VALUE
                    DEPENDS ON GAIN NEEDED, 2.5K-15K)


RESISTORS - TYP. 1\4 wt., CARBON, 5% TOL.

R1, R2, R3 -------- 680 OHM

R4, R15, R9, R11 -- 10K OHM

R5, R6, R20, R22 -- 2.2K OHM

R7, R8, R17 ------- 1K OHM

R10 --------------- 10 OHM

R13 --------------- 100 OHM

R16 --------------- 6.8K OHM

R18 --------------- 3.3K OHM

R19 --------------- 470 OHM

R21 --------------- 220 OHM