Ham Radio 360
///////////////////////////////////////////
Ham Radio: Workbench-3 Power Supplies
Posted: 01 Aug 2016 11:00 PM PDT
http://hamradio360.com/index.php/201...ower-supplies/
In this episode of The Workbench, GeorgeÂ*@KJ6VUÂ*and JeremyÂ*@KF7IJZÂ*take a
look at power supplies for working on radios and electronic projects.
They breakdown the different types of power supplies, what to look for and
make some shopping suggestions.
Segment 1 News and Updates
HARA Arena closes.Â* Dayton Hamvention looking for a new venue.
Welcome our new sponsor MCM Electronics and use the promo code RADIO5 to
get 5% off your next order.
http://www.mcmelectronics.com/
Check out our listener, Tim, KE4KE’s nice blog site with lots of great
pictures and articles on portable operating at
www.ke4ke.com
Our listener, Vance N3VEM, is hitting the road to do a NAPOTA-Thon 12
national park activations in a 24 hour period.Â* Great blog site: Â*Projects
and musings about ham radio from a new operator at
http://www.n3vem.com
Our friend John, VE3IPS, makes a great video review showing how he sets up
his PackTenna Mini antenna.Â*Â*
https://www.youtube.com/watch?v=z4RO...&feature=share
Whats on Georges bench?
Shipped off the repeater and control system to Cale.Â* It’s a pair of
Motorola CDM1550 radios and a Sierra Radio Systems repeater controller
www.sierraradio.net
Sneak preview announcement … The first HamRadio 360 Workbench build project
will be an antenna analyzer.Â* The design was created by Beric, K6BEZ.Â* You
can see Beric’s prototype pictures and article on the project here…
http://www.hamstack.com/project_antenna_analyzer.html
The official build project is redesigned and updated on a single 3”x4”
PCB.Â* You can build the whole thing yourself from your own junkbox of parts
or you can get a full or partial kit.Â* The details are still being worked
out.Â* Stay tuned for more.
Whats on Jeremys bench?
Battery Testing comparing AGM, A123, and Bioenno
https://www.bioennopower.com/collect...ant=1014198656
Raspberry Pi Clock from N0BEL
http://n0bel.net/v1/index.php/projec...berry-pi-clock
Repair Tytera MD-380 charging cradle
Segment 2 – POWER SUPPLIES
2 Categories
“Ham” 13.8 volt radio power supply
Bench / Lab power supplies
Ham “High Current” power supply considerations and tradeoffs
Linear vs Switching?
Variable Voltage vs Fixed Voltage?
Meters vs no meters?
What do you add as you go up in price?
Precision
Linearity
Low Noise/Low Ripple
More current/power
Computer connectivity/programmability
Linear 12V High Current Power Supply: Astron RS-35A $180
http://www.hamradio.com/detail.cfm?pid=H0-004434
Switching 12V with Analog Meters: Samlex 1235M $130
http://www.mcmelectronics.com/produc...235M-/72-12820
Switching Variable Voltage with Meters: Powerwerx SPS-30DM $160
http://www.hamradio.com/detail.cfm?pid=H0-011684
Switching 12V: Powerwerx SPS 30DV $110
http://www.hamradio.com/detail.cfm?pid=H0-010662
Switching 12V Variable Voltage: Alinco DM-330MVT $160
http://www.hamradio.com/detail.cfm?pid=H0-003728
Accessories
West Mountain Radio Rig Runners
http://www.westmountainradio.com/rigrunner.php
Low Loss Power Gate Battery Charging System $50
http://ki0bk.no-ip.com/~pwrgate/LLPG/Site/LLPG.html
West Mountain Radio Super PWRGate PG40S $140
http://www.hamradio.com/detail.cfm?pid=H0-007770
Power Pole Distribution:Â*
https://powerwerx.com/powerpole-power-distribution
Anderson Power Poles:Â*
https://powerwerx.com/anderson-power...-sb-connectors
Key specs to look for
0-20v or more
Single ended 0-20v voltage reference to ground
Maybe Dual ended +/- 15 volts
Low ripple (1mv p/p) what is ripple?
EEVBlog Ripple and Noise
https://www.youtube.com/watch?v=Edel3eduRj4
2-5 amps
Meters for Volts and Current (digital or analog)
Current limiting adjustment
Resettable output breaker
Short circuit protection
What do you add as you go up in price?
Precision
Low Noise/Low Ripple
More current/power
Computer connectivity/programmability
EEVBlog earth ground vs ground referenced circuit:Â*
https://www.youtube.com/watch?v=xaELqAo4kkQ
George’s old favorite:Â* used Â*B+K Dynascan 1601 Â*0-30v 0-2A resettable
breaker Â*($60-$100)
Product Recommendations
Tenma 72-8345A 1-36V 3A Power Supply $150
http://www.mcmelectronics.com/produc...345A-/72-8345A
Tenma 72-8350 1-20V 5A Power Supply $160
http://www.mcmelectronics.com/produc...8350A-/72-8350
Tenma 72-9465 1-36V 5A USB Controllable $200
http://www.mcmelectronics.com/produc...-9465-/72-9465
GW Instek GPS-1850D $200
http://www.mcmelectronics.com/produc...850D-/72-12100
Common mode choke reference:Â*
http://www.karinya.net/g3txq/chokes/
This posting includes a media file:
http://media.blubrry.com/fo_time_the...Hand_Tools.mp3