Microprocessor For
Digital Effects Unit
Now available from SILICON CHIP:
the 68HC705-C8P pre-programmed
microprocessor IC for the Digital Effects Unit described in this issue.
Price: $45 + $6 p+p
Payment by cheque, money order or
credit card to: Silicon Chip Publica
tions, PO Box 139, Collaroy, NSW
2097. Phone (02) 979 5644; Fax (02)
979 6503.
Circuit Ideas Wanted
Do you have a good circuit idea.
If so, why not sketch it out, write
a brief description of its operation
& send it to us. Provided your
idea is workable & original, we’ll
publish it in Circuit Notebook &
you’ll make some money. We’ll
pay up to $60 for a really good
circuit but don’t make them too big
please. Send your idea to: Silicon
Chip Publications, PO Box 139,
Collaroy, NSW 2097.
Electronics, 1/29 Stewart St, Parra
matta, NSW 2124. Phone (02) 890
2960; Fax (02) 630 3148. Pay by
cheque, money order, credit card.
UNUSUAL BOOKS: Electronic Devices, Fireworks, Locksmithing, Radar
Invisibility, Surveillance, Self-Protection,
Unusual Chem
istry and more. For a
complete catalog, send 95 cents in
stamps to Vector Press, Dept S, PO Box
434, Brighton, SA 5048.
DON’S SHORT FORM KITS: PIC
16C54-58/71/84 Universal PCB $23;
Basic Stamps $65; Serial Driven 18
I/O $70; Parallel Driven 64 I/O $38; Re-
SECONTRONICS
Advertising Index
COMPONENTS, COMPUTERS, ELECTRON
TUBES S/H TEST EQUIPMENT, COMPUT
ER REPAIRS
Altronics ..........................IFC,24-25
RECYCLED EPROMS: ALL ARE CLEANED,
ERASED AND BLANK TESTED.
Av-Comm.....................................85
2716
2732
2764
27128
27256
Avico Electronics.........................59
$1.50 ea or 10 for $12
$1.50 ea or 10 for $12
$2.00 ea or 10 for $16
$3.00 ea or 10 for $26
$3.50 ea or 10 for $32
David Reid Electronics ..............90
TRANSISTORS, ICs, DIODES
2N3440
$0.50 ea or 10 for $4
2N7000
$0.80 ea or 10 for $6
TIP122
$1.20 ea or 10 for $10
74HC04
$0.60 ea or 10 for $5
1N5060 diodes 100/$10 or 1000 for $70
7406
$0.25 ea or 25 for $5
LM380N
$2.50 ea or 10 for $20
DAC O8EP $5.00 ea or 10 for $45
VALVES:
12AV7 $4
1B3GT $5
6J6WA $5
QQV07/50 $15
6SG7
$6
1S2
$3
6AS7
$8
3D21
6U8A
6080WA
6X5GT
$6
$6
$9
$5
Phone, mail or fax your orders. Credit cards
accepted for orders $20 & over. Mail orders
to PO Box 2215, Brookside, Qld 4053. Or
shop sales at 143 Grays Rd, Enoggera Qld.
Hours: Thursday 4pm-9pm; Sat 9am-4pm.
Phone (07) 353 4919, Fax (07) 855 1014.
lay8 PCB $10-$20; Z80 Dev. $38-$52;
8K-4Mb Print Buff. $38-$52. Promo Disk
for all projects $2. Don McKenzie, 29
Ellesmere Crescent, Tullamarine 3043.
Phone (03) 338 6286.
PRINTED CIRCUIT BOARDS for the
hobbyist. For service & enquiries contact: T. A. Mowles (08) 326 5590.
Emona Instruments.....................89
E.R. Audio....................................95
Instant PCBs................................95
Jaycar ................................... 45-52
Kalex............................................93
MicroZed Computers...................95
Oatley Electronics.................. 60-61
Pelham........................................95
RCS Radio ..................................94
Rod Irving Electronics .......... 67-71
Secontronics................................96
Silicon Chip Binders....................96
Silicon Chip Bookshop.................23
Silicon Chip Projects Book......OBC
WANTED
Silicon Chip Wallchart................IBC
WANTED: Precission 10-60 American
valve tester. Manual required. Ask for
Peter. Phone (03) 632 3972.
Tortech.........................................77
SILICON CHIP BINDERS
These beautifully-made binders will protect your copies
of SILICON CHIP. They feature heavy-board covers, are
made from a distinctive 2-tone green vinyl & have the
SILICON CHIP logo printed in gold-coloured lettering
on the spine & cover.
To order, just fill in & mail the order
form on page 9, or phone or fax
your order to:
Silicon Chip Publications, PO Box
139, Collaroy Beach, 2097. Phone
(02) 979 5644. Fax: (02) 979 6503.
96 Silicon Chip
Dick Smith Electronics........... 10-13
Yuga Enterprise...........................95
_________________________________
PC Boards
Printed circuit boards for SILICON
CHIP projects are made by:
• RCS Radio Pty Ltd, 651 Forest
Rd, Bexley, NSW 2207. Phone (02)
587 3491.
• Marday Services, PO Box 19-189,
Avondale, Auckland, NZ. Phone (09)
828 5730.
• H. T. Electronics, 35 Valley View
Crescent, Hackham West, SA 5163.
Phone (08) 326 5590.