MARKET CENTRE
Cash in your surplus gear. Advertise it here in SILICON CHIP
KIT ASSEMBLY & REPAIR
FOR SALE
VINTAGE RADIO REPAIRS: electrical
mechanical fitter with 36 years ex
perience and extensive knowledge of
valve and transistor radios. Professional
and reliable repairs. All workmanship
guaranteed.
$17 inspection fee plus charges for parts
and labour as required. Labour fees $38
p/h. Pensioner discounts available on
application.
Contact Alan, VK2FALW on 0425 122
415 or email bigalradioshack<at>gmail.
com
RCA RIBBON MICROPHONE, 44-BX,
ex ABC
Good condition. $1500 o.n.o. 2x
matching transformers. 2W / 200kW.
Jorgan 0.32 no.251 Negotiable.
Phone: 0408 335 241 AWST please!
DAVE THOMPSON (the Serviceman
from S ILICON C HIP) is available to
help you with kit assembly, project
troubleshooting, general electronics and
custom design work. No job too small.
Based in Christchurch, NZ but service
available Australia/NZ wide.
Email dave<at>davethompson.co.nz
KEITH RIPPON KIT ASSEMBLY &
REPAIR:
* Australia & New Zealand;
* Small production runs.
Phone Keith: 0409 662 794
keith.rippon<at>gmail.com
PCB PRODUCTION
PCB MANUFACTURE: single to multi
layer. Bare board tested. One-offs to
any quantity. 48 hour service. Artwork
design. Excellent prices. Check out our
specials: www.ldelectronics.com.au
Advertising Index
Altronics...............................79-82
Ampec Technologies............. OBC
Dave Thompson...................... 111
Digi-Key Electronics.................... 3
LEDs, BRAND NAME and generic
LEDs. Heatsinks, fans, LED drivers,
power supplies, LED ribbon, kits,
components, hardware, EL wire.
www.ledsales.com.au
ASSORTED BOOKS FOR $5 EACH
Selling assorted books on electronics
and other related subjects like audio,
video, programming etc. Many of them
are in poor condition. Some of the books
may not be for sale, but the vast majority
are available. Bulk discount available;
post or pickup. All books can be viewed
at: siliconchip.com.au/link/aawx
Silicon Chip
silicon<at>siliconchip.com.au
Emona Instruments................. IBC
Jaycar............................ IFC,53-60
Keith Rippon Kit Assembly...... 111
LD Electronics......................... 111
LEACH PCB Assembly............... 5
LEDsales................................. 111
Microchip Technology.................. 9
Ocean Controls......................... 21
RayMing PCB & Assembly........ 11
SC Micromite BackPack............ 65
MISCELLANEOUS
LOOKING FOR:
Set of Dick Smith Electronics catalogues
from 1975-1982. Must be in pristine
condition. Will pay $200 for the set (inc.
postage), only one set needed.
Contact Melanie (on behalf of inquirer
on 02 8832 3100)
Silicon Chip Shop...........106-107
Silicon Chip Subscriptions..... 103
The Loudspeaker Kit.com........... 7
Vintage Radio Repairs............ 111
Wagner Electronics................... 63
ADVERTISING IN MARKET CENTRE
Classified Ad Rates: $32.00 for up to 20 words (punctuation not charged) plus $1.20 for each additional word. Display ads in
Market Centre (minimum 2cm deep, maximum 10cm deep): $82.50 per column centimetre per insertion. All prices include GST.
Closing date: 5 weeks prior to month of sale. To book, email the text to silicon<at>siliconchip.com.au and include your name, address & credit card details, or phone Glyn (02) 9939 3295 or 0431 792 293.
age regulation of the resulting device.
Another, more conventional (and
probably more sensible) method is to
use a parallel transistor to boost the
output current of a regulator.
siliconchip.com.au
For example, we did this in our High
Power Linear Bench Supply project
(October-December 2019; siliconchip.
com.au/Series/339). You can even add
multiple parallel transistors, as we did
Australia’s electronics magazine
in that case, which helps to distribute
the heat and current even further.
For more information, see the following website: www.bristolwatch.
com/ccs/LM317boost.htm
SC
February 2020 111
